/* ================================================
   CAREER EDGE IT INSTITUTE — DATA SCIENCE COURSE
   Modern, Responsive, SEO-Optimized Styles
   ================================================ */

/* ====== CSS CUSTOM PROPERTIES ====== */
:root {
    /* Primary Palette */
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --primary-lighter: #dbeafe;

    /* Accent */
    --accent: #06b6d4;
    --accent-dark: #0891b2;

    /* Gradients */
    --gradient: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
    --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #0e7490 100%);
    --gradient-card: linear-gradient(135deg, #eff6ff 0%, #f0fdfa 100%);

    /* Text */
    --text-dark: #0f172a;
    --text: #334155;
    --text-light: #64748b;
    --text-lighter: #94a3b8;

    /* Backgrounds */
    --bg: #f8fafc;
    --bg-light: #f1f5f9;
    --white: #ffffff;

    /* Borders & Shadows */
    --border: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow: 0 4px 15px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 50px rgba(0,0,0,0.12);
    --shadow-blue: 0 8px 30px rgba(37,99,235,0.3);

    /* Functional */
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --whatsapp: #25d366;

    /* Radius */
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 20px;
    --radius-full: 50px;

    /* Transition */
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;

    /* Font */
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ====== RESET & BASE ====== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    overflow-x: hidden;
}

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

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

ul { list-style: none; }

/* ====== UTILITIES ====== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 100px 0;
}

.text-gradient {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.required { color: var(--error); }

/* Section Header */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    background: var(--primary-lighter);
    color: var(--primary);
    font-size: 0.82rem;
    font-weight: 600;
    padding: 6px 18px;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-dark);
    line-height: 1.2;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-light);
    line-height: 1.8;
}

.section-desc strong {
    color: var(--text);
}

/* ====== BUTTONS ====== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: var(--shadow-blue);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(37,99,235,0.4);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-outline-white {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.4);
}

.btn-outline-white:hover {
    background: var(--white);
    color: var(--primary);
    border-color: var(--white);
    transform: translateY(-2px);
}

.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-sm { padding: 10px 24px; font-size: 0.88rem; }
.btn-full { width: 100%; }

/* ====== NAVBAR ====== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow);
    padding: 10px 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.35rem;
    color: var(--white);
    font-weight: 400;
    z-index: 1001;
}

.logo strong { font-weight: 800; }
.logo-icon { font-size: 1.5rem; color: var(--accent); }

.navbar.scrolled .logo { color: var(--text-dark); }

/* Nav Links */
.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    color: rgba(255,255,255,0.85);
    font-size: 0.88rem;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: var(--radius-full);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--white);
    background: rgba(255,255,255,0.15);
}

.navbar.scrolled .nav-link { color: var(--text); }

.navbar.scrolled .nav-link:hover,
.navbar.scrolled .nav-link.active {
    color: var(--primary);
    background: var(--primary-lighter);
}

.nav-cta {
    padding: 10px 24px;
    font-size: 0.88rem;
}

.navbar.scrolled .nav-cta { box-shadow: var(--shadow-blue); }

/* Hamburger */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.menu-toggle .bar {
    width: 26px;
    height: 3px;
    background: var(--white);
    border-radius: 3px;
    transition: var(--transition);
}

.navbar.scrolled .menu-toggle .bar { background: var(--text-dark); }

.menu-toggle.active .bar:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
.menu-toggle.active .bar:nth-child(2) { opacity: 0; }
.menu-toggle.active .bar:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }

/* ====== HERO SECTION ====== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-hero);
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero-deco {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.hero-circle-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(6,182,212,0.12), transparent 70%);
    top: -200px;
    right: -150px;
}

.hero-circle-2 {
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, rgba(37,99,235,0.15), transparent 70%);
    bottom: -150px;
    left: -100px;
}

.hero-dots {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255,255,255,0.06) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 880px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    color: var(--accent);
    font-size: 0.82rem;
    font-weight: 600;
    padding: 8px 20px;
    border-radius: var(--radius-full);
    margin-bottom: 28px;
    backdrop-filter: blur(8px);
}

.hero-badge i { color: var(--warning); }

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1.12;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.72);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.hero-subtitle strong { color: var(--white); }

.hero-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

/* Hero Stats */
.hero-stats {
    display: inline-flex;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
    justify-content: center;
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(12px);
    padding: 28px 40px;
    border-radius: var(--radius-lg);
}

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--white);
}

.stat-label {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.55);
    font-weight: 500;
}

.stat-label i { color: var(--warning); font-size: 0.72rem; }

.stat-divider {
    width: 1px;
    height: 50px;
    background: rgba(255,255,255,0.12);
}

/* ====== ABOUT COURSE ====== */
.about-course { background: var(--white); }

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image { position: relative; }

.about-img-wrapper {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-img-wrapper img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    transition: var(--transition-slow);
}

.about-img-wrapper:hover img { transform: scale(1.03); }

/* Placement Badge */
.placement-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--gradient);
    color: var(--white);
    padding: 20px 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 14px;
}

.placement-badge i { font-size: 2rem; opacity: 0.9; }
.badge-number { display: block; font-size: 1.8rem; font-weight: 800; line-height: 1; }
.badge-text { font-size: 0.72rem; font-weight: 500; opacity: 0.9; line-height: 1.3; }

.about-content .section-title { text-align: left; }

.about-text {
    color: var(--text);
    margin-bottom: 14px;
    line-height: 1.8;
}

.about-text strong { color: var(--text-dark); }

.about-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin: 28px 0 32px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.93rem;
    font-weight: 500;
    color: var(--text-dark);
}

.highlight-item i { color: var(--success); font-size: 1.05rem; }

.about-btn-group {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

/* ====== CURRICULUM / MODULES ====== */
.curriculum { background: var(--bg); }

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

.module-card {
    background: var(--white);
    padding: 32px 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.module-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-lighter);
}

.module-number {
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-lighter);
    line-height: 1;
    opacity: 0.6;
}

.module-icon {
    width: 52px;
    height: 52px;
    background: var(--primary-lighter);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    font-size: 1.3rem;
    margin-bottom: 18px;
    transition: var(--transition);
}

.module-card:hover .module-icon {
    background: var(--gradient);
    color: var(--white);
}

.module-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.module-desc {
    font-size: 0.88rem;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 16px;
}

.module-desc strong { color: var(--text); }

.module-topics {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.module-topics li {
    font-size: 0.82rem;
    color: var(--text);
    font-weight: 500;
    padding-left: 18px;
    position: relative;
}

.module-topics li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
}

/* ====== PLACEMENT ASSISTANCE ====== */
.placement {
    background: var(--white);
    position: relative;
}

.placement::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient);
}

.placement-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 50px;
}

.placement-step {
    text-align: center;
    position: relative;
}

.step-icon {
    width: 72px;
    height: 72px;
    background: var(--primary-lighter);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.4rem;
    margin: 0 auto 16px;
    transition: var(--transition);
    position: relative;
    z-index: 2;
}

.placement-step:hover .step-icon {
    background: var(--gradient);
    color: var(--white);
    transform: scale(1.1);
}

/* Connecting line between steps */
.step-line {
    position: absolute;
    top: 36px;
    left: calc(50% + 40px);
    width: calc(100% - 80px);
    height: 2px;
    background: var(--border);
    z-index: 1;
}

.placement-step:last-child .step-line { display: none; }

.placement-step h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.placement-step p {
    font-size: 0.85rem;
    color: var(--text-light);
    line-height: 1.6;
    padding: 0 8px;
}

/* Placement Stats */
.placement-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.pstat-card {
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px 20px;
    text-align: center;
    transition: var(--transition);
}

.pstat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-lighter);
}

.pstat-card i {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 12px;
}

.pstat-number {
    display: block;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.pstat-label {
    font-size: 0.82rem;
    color: var(--text-light);
    font-weight: 500;
}

/* ====== TOOLS & TECHNOLOGIES ====== */
.tools { background: var(--bg); }

.tools-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.tool-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 16px;
    text-align: center;
    transition: var(--transition);
}

.tool-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-lighter);
}

.tool-card i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 12px;
    transition: var(--transition);
}

.tool-card:hover i {
    color: var(--accent);
    transform: scale(1.15);
}

.tool-card span {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-dark);
}

/* ====== WHY CHOOSE US ====== */
.why-us { background: var(--white); }

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

.feature-card {
    padding: 36px 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: var(--bg);
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-lighter);
    background: var(--white);
}

.feature-icon {
    width: 68px;
    height: 68px;
    background: var(--primary-lighter);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.4rem;
    margin: 0 auto 20px;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    background: var(--gradient);
    color: var(--white);
    transform: scale(1.1);
}

.feature-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.feature-desc {
    font-size: 0.88rem;
    color: var(--text-light);
    line-height: 1.7;
}

.feature-desc strong { color: var(--text); }

/* ====== TESTIMONIALS ====== */
.testimonials { background: var(--bg); }

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    background: var(--white);
    padding: 36px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.testimonial-stars {
    display: flex;
    gap: 3px;
    margin-bottom: 18px;
}

.testimonial-stars i { color: var(--warning); font-size: 0.88rem; }

.testimonial-text {
    font-size: 0.93rem;
    color: var(--text);
    line-height: 1.8;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-text strong { color: var(--text-dark); font-style: normal; }

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
}

.testimonial-author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-lighter);
}

.author-name {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-dark);
}

.author-role {
    font-size: 0.8rem;
    color: var(--primary);
    font-weight: 500;
}

/* ====== FAQ SECTION ====== */
.faq { background: var(--white); }

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.faq-item {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item.active {
    border-color: var(--primary-lighter);
    box-shadow: var(--shadow);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: var(--font);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-dark);
    transition: var(--transition);
}

.faq-question:hover { color: var(--primary); }

.faq-icon {
    font-size: 0.8rem;
    color: var(--text-lighter);
    transition: var(--transition);
    min-width: 16px;
    text-align: center;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
    color: var(--primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}

.faq-answer p {
    padding: 0 24px 20px;
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.8;
}

.faq-answer strong { color: var(--text); }

/* ====== CONTACT SECTION ====== */
.contact { background: var(--bg); }

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

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

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    font-family: var(--font);
    font-size: 0.95rem;
    padding: 14px 18px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: var(--white);
    color: var(--text-dark);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37,99,235,0.1);
}

.form-group input.error,
.form-group textarea.error {
    border-color: var(--error);
    box-shadow: 0 0 0 4px rgba(239,68,68,0.08);
}

.form-group textarea { resize: vertical; min-height: 100px; }

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.error-message {
    font-size: 0.8rem;
    color: var(--error);
    font-weight: 500;
    min-height: 18px;
}

.form-note {
    font-size: 0.8rem;
    color: var(--text-lighter);
    text-align: center;
    margin-top: -4px;
}

.form-note i { color: var(--success); margin-right: 4px; }

/* Success Message */
.form-success {
    display: none;
    text-align: center;
    padding: 60px 30px;
}

.form-success.show { display: block; }

.form-success i {
    font-size: 3.5rem;
    color: var(--success);
    margin-bottom: 16px;
}

.form-success h3 {
    font-size: 1.4rem;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.form-success p {
    color: var(--text-light);
    line-height: 1.7;
}

/* Contact Info */
.contact-info-card {
    display: flex;
    flex-direction: column;
    gap: 24px;
    background: var(--white);
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    margin-bottom: 24px;
}

.contact-info-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: var(--primary-lighter);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    font-size: 1.05rem;
}

.contact-info-item h4 {
    font-size: 0.93rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 3px;
}

.contact-info-item p {
    font-size: 0.88rem;
    color: var(--text-light);
    line-height: 1.6;
}

.contact-info-item a { color: var(--primary); font-weight: 500; }
.contact-info-item a:hover { color: var(--primary-dark); text-decoration: underline; }

.map-wrapper {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

/* ====== FOOTER ====== */
.footer {
    background: var(--text-dark);
    color: rgba(255,255,255,0.65);
    padding: 70px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    color: var(--white);
    font-weight: 400;
    margin-bottom: 18px;
}

.footer-logo strong { font-weight: 800; }

.footer-desc {
    font-size: 0.88rem;
    line-height: 1.8;
    margin-bottom: 24px;
}

.footer-desc strong { color: var(--white); }

.social-links { display: flex; gap: 10px; }

.social-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.06);
    border-radius: var(--radius-sm);
    color: rgba(255,255,255,0.65);
    font-size: 0.92rem;
    transition: var(--transition);
}

.social-icon:hover {
    background: var(--gradient);
    color: var(--white);
    transform: translateY(-3px);
}

.footer-heading {
    font-size: 1.02rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 24px;
}

.footer-links li { margin-bottom: 12px; }

.footer-links a {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.55);
}

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

.footer-contact li {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 0.88rem;
    line-height: 1.6;
}

.footer-contact li i {
    color: var(--accent);
    margin-top: 4px;
    min-width: 16px;
}

.footer-contact a { color: rgba(255,255,255,0.55); }
.footer-contact a:hover { color: var(--accent); }

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.35);
}

/* ====== FLOATING BUTTONS ====== */
.floating-btn {
    position: fixed;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.whatsapp-btn {
    bottom: 28px;
    right: 28px;
    width: 60px;
    height: 60px;
    background: var(--whatsapp);
    color: var(--white);
    font-size: 1.7rem;
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(37,211,102,0.4);
}

.call-btn {
    bottom: 100px;
    right: 32px;
    width: 52px;
    height: 52px;
    background: var(--primary);
    color: var(--white);
    font-size: 1.15rem;
}

.call-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-blue);
}

.back-to-top {
    bottom: 164px;
    right: 34px;
    width: 44px;
    height: 44px;
    background: var(--white);
    color: var(--text-dark);
    font-size: 0.92rem;
    border: 2px solid var(--border);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

/* ====== FADE-IN ANIMATION ====== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger delays */
.modules-grid .fade-in:nth-child(2) { transition-delay: 0.1s; }
.modules-grid .fade-in:nth-child(3) { transition-delay: 0.2s; }
.modules-grid .fade-in:nth-child(4) { transition-delay: 0.3s; }
.modules-grid .fade-in:nth-child(5) { transition-delay: 0.4s; }
.modules-grid .fade-in:nth-child(6) { transition-delay: 0.5s; }

.tools-grid .fade-in:nth-child(2) { transition-delay: 0.05s; }
.tools-grid .fade-in:nth-child(3) { transition-delay: 0.1s; }
.tools-grid .fade-in:nth-child(4) { transition-delay: 0.15s; }
.tools-grid .fade-in:nth-child(5) { transition-delay: 0.2s; }
.tools-grid .fade-in:nth-child(6) { transition-delay: 0.25s; }
.tools-grid .fade-in:nth-child(7) { transition-delay: 0.3s; }
.tools-grid .fade-in:nth-child(8) { transition-delay: 0.35s; }
.tools-grid .fade-in:nth-child(9) { transition-delay: 0.4s; }
.tools-grid .fade-in:nth-child(10) { transition-delay: 0.45s; }
.tools-grid .fade-in:nth-child(11) { transition-delay: 0.5s; }
.tools-grid .fade-in:nth-child(12) { transition-delay: 0.55s; }

.features-grid .fade-in:nth-child(2) { transition-delay: 0.1s; }
.features-grid .fade-in:nth-child(3) { transition-delay: 0.2s; }
.features-grid .fade-in:nth-child(4) { transition-delay: 0.3s; }
.features-grid .fade-in:nth-child(5) { transition-delay: 0.4s; }
.features-grid .fade-in:nth-child(6) { transition-delay: 0.5s; }

.testimonials-grid .fade-in:nth-child(2) { transition-delay: 0.15s; }
.testimonials-grid .fade-in:nth-child(3) { transition-delay: 0.3s; }

/* ====== RESPONSIVE ====== */

/* Tablet */
@media (max-width: 1024px) {
    .section-title { font-size: 2.1rem; }
    .hero-title { font-size: 2.8rem; }
    .about-grid { gap: 40px; }
    .modules-grid { grid-template-columns: repeat(2, 1fr); }
    .placement-steps { grid-template-columns: repeat(2, 1fr); }
    .step-line { display: none; }
    .placement-stats { grid-template-columns: repeat(2, 1fr); }
    .tools-grid { grid-template-columns: repeat(4, 1fr); }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonials-grid .testimonial-card:last-child {
        grid-column: 1 / -1;
        max-width: 500px;
        margin: 0 auto;
    }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
}

/* Mobile Large */
@media (max-width: 768px) {
    .section { padding: 70px 0; }
    .section-header { margin-bottom: 40px; }
    .section-title { font-size: 1.85rem; }

    /* Mobile Nav */
    .menu-toggle { display: flex; }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        align-items: stretch;
        padding: 100px 24px 30px;
        gap: 4px;
        box-shadow: -5px 0 30px rgba(0,0,0,0.1);
        transition: right 0.35s ease;
    }

    .nav-links.open { right: 0; }

    .nav-link {
        color: var(--text) !important;
        padding: 14px 16px;
        border-radius: var(--radius);
        font-size: 1rem;
    }

    .nav-link:hover,
    .nav-link.active {
        background: var(--primary-lighter) !important;
        color: var(--primary) !important;
    }

    .nav-cta { display: none; }

    .nav-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.5);
        z-index: 999;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-overlay.show { opacity: 1; visibility: visible; }

    /* Hero */
    .hero { padding: 100px 0 60px; min-height: auto; }
    .hero-title { font-size: 2.1rem; }
    .hero-subtitle { font-size: 1rem; }
    .hero-stats { gap: 24px; padding: 24px 20px; }
    .stat-number { font-size: 1.5rem; }
    .stat-divider { height: 36px; }

    /* About */
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .about-img-wrapper img { height: 350px; }
    .placement-badge { bottom: -10px; right: -10px; padding: 16px 20px; }
    .badge-number { font-size: 1.5rem; }
    .about-content .section-title { text-align: center; }
    .about-text { text-align: center; }
    .about-btn-group { justify-content: center; }

    /* Curriculum */
    .modules-grid { grid-template-columns: 1fr; max-width: 450px; margin: 0 auto; }

    /* Placement */
    .placement-steps { grid-template-columns: 1fr; max-width: 350px; margin: 0 auto 40px; }
    .placement-stats { grid-template-columns: 1fr 1fr; }

    /* Tools */
    .tools-grid { grid-template-columns: repeat(3, 1fr); }

    /* Features */
    .features-grid { grid-template-columns: 1fr; max-width: 450px; margin: 0 auto; }

    /* Testimonials */
    .testimonials-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
    .testimonials-grid .testimonial-card:last-child { max-width: none; }

    /* Contact */
    .contact-grid { grid-template-columns: 1fr; gap: 40px; }
    .form-row { grid-template-columns: 1fr; }

    /* Footer */
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }

    /* Floating */
    .call-btn { right: 24px; bottom: 92px; width: 48px; height: 48px; }
    .back-to-top { right: 26px; bottom: 152px; width: 40px; height: 40px; }
    .whatsapp-btn { right: 20px; bottom: 20px; width: 56px; height: 56px; font-size: 1.5rem; }
}

/* Mobile Small */
@media (max-width: 480px) {
    .hero-title { font-size: 1.75rem; }
    .hero-buttons { flex-direction: column; }
    .hero-buttons .btn { width: 100%; }
    .hero-stats { flex-direction: column; gap: 20px; }
    .stat-divider { width: 50px; height: 1px; }
    .about-highlights { grid-template-columns: 1fr; }
    .about-btn-group { flex-direction: column; }
    .about-btn-group .btn { width: 100%; }
    .placement-stats { grid-template-columns: 1fr; }
    .tools-grid { grid-template-columns: repeat(2, 1fr); }
    .btn-lg { padding: 14px 28px; font-size: 0.95rem; }
}