/* ============================================
   TECHBOX Training Center — Global Styles
   Color Palette: Black & White
   ============================================ */

/* CSS Custom Properties */
:root {
    --black: #000000;
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;

    --font-primary: 'Outfit', 'Inter', system-ui, -apple-system, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    --safe-area-top: env(safe-area-inset-top, 0px);
    --safe-area-bottom: env(safe-area-inset-bottom, 0px);
    --safe-area-left: env(safe-area-inset-left, 0px);
    --safe-area-right: env(safe-area-inset-right, 0px);
}

/* Reset & Base */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--gray-800);
    background: var(--white);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

img {
    max-width: 100%;
    display: block;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===================== TOP BAR ===================== */
.top-bar {
    background: var(--black);
    color: var(--white);
    font-size: 0.8rem;
    padding: 8px 0;
    letter-spacing: 0.02em;
}

.top-bar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar-left {
    display: flex;
    gap: 24px;
}

.top-bar-item {
    opacity: 0.85;
}

.top-bar-right {
    display: flex;
    gap: 20px;
    align-items: center;
}

.top-bar-link {
    opacity: 0.85;
    transition: opacity var(--transition-fast);
}

.top-bar-link:hover {
    opacity: 1;
}

/* Top bar special offer */
.top-bar-offer {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.top-bar-offer:empty {
    display: none;
}

.top-bar-offer a {
    color: #f1c40f;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s;
    white-space: nowrap;
}

.top-bar-offer a:hover {
    color: #fff;
    text-decoration: underline;
}

.top-bar-offer .offer-separator {
    color: rgba(255,255,255,0.3);
    margin: 0 6px;
}

.lang-switch {
    background: rgba(255, 255, 255, 0.1);
    padding: 3px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
}

/* ===================== HEADER ===================== */
.main-header {
    background: var(--white);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--gray-200);
    transition: box-shadow var(--transition-base);
}

.main-header.scrolled {
    box-shadow: var(--shadow-lg);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
    gap: 32px;
}

.navbar-brand img {
    height: 50px;
    width: auto;
    display: block;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    -ms-interpolation-mode: nearest-neighbor;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.logo-icon {
    width: 44px;
    height: 44px;
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-family: var(--font-primary);
    font-weight: 900;
    font-size: 1.35rem;
    color: var(--black);
    letter-spacing: 0.04em;
    line-height: 1.1;
}

.logo-subtitle {
    font-size: 0.7rem;
    color: var(--gray-500);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    font-weight: 500;
}

.main-nav {
    display: flex;
    gap: 6px;
    align-items: center;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-700);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--black);
    background: var(--gray-100);
}

.nav-link.active {
    color: var(--black);
    font-weight: 600;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 14px;
    right: 14px;
    height: 2px;
    background: var(--black);
    border-radius: 2px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--gray-100);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-full);
    padding: 8px 16px;
    gap: 8px;
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 44px;
    overflow: hidden;
}

.search-box.expanded {
    width: 220px;
}

.search-icon {
    width: 18px;
    height: 18px;
    color: var(--gray-500);
    flex-shrink: 0;
}

.search-input {
    border: none;
    background: none;
    outline: none;
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--gray-800);
    width: 0;
    transition: width var(--transition-base);
}

.search-box.expanded .search-input {
    width: 150px;
}

.btn-academy {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--black);
    color: var(--white);
    padding: 10px 22px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-academy:hover {
    background: var(--gray-800);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--black);
    transition: all var(--transition-fast);
    border-radius: 2px;
}

/* ===================== HERO SLIDER ===================== */
.hero-section {
    position: relative;
    height: 92vh;
    min-height: 600px;
    max-height: 900px;
    overflow: hidden;
}

.hero-slider {
    width: 100%;
    height: 100%;
    position: relative;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.8s ease, visibility 0.8s ease;
    display: flex;
    align-items: center;
}

.hero-slide.active {
    opacity: 1;
    visibility: visible;
}

.hero-slide-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transform: scale(1.05);
    transition: transform 8s ease;
}

.hero-slide.active .hero-slide-bg {
    transform: scale(1);
}

/* Fallback if hero slide has no image (e.g. slow load) */
.hero-slide-bg:not([style*="background-image"]) {
    background: linear-gradient(135deg, #1a1a1a 0%, #333 50%, #111 100%);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right,
            rgba(0, 0, 0, 0.82) 0%,
            rgba(0, 0, 0, 0.55) 50%,
            rgba(0, 0, 0, 0.25) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--white);
    max-width: 680px;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 8px 20px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 24px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s 0.3s forwards;
}

.hero-title {
    font-family: var(--font-primary);
    font-size: 3.6rem;
    font-weight: 900;
    line-height: 1.08;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s 0.5s forwards;
}

.hero-title .highlight {
    position: relative;
    display: inline-block;
}

.hero-title .highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--white);
    opacity: 0.3;
    border-radius: 3px;
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.7;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s 0.7s forwards;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 32px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s 0.9s forwards;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s 1.1s forwards;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-family: var(--font-primary);
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1;
}

.stat-suffix {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 700;
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.65);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Slider Controls */
.slider-controls {
    position: absolute;
    bottom: 40px;
    right: 40px;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 16px;
}

.slider-btn {
    width: 48px;
    height: 48px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(8px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--white);
    transition: all var(--transition-fast);
}

.slider-btn:hover {
    background: var(--white);
    color: var(--black);
    border-color: var(--white);
}

.slider-btn svg {
    width: 20px;
    height: 20px;
}

.slider-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    background: transparent;
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.dot.active {
    background: var(--white);
    border-color: var(--white);
    width: 32px;
    border-radius: var(--radius-full);
}

/* ===================== BUTTONS ===================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: var(--radius-full);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition-base);
    text-align: center;
    justify-content: center;
    white-space: nowrap;
}

.btn-primary {
    background: var(--white);
    color: var(--black);
}

.btn-primary:hover {
    background: var(--gray-200);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: var(--white);
    background: transparent;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
}

.btn-black {
    background: var(--black);
    color: var(--white);
}

.btn-black:hover {
    background: var(--gray-800);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-white {
    background: var(--white);
    color: var(--black);
}

.btn-white:hover {
    background: var(--gray-100);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-white {
    border: 2px solid var(--white);
    color: var(--white);
    background: transparent;
}

.btn-outline-white:hover {
    background: var(--white);
    color: var(--black);
}

.btn-outline-black {
    border: 2px solid var(--black);
    color: var(--black);
    background: transparent;
}

.btn-outline-black:hover {
    background: var(--black);
    color: var(--white);
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.05rem;
}

.btn-full {
    width: 100%;
}

/* ===================== QUICK SERVICES BAR ===================== */
.quick-services {
    position: relative;
    z-index: 5;
    margin-top: -50px;
    padding-bottom: 20px;
}

.quick-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.quick-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.quick-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--black);
}

.quick-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    color: var(--black);
}

.quick-icon svg {
    width: 100%;
    height: 100%;
}

.quick-label {
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.95rem;
    flex-grow: 1;
}

.quick-arrow {
    font-size: 1.2rem;
    color: var(--gray-400);
    transition: all var(--transition-fast);
}

.quick-card:hover .quick-arrow {
    color: var(--black);
    transform: translateX(4px);
}

/* ===================== SECTION HEADERS ===================== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--gray-500);
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.6rem;
    font-weight: 800;
    color: var(--black);
    margin-bottom: 16px;
}

.section-divider {
    width: 60px;
    height: 3px;
    background: var(--black);
    margin: 0 auto 20px;
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* ===================== ABOUT ===================== */
.about-section {
    padding: 100px 0;
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-lead {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--black);
    margin-bottom: 16px;
    line-height: 1.6;
}

.about-content p {
    color: var(--gray-600);
    margin-bottom: 16px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 28px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    font-weight: 500;
}

.feature-icon {
    width: 28px;
    height: 28px;
    background: var(--black);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    flex-shrink: 0;
}

.about-visual {
    position: relative;
}

.about-card-stack {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: relative;
}

.about-card {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all var(--transition-base);
}

.about-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--black);
}

.card-number {
    font-family: var(--font-primary);
    font-size: 2.8rem;
    font-weight: 900;
    color: var(--black);
    line-height: 1;
}

.card-text {
    font-size: 0.95rem;
    color: var(--gray-600);
    font-weight: 500;
    line-height: 1.4;
}

.card-1 {
    margin-right: 60px;
}

.card-2 {
    margin-left: 30px;
    margin-right: 30px;
}

.card-3 {
    margin-left: 60px;
}

/* ===================== COURSES ===================== */
.courses-section {
    padding: 100px 0;
    background: var(--gray-50);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.course-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--black);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.course-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--gray-300);
}

.course-card:hover::before {
    transform: scaleX(1);
}

.course-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--black);
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.course-badge.new {
    background: var(--gray-700);
}

.course-icon {
    width: 56px;
    height: 56px;
    color: var(--black);
    margin-bottom: 20px;
}

.course-icon svg {
    width: 100%;
    height: 100%;
}

.course-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--black);
}

.course-desc {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.6;
    margin-bottom: 16px;
}

.course-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
}

.meta-item {
    font-size: 0.8rem;
    color: var(--gray-500);
    font-weight: 500;
}

.course-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--black);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap var(--transition-fast);
}

.course-link:hover {
    gap: 12px;
}

.courses-cta {
    text-align: center;
    margin-top: 48px;
}

.courses-cta .btn-primary {
    background: var(--black);
    color: var(--white);
}

.courses-cta .btn-primary:hover {
    background: var(--gray-800);
}

/* ===================== SERVICES ===================== */
.services-section {
    padding: 100px 0;
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.services-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.services-grid-4 .service-card {
    padding: 32px;
}

.service-card {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 36px;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--black);
    transform: translateY(3px);
    transition: transform var(--transition-base);
}

.service-card:hover {
    background: var(--black);
    color: var(--white);
    border-color: var(--black);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.service-card:hover::after {
    transform: translateY(0);
    background: var(--white);
}

.service-number {
    font-family: var(--font-primary);
    font-size: 2.4rem;
    font-weight: 900;
    color: var(--gray-200);
    line-height: 1;
    margin-bottom: 16px;
    transition: color var(--transition-base);
}

.service-card:hover .service-number {
    color: rgba(255, 255, 255, 0.2);
}

.service-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.service-desc {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.6;
    margin-bottom: 20px;
    transition: color var(--transition-base);
}

.service-card:hover .service-desc {
    color: rgba(255, 255, 255, 0.7);
}

.service-link {
    font-size: 0.9rem;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.service-card:hover .service-link {
    color: var(--white);
}

/* ===================== HERO QUICK LINKS (CARDS) ===================== */
.hero-quick-links-container {
    position: relative;
    margin-top: 0;
    z-index: 10;
    padding: 40px 0;
    margin-bottom: 0;
    background: #fff;
}

.quick-links-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.quick-link-card {
    background: #fff;
    border-radius: 12px;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    text-decoration: none;
    color: var(--black);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.quick-link-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
    border-color: rgba(0, 0, 0, 0.1);
}

.quick-link-card .icon-box {
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quick-link-card .link-text {
    flex: 1;
    font-weight: 700;
    font-size: 0.95rem;
    white-space: nowrap;
}

.quick-link-card .arrow-icon {
    font-size: 20px;
    color: #ccc;
    transition: color 0.3s ease, transform 0.3s ease;
}

.quick-link-card:hover .arrow-icon {
    color: var(--black);
    transform: translateX(4px);
}

@media (max-width: 992px) {
    .quick-links-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .hero-quick-links-container {
        padding: 24px 0;
    }

    .quick-links-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
}

/* ===================== END ===================== */
/* ===================== NEWS ===================== */
.news-section {
    padding: 100px 0;
    background: var(--gray-50);
}

.news-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.news-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.news-card.featured {
    grid-column: 1;
    grid-row: 1 / span 3;
    display: flex;
    flex-direction: column;
}

.news-image {
    height: 280px;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.news-placeholder-img svg {
    width: 120px;
    height: 80px;
}

.news-content {
    padding: 28px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.news-date {
    font-size: 0.8rem;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
    margin-bottom: 10px;
}

.news-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 10px;
    line-height: 1.4;
}

.news-card.featured .news-title {
    font-size: 1.3rem;
}

.news-excerpt {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.6;
    margin-bottom: 16px;
    flex-grow: 1;
}

.news-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--black);
    transition: all var(--transition-fast);
}

.news-link:hover {
    text-decoration: underline;
}

/* ── News image with actual photo ── */
.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ===================== NEWS LISTING PAGE ===================== */
.news-page-section {
    padding: 60px 0 100px;
    background: var(--gray-50);
    min-height: 60vh;
}

.news-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.news-list-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
}

.news-list-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.news-list-card .card-image {
    height: 200px;
    background: var(--gray-100);
    overflow: hidden;
}

.news-list-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s;
}

.news-list-card:hover .card-image img {
    transform: scale(1.05);
}

.news-list-card .card-body {
    padding: 24px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.news-list-card .card-date {
    font-size: 0.78rem;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
    margin-bottom: 8px;
}

.news-list-card .card-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 8px;
    line-height: 1.4;
}

.news-list-card .card-excerpt {
    font-size: 0.88rem;
    color: var(--gray-500);
    line-height: 1.6;
    flex-grow: 1;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-list-card .card-link {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--black);
}

.news-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-400);
    font-size: 1.1rem;
}

/* ===================== ARTICLE PAGE ===================== */
.article-page {
    padding: 40px 0 100px;
    background: var(--white);
}

.article-container {
    max-width: 780px;
    margin: 0 auto;
    padding: 0 20px;
}

.article-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-500);
    text-decoration: none;
    margin-bottom: 28px;
    transition: color 0.2s;
}

.article-back:hover {
    color: var(--black);
}

.article-header {
    margin-bottom: 32px;
}

.article-date {
    font-size: 0.82rem;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
    margin-bottom: 12px;
}

.article-title {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--black);
    line-height: 1.3;
    margin-bottom: 0;
}

.article-cover {
    width: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 36px;
    max-height: 420px;
}

.article-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.article-body {
    font-family: var(--font-body);
    font-size: 1.05rem;
    line-height: 1.85;
    color: #333;
}

.article-body h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 32px 0 12px;
    color: var(--black);
}

.article-body h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 24px 0 10px;
    color: var(--black);
}

.article-body p {
    margin-bottom: 16px;
}

.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    margin: 20px 0;
    display: block;
}

.article-body blockquote {
    border-left: 4px solid var(--black);
    margin: 24px 0;
    padding: 16px 24px;
    background: var(--gray-50);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--gray-600);
}

.article-body ul, .article-body ol {
    padding-left: 24px;
    margin-bottom: 16px;
}

.article-body li {
    margin-bottom: 6px;
}

.article-excerpt-banner {
    font-size: 1.15rem;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--gray-200);
    font-style: italic;
}

@media (max-width: 768px) {
    .news-list {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .article-title {
        font-size: 1.6rem;
    }

    .article-body {
        font-size: 1rem;
    }

    .article-cover {
        max-height: 260px;
    }

    .news-list-card .card-image {
        height: 180px;
    }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .news-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===================== CTA SECTION ===================== */
.cta-section {
    background: var(--black);
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 500px;
    height: 500px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.cta-section::after {
    content: '';
    position: absolute;
    bottom: -150px;
    left: -150px;
    width: 400px;
    height: 400px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: 2.8rem;
    font-weight: 900;
    color: var(--white);
    margin-bottom: 16px;
}

.cta-desc {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.65);
    max-width: 600px;
    margin: 0 auto 36px;
    line-height: 1.7;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* ===================== VERIFY CERTIFICATE ===================== */
.verify-certificate-section {
    padding: 80px 0;
    background: var(--gray-50);
}

.verify-certificate-box {
    max-width: 520px;
    margin: 0 auto;
    padding: 32px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.verify-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.verify-input {
    width: 100%;
    padding: 14px 18px;
    font-size: 1rem;
    font-family: var(--font-body);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    transition: border-color var(--transition-fast);
}

.verify-input:focus {
    outline: none;
    border-color: var(--black);
}

.verify-result {
    margin-top: 20px;
    padding: 16px;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
}

.verify-result-valid {
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
}

.verify-result-invalid {
    background: #fef2f2;
    border: 1px solid #fecaca;
}

.verify-msg { margin: 0 0 8px 0; }
.verify-msg-valid { color: #065f46; font-weight: 600; }
.verify-msg-invalid { color: #991b1b; font-weight: 500; }
.verify-msg-neutral { color: var(--gray-600); }

.verify-details {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid rgba(0,0,0,0.08);
}

.verify-details p {
    margin: 6px 0;
    font-size: 0.9rem;
    color: var(--gray-700);
}

/* ===================== CONTACT ===================== */
.contact-section {
    padding: 100px 0;
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    padding: 24px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.contact-card:hover {
    border-color: var(--black);
    box-shadow: var(--shadow-sm);
}

.contact-icon {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.contact-card h4 {
    font-weight: 700;
    margin-bottom: 6px;
    font-size: 1rem;
}

.contact-card p {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.6;
}

.contact-form-wrapper {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--gray-800);
    background: var(--white);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--black);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08);
}

.form-group textarea {
    resize: vertical;
}

.contact-form .btn-primary {
    background: var(--black);
    color: var(--white);
    border: none;
    font-family: var(--font-primary);
}

.contact-form .btn-primary:hover {
    background: var(--gray-800);
}

/* ===================== FOOTER ===================== */
.main-footer {
    background: var(--black);
    color: var(--white);
    padding: 80px 0 0;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.2fr 2fr;
    gap: 80px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo-img {
    height: 44px;
    width: auto;
    display: block;
    object-fit: contain;
}

.footer-desc {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.55);
    margin-top: 20px;
    line-height: 1.7;
}

.footer-certification {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-top: 20px;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    width: fit-content;
}

.footer-certification .knx-badge {
    height: 50px;
    width: auto;
    display: block;
    border-radius: 4px;
}

.footer-certification .cert-label {
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.65);
    font-weight: 500;
    line-height: 1.4;
}

@media (max-width: 576px) {
    .footer-certification {
        gap: 10px;
        padding: 10px 14px;
    }

    .footer-certification .knx-badge {
        height: 40px;
    }
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 1px;
}

.footer-col a {
    display: block;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 10px;
    transition: all var(--transition-fast);
}

.footer-col a:hover {
    color: var(--white);
    padding-left: 6px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 28px 0;
}

.footer-copy p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.45);
}

.footer-social {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.6);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--white);
    color: var(--black);
    border-color: var(--white);
}

/* ===================== FLOATING BAR ===================== */
.floating-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999;
    background: var(--white);
    border-top: 1px solid var(--gray-200);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
    transform: translateY(100%);
    transition: transform var(--transition-base);
}

.floating-bar.visible {
    transform: translateY(0);
}

.floating-bar-inner {
    max-width: 1240px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
}

.floating-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-600);
    transition: all var(--transition-fast);
}

.floating-item:hover {
    background: var(--gray-100);
    color: var(--black);
}

.floating-item.accent {
    background: var(--black);
    color: var(--white);
}

.floating-item.accent:hover {
    background: var(--gray-800);
}

/* ===================== COURSES PAGE ===================== */
.page-hero {
    background: var(--black);
    color: var(--white);
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.page-hero::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -80px;
    width: 250px;
    height: 250px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.page-hero .breadcrumb {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 16px;
}

.page-hero .breadcrumb a {
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--transition-fast);
}

.page-hero .breadcrumb a:hover {
    color: var(--white);
}

.page-hero h1 {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 16px;
}

.page-hero p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.65);
    max-width: 600px;
    margin: 0 auto;
}

/* Filter Bar */
.filter-bar {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: 20px 0;
    position: sticky;
    top: 76px;
    z-index: 50;
}

.filter-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    /* Increased from 20px */
}

.filter-tabs {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 8px 20px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--gray-600);
    background: var(--gray-100);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-body);
}

.filter-tab.active,
.filter-tab:hover {
    background: var(--black);
    color: var(--white);
}

.filter-search {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--gray-100);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-full);
    padding: 8px 16px;
}

.filter-search input {
    border: none;
    background: none;
    outline: none;
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--gray-800);
    width: 200px;
}

/* All Courses Grid */
.all-courses-section {
    padding: 80px 0;
    background: var(--gray-50);
}

.all-courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.full-course-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.full-course-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.course-card-header {
    background: var(--gray-100);
    padding: 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.course-card-header .course-icon {
    margin-bottom: 0;
    width: 48px;
    height: 48px;
}

.course-category {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: var(--black);
    color: var(--white);
    padding: 4px 12px;
    border-radius: var(--radius-full);
}

.course-card-body {
    padding: 28px;
}

.course-card-body .course-title {
    margin-bottom: 8px;
}

.course-card-body .course-desc {
    margin-bottom: 20px;
}

.course-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 24px;
    padding: 16px;
    background: var(--gray-50);
    border-radius: var(--radius-sm);
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--gray-600);
}

.detail-item strong {
    color: var(--black);
}

.course-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.course-price {
    font-family: var(--font-primary);
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--black);
}

.enroll-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--black);
    color: var(--white);
    padding: 10px 24px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    transition: all var(--transition-base);
}

.enroll-btn:hover {
    background: var(--gray-800);
    transform: translateY(-1px);
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 1024px) {
    .top-bar-left {
        gap: 12px;
    }

    .top-bar-left .top-bar-item {
        display: none;
    }

    .top-bar-offer a {
        font-size: 0.78rem;
    }

    .top-bar-right {
        gap: 12px;
    }

    .header-inner {
        gap: 16px;
    }

    .nav-link {
        padding: 8px 10px;
        font-size: 0.85rem;
    }

    .btn-academy span {
        display: none;
    }

    .btn-academy {
        padding: 10px;
    }

    .hero-title {
        font-size: 2.8rem;
    }

    .hero-stats {
        gap: 24px;
    }

    .about-grid {
        gap: 40px;
    }

    .courses-grid,
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .all-courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .card-1,
    .card-2,
    .card-3 {
        margin: 0;
    }
}

@media (max-width: 768px) {
    .top-bar {
        display: block;
        padding: 6px 0;
    }

    .top-bar-inner {
        flex-direction: column;
        gap: 4px;
        text-align: center;
    }

    .top-bar-left .top-bar-item {
        display: none;
    }

    .top-bar-left {
        justify-content: center;
        gap: 0;
    }

    .top-bar-left .top-bar-offer {
        display: inline-flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 4px;
        font-size: 0.75rem;
    }

    .top-bar-left .top-bar-offer:empty ~ .top-bar-right {
        margin-top: 0;
    }

    .top-bar-right {
        justify-content: center;
        gap: 14px;
        font-size: 0.75rem;
    }

    /* Hide top-bar-left entirely when offer is empty */
    .top-bar-left:not(:has(.top-bar-offer:not(:empty))) {
        display: none;
    }

    .header-inner {
        height: 64px;
    }

    .main-nav {
        display: none;
        position: fixed;
        top: 65px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--gray-200);
        box-shadow: var(--shadow-lg);
        gap: 0;
    }

    .main-nav.open {
        display: flex;
    }

    .nav-link {
        padding: 14px;
        width: 100%;
        border-bottom: 1px solid var(--gray-100);
    }

    .nav-link.active::after {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .search-box {
        display: none;
    }

    .btn-academy span {
        display: none;
    }

    .btn-academy svg {
        display: none;
    }

    .btn-academy::after {
        content: '🎓';
        font-size: 1.2rem;
    }

    .btn-academy {
        padding: 8px 14px;
    }

    .hero-section {
        height: auto;
        min-height: 500px;
        padding: 80px 0 60px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-description {
        font-size: 0.95rem;
    }

    .hero-stats {
        gap: 16px;
        flex-wrap: wrap;
    }

    .stat-number {
        font-size: 1.6rem;
    }

    .slider-controls {
        right: 20px;
        bottom: 20px;
    }

    .quick-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .quick-card {
        padding: 16px;
    }

    .quick-label {
        font-size: 0.85rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-features {
        grid-template-columns: 1fr;
    }

    .courses-grid,
    .services-grid,
    .all-courses-grid {
        grid-template-columns: 1fr;
    }

    .news-grid {
        grid-template-columns: 1fr;
    }

    .news-card.featured {
        grid-column: auto;
        grid-row: auto;
    }

    .cta-title {
        font-size: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-links {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .page-hero {
        padding: 100px 0 60px;
    }

    .page-hero h1 {
        font-size: 2.2rem;
    }

    .filter-inner {
        flex-direction: column;
    }

    .filter-tabs {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .quick-grid {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-stats {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }
}

/* ===================== ANIMATIONS ===================== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Smooth page loading */
body {
    opacity: 0;
    animation: bodyFadeIn 0.5s 0.1s forwards;
}

@keyframes bodyFadeIn {
    to {
        opacity: 1;
    }
}

/* ===================== DYNAMIC COURSE CARDS ===================== */
.dynamic-card {
    cursor: pointer;
}

.course-card-image {
    margin: -32px -32px 20px;
    height: 180px;
    overflow: hidden;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.course-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.course-card:hover .course-card-image img {
    transform: scale(1.05);
}

.course-card-body {
    position: relative;
}

.course-level-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
    background: var(--gray-100);
    color: var(--gray-600);
}

.badge-beginner {
    background: #e8f5e9;
    color: #2e7d32;
}

.badge-intermediate {
    background: #e3f2fd;
    color: #1565c0;
}

.badge-advanced {
    background: #fff3e0;
    color: #e65100;
}

.badge-specialist {
    background: #f3e5f5;
    color: #7b1fa2;
}

.badge-professional {
    background: #fce4ec;
    color: #c62828;
}

.course-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--gray-100);
}

.seats-indicator {
    font-size: 0.8rem;
    font-weight: 600;
}

.seats-available {
    color: #2e7d32;
}

.seats-full {
    color: #c62828;
}

/* ===================== COURSE DETAIL MODAL ===================== */
.course-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    padding: 20px;
}

.course-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.course-modal {
    background: var(--white);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: translateY(30px) scale(0.95);
    transition: transform 0.3s ease;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
}

.course-modal-overlay.active .course-modal {
    transform: translateY(0) scale(1);
}

.modal-close {
    position: sticky;
    top: 16px;
    float: right;
    margin: 16px;
    width: 40px;
    height: 40px;
    border: 1px solid var(--gray-200);
    background: var(--white);
    border-radius: 50%;
    font-size: 1rem;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
}

.modal-close:hover {
    background: var(--black);
    color: var(--white);
    border-color: var(--black);
}

.modal-hero-img {
    height: 250px;
    overflow: hidden;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.modal-hero-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-content-inner {
    padding: 32px 40px 40px;
}

.modal-header-info {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 12px;
}

.modal-category {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--gray-500);
}

.modal-title {
    font-family: var(--font-primary);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--black);
    margin-bottom: 16px;
    line-height: 1.2;
}

.modal-desc {
    font-size: 1rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 28px;
}

.modal-details-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 32px;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    padding: 24px;
}

.modal-detail {
    text-align: center;
}

.detail-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-400);
    margin-bottom: 6px;
}

.detail-value {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--black);
}

.modal-seats {
    font-weight: 700;
}

.modal-section {
    margin-bottom: 28px;
}

.modal-section h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--black);
}

.modal-section p {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.6;
}

/* ── Expandable Modules ── */
.modal-modules {
    margin-bottom: 32px;
}

.modal-modules h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--black);
}

.modules-list {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.module-item {
    border-bottom: 1px solid var(--gray-100);
}

.module-item:last-child {
    border-bottom: none;
}

.module-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    cursor: pointer;
    transition: background var(--transition-fast);
    user-select: none;
}

.module-header:hover {
    background: var(--gray-50);
}

.module-number {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--gray-400);
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.module-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--black);
    flex-grow: 1;
}

.module-lessons-count {
    font-size: 0.75rem;
    color: var(--gray-400);
    white-space: nowrap;
}

.module-chevron {
    font-size: 0.7rem;
    color: var(--gray-400);
    transition: transform 0.2s ease;
}

.module-item.open .module-chevron {
    transform: rotate(180deg);
}

.module-lessons {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: var(--gray-50);
}

.module-item.open .module-lessons {
    max-height: 600px;
}

.lesson-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px 10px 44px;
    font-size: 0.88rem;
    color: var(--gray-600);
    border-top: 1px solid var(--gray-100);
}

.lesson-number {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-400);
    width: 28px;
    flex-shrink: 0;
}

.lesson-name {
    flex-grow: 1;
}

.lesson-lock {
    font-size: 0.7rem;
    opacity: 0.4;
}

.modal-cta {
    margin-top: 8px;
}

.modal-cta .btn-primary {
    background: var(--black);
    color: var(--white);
}

.modal-cta .btn-primary:hover {
    background: var(--gray-800);
}

.modal-cta .btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* ===================== REGISTRATION POPUP ===================== */
.register-popup-overlay {
    position: fixed;
    inset: 0;
    z-index: 2100;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    padding: 20px;
}

.register-popup-overlay.active {
    opacity: 1;
    visibility: visible;
}

.register-popup {
    background: var(--white);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 460px;
    padding: 40px;
    position: relative;
    transform: translateY(20px) scale(0.95);
    transition: transform 0.3s ease;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
}

.register-popup-overlay.active .register-popup {
    transform: translateY(0) scale(1);
}

.popup-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border: 1px solid var(--gray-200);
    background: var(--white);
    border-radius: 50%;
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.popup-close:hover {
    background: var(--black);
    color: var(--white);
    border-color: var(--black);
}

.popup-title {
    font-family: var(--font-primary);
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 4px;
}

.popup-course-name {
    font-size: 0.95rem;
    color: var(--gray-500);
    margin-bottom: 24px;
    font-weight: 500;
}

.register-popup .form-group {
    margin-bottom: 16px;
}

.register-popup .btn-primary {
    background: var(--black);
    color: var(--white);
    margin-top: 8px;
}

.register-popup .btn-primary:hover {
    background: var(--gray-800);
}

.popup-msg {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
    display: none;
}

.popup-msg.success {
    display: block;
    background: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #c8e6c9;
}

.popup-msg.error {
    display: block;
    background: #ffebee;
    color: #c62828;
    border: 1px solid #ffcdd2;
}

/* ===================== RESPONSIVE: MODAL & POPUP ===================== */
@media (max-width: 768px) {
    .course-modal {
        max-height: 95vh;
        border-radius: var(--radius-md);
    }

    .modal-content-inner {
        padding: 24px;
    }

    .modal-title {
        font-size: 1.4rem;
    }

    .modal-details-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        padding: 16px;
    }

    .register-popup {
        padding: 28px;
    }

    .services-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .modal-details-grid {
        grid-template-columns: 1fr;
    }
}

/* ===================== SESSIONS SECTION ===================== */
.sessions-section {
    padding: 80px 0;
    background: var(--gray-50);
}

.sessions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.session-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all var(--transition-base);
}

.session-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--black);
}

.session-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--black);
    color: var(--white);
    width: 70px;
    height: 70px;
    border-radius: 12px;
    flex-shrink: 0;
}

.session-date .day {
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1;
}

.session-date .month {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 500;
    margin-top: 4px;
}

.session-info {
    flex-grow: 1;
}

.session-course {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.3;
}

.session-time {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 0.85rem;
    color: var(--gray-600);
    margin-bottom: 8px;
}

.session-seats {
    font-size: 0.8rem;
}

.seat-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.75rem;
}

.seat-badge.open {
    background: #dcfce7;
    color: #166534;
}

.seat-badge.full {
    background: #fee2e2;
    color: #991b1b;
}


/* ===================== SESSION CARDS (Symmetric & Simple) ===================== */
.sessions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

/* Symmetric Card (Coming Sessions Page) */
.symmetric-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    /* Fixed height equal */
    transition: all 0.3s ease;
    position: relative;
    padding-left: 0;
    /* Reset */
    box-shadow: var(--shadow-sm);
}

.symmetric-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--black);
}

.session-date-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--black);
    color: var(--white);
    padding: 8px 12px;
    border-radius: 8px;
    text-align: center;
    line-height: 1.1;
    z-index: 2;
}

.session-date-badge .day {
    display: block;
    font-size: 1.2rem;
    font-weight: 700;
}

.session-date-badge .month {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
}

.session-card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.session-header {
    margin-bottom: 20px;
    padding-right: 60px;
    /* Space for badge */
}

.course-category-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.session-course-title {
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--black);
}

.session-details-grid {
    display: grid;
    gap: 12px;
    margin-top: auto;
    /* Push to bottom */
    margin-bottom: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--gray-100);
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--gray-600);
}

.detail-item i {
    color: var(--black);
}

/* Simple Card (Home Page) */
.simple-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 10px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all 0.3s ease;
}

.simple-card:hover {
    border-color: var(--black);
    box-shadow: var(--shadow-md);
}

.simple-card-header {
    margin-bottom: 16px;
}

.simple-date {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.simple-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--black);
    line-height: 1.3;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* Mobile/tablet app-like: safe areas and touch targets */
@media (max-width: 1024px) {
    body {
        padding-left: var(--safe-area-left);
        padding-right: var(--safe-area-right);
        padding-bottom: var(--safe-area-bottom);
    }
    .btn,
    .nav-link,
    .quick-link-card,
    .floating-item,
    .hero-buttons .btn {
        min-height: 44px;
        min-width: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
}