/* --- 1. RESET & VARIABLES --- */
:root {
    --primary: #0066FF;
    --primary-hover: #0052CC;
    --primary-light: #EFF6FF;
    --dark: #0F172A;
    --text-main: #334155;
    --text-light: #64748B;
    --bg-body: #F8FAFC;
    --white: #ffffff;
    --glass: rgba(255, 255, 255, 0.85);
    --border-light: #F1F5F9;
    
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 10px 30px -5px rgba(0, 102, 255, 0.4);
    
    --font: 'Plus Jakarta Sans', sans-serif;
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font);
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s var(--ease);
}

ul {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    font-family: var(--font);
    transition: all 0.3s var(--ease);
}

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

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

/* --- 2. UTILITY CLASSES --- */
.section {
    padding: 100px 0;
}

.bg-soft {
    background: #F1F5F9;
}

.text-yellow {
    color: #F59E0B;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, #00C6FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Scroll Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s var(--ease);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 {
    transition-delay: 0.15s;
}

.delay-2 {
    transition-delay: 0.3s;
}

/* --- 3. NAVBAR (Premium Glass) --- */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: all 0.3s var(--ease);
}

.nav-wrapper {
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    font-size: 22px;
    color: var(--dark);
    transition: transform 0.3s var(--ease);
}

.brand:hover {
    transform: translateX(3px);
}

.brand-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s var(--ease-bounce);
}

.brand:hover .brand-icon {
    transform: scale(1.1) rotate(5deg);
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    font-weight: 600;
    color: var(--text-light);
    font-size: 15px;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s var(--ease);
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.login-link {
    font-weight: 700;
    color: var(--dark);
}

.login-link:hover {
    color: var(--primary);
}

/* Buttons */
.btn-primary {
    background: var(--primary);
    color: white;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.25);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 102, 255, 0.35);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary.small {
    padding: 10px 20px;
    font-size: 14px;
}

.btn-primary.large {
    padding: 16px 40px;
    font-size: 16px;
}

.btn-primary.full {
    width: 100%;
}

.btn-secondary {
    background: white;
    border: 1px solid #E2E8F0;
    color: var(--text-main);
    padding: 16px 40px;
    border-radius: 50px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.btn-secondary.large {
    padding: 16px 40px;
    font-size: 16px;
}

.btn-outline {
    background: transparent;
    border: 1px solid #CBD5E1;
    color: var(--text-main);
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 600;
}

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

.btn-outline.small {
    padding: 8px 16px;
    font-size: 14px;
}

.btn-outline.full {
    width: 100%;
    text-align: center;
    padding: 12px 20px;
}

.shadow-glow {
    box-shadow: var(--shadow-glow);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.bar {
    width: 24px;
    height: 2px;
    background: var(--dark);
    transition: all 0.3s var(--ease);
    border-radius: 2px;
}

.menu-toggle.open .top {
    transform: rotate(45deg) translate(6px, 6px);
}

.menu-toggle.open .mid {
    opacity: 0;
}

.menu-toggle.open .bot {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Menu Dropdown */
.mobile-menu {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: white;
    border-bottom: 1px solid var(--border-light);
    padding: 20px;
    transform: translateY(-150%);
    transition: transform 0.4s var(--ease);
    z-index: 999;
    box-shadow: var(--shadow-md);
}

.mobile-menu.open {
    transform: translateY(0);
}

.mobile-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.m-link {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 8px;
    transition: all 0.3s var(--ease);
}

.m-link:hover {
    background: var(--primary-light);
    color: var(--primary);
    transform: translateX(5px);
}

.mobile-btns {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* --- 4. HERO SECTION --- */
.hero {
    padding-top: 160px;
    padding-bottom: 100px;
    overflow: hidden;
}

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

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary-light);
    color: var(--primary);
    padding: 8px 18px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 24px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(0, 102, 255, 0.4);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(0, 102, 255, 0);
    }
}

.dot {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    display: block;
    animation: blink 1.5s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.3;
    }
}

.hero-text h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.1;
    margin-bottom: 20px;
    color: var(--dark);
    letter-spacing: -1px;
    font-weight: 800;
}

.hero-text p {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 32px;
    max-width: 540px;
    line-height: 1.7;
}

.hero-btns {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.trust-strip {
    display: flex;
    align-items: center;
    gap: 15px;
}

.avatars {
    display: flex;
}

.avatars img {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 3px solid white;
    margin-left: -14px;
    transition: transform 0.3s var(--ease);
}

.avatars img:first-child {
    margin-left: 0;
}

.avatars img:hover {
    transform: translateY(-5px) scale(1.1);
    z-index: 10;
}

.trust-text {
    font-size: 14px;
    color: var(--text-main);
}

.trust-text strong {
    font-size: 16px;
    color: var(--dark);
}

/* Hero Graphic (Orbit) */
.orbit-container {
    width: 450px;
    height: 450px;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto;
}

.center-logo {
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, var(--primary), #00C6FF);
    border-radius: 50%;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    z-index: 10;
    box-shadow: 0 15px 40px rgba(0, 102, 255, 0.3);
    animation: float 3s ease-in-out infinite;
}

.ring {
    position: absolute;
    border-radius: 50%;
    border: 1px dashed rgba(0, 102, 255, 0.2);
}

.ring-1 {
    width: 200px;
    height: 200px;
    animation: spin 20s linear infinite;
}

.ring-2 {
    width: 320px;
    height: 320px;
    animation: spin 30s linear infinite reverse;
}

.ring-3 {
    width: 440px;
    height: 440px;
    animation: spin 40s linear infinite;
}

.float-icon {
    position: absolute;
    width: 56px;
    height: 56px;
    background: white;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    box-shadow: var(--shadow-md);
    animation: float 4s ease-in-out infinite;
    transition: transform 0.3s var(--ease);
}

.float-icon:hover {
    transform: scale(1.15) translateY(-5px);
}

.icon-1 {
    top: 10%;
    left: 20%;
    color: #61DAFB;
}

.icon-2 {
    bottom: 15%;
    right: 15%;
    color: #3776AB;
    animation-delay: 1s;
}

.icon-3 {
    top: 15%;
    right: 10%;
    color: #F7DF1E;
    animation-delay: 2s;
}

.icon-4 {
    bottom: 20%;
    left: 10%;
    color: #FF9900;
    animation-delay: 1.5s;
}

/* Animations */
@keyframes spin {
    100% {
        transform: rotate(360deg);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* --- 5. FEATURES & PROGRAMS --- */
.section-head {
    margin-bottom: 50px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.section-head.center {
    text-align: center;
    flex-direction: column;
    align-items: center;
}

.sub-head {
    color: var(--primary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 1.5px;
    display: block;
    margin-bottom: 10px;
}

.section-head h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--dark);
    font-weight: 800;
}

.view-all {
    color: var(--primary);
    font-weight: 700;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s var(--ease);
}

.view-all:hover {
    gap: 12px;
}

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

/* Feature Cards */
.feature-card {
    background: white;
    padding: 36px;
    border-radius: 20px;
    border: 1px solid var(--border-light);
    transition: all 0.4s var(--ease);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: #E2E8F0;
}

.icon-box {
    width: 60px;
    height: 60px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 24px;
    transition: transform 0.3s var(--ease-bounce);
}

.feature-card:hover .icon-box {
    transform: scale(1.1) rotate(5deg);
}

.blue {
    background: var(--primary-light);
    color: var(--primary);
}

.purple {
    background: #F5F3FF;
    color: #8B5CF6;
}

.orange {
    background: #FFF7ED;
    color: #F97316;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--dark);
    font-weight: 700;
}

.feature-card p {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.6;
}

/* Course Cards */
.course-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: all 0.4s var(--ease);
}

.course-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.card-img {
    height: 200px;
    position: relative;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 56px;
    transition: transform 0.3s var(--ease);
}

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

.gradient-1 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.gradient-2 {
    background: linear-gradient(135deg, #2af598 0%, #009efd 100%);
}

.gradient-3 {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
}

.badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: white;
    color: var(--dark);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    box-shadow: var(--shadow-sm);
}

.card-body {
    padding: 28px;
}

.card-body h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--dark);
    font-weight: 700;
}

.desc {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.meta {
    display: flex;
    gap: 20px;
    font-size: 14px;
    color: #94A3B8;
    margin-bottom: 24px;
}

.meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
}

.price {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
}

/* Stats Section */
.stats-section {
    background: linear-gradient(135deg, var(--primary) 0%, #00C6FF 100%);
    padding: 80px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

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

.stat-number {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 16px;
    opacity: 0.9;
}

/* --- 6. FOOTER (Enhanced Professional Design) --- */
.footer {
    background: var(--dark);
    color: white;
    padding: 80px 0 30px;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 50px;
    margin-bottom: 60px;
}

.footer-brand .brand {
    margin-bottom: 20px;
}

.footer-brand .brand span {
    color: white;
}

.footer-brand p {
    color: #94A3B8;
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 24px;
    max-width: 320px;
}

.socials {
    display: flex;
    gap: 12px;
}

.socials a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    color: white;
    font-size: 18px;
    transition: all 0.3s var(--ease);
}

.socials a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-links h4,
.footer-newsletter h4 {
    font-size: 18px;
    margin-bottom: 24px;
    color: white;
    font-weight: 700;
}

.footer-links a {
    display: block;
    color: #94A3B8;
    margin-bottom: 14px;
    font-size: 15px;
    transition: all 0.3s var(--ease);
}

.footer-links a:hover {
    color: white;
    padding-left: 8px;
}

.newsletter-text {
    color: #94A3B8;
    font-size: 14px;
    margin-bottom: 16px;
    line-height: 1.6;
}

.news-form {
    display: flex;
    gap: 8px;
}

.news-form input {
    flex: 1;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 12px 16px;
    border-radius: 10px;
    color: white;
    font-size: 14px;
    transition: all 0.3s var(--ease);
}

.news-form input:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.12);
}

.news-form input::placeholder {
    color: #64748B;
}

.news-form button {
    background: var(--primary);
    color: white;
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.3s var(--ease);
}

.news-form button:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #64748B;
    font-size: 14px;
    flex-wrap: wrap;
    gap: 20px;
}

.legal {
    display: flex;
    gap: 24px;
}

.legal a {
    color: #64748B;
    transition: color 0.3s var(--ease);
}

.legal a:hover {
    color: var(--primary);
}

/* --- 7. RESPONSIVE DESIGN --- */

@media (max-width: 1024px) {
    .container {
        padding: 0 32px;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 80px;
    }

    .hero-text {
        max-width: 700px;
        margin: 0 auto;
    }

    .hero-text p {
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
        margin-bottom: 32px;
    }

    .hero-btns,
    .trust-strip {
        justify-content: center;
    }

    .orbit-container {
        transform: scale(0.85);
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }

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

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }

    .nav-links,
    .nav-actions {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .hero {
        padding-top: 120px;
        padding-bottom: 60px;
    }

    .hero-text h1 {
        font-size: 2.25rem;
    }

    .hero-text p {
        font-size: 1rem;
    }

    .hero-btns {
        flex-direction: column;
        width: 100%;
        max-width: 400px;
        margin: 0 auto 30px;
    }

    .btn-primary.large,
    .btn-secondary.large {
        width: 100%;
        justify-content: center;
        padding: 14px 32px;
    }

    .grid-3 {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .orbit-container {
        transform: scale(0.65);
        height: 320px;
        width: 320px;
    }

    .section-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .section-head h2 {
        font-size: 1.75rem;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .footer {
        padding: 60px 0 24px;
    }

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

    .footer-brand p {
        max-width: 100%;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }

    .legal {
        flex-direction: column;
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 20px;
    }

    .navbar {
        height: 70px;
    }

    .brand {
        font-size: 20px;
    }

    .brand-icon {
        width: 32px;
        height: 32px;
    }

    .hero {
        padding-top: 100px;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .status-pill {
        font-size: 12px;
        padding: 6px 14px;
    }

    .trust-strip {
        flex-direction: column;
        gap: 12px;
    }

    .avatars img {
        width: 40px;
        height: 40px;
    }

    .feature-card,
    .course-card {
        border-radius: 16px;
    }

    .feature-card {
        padding: 24px;
    }

    .card-body {
        padding: 20px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .orbit-container {
        transform: scale(0.5);
        height: 280px;
        width: 280px;
    }

    .float-icon {
        width: 48px;
        height: 48px;
        font-size: 22px;
    }
}

/* --- 8. SMOOTH SCROLL & PERFORMANCE --- */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Loading State */
body.loading * {
    transition: none !important;
}