/* Design System & Variables */
:root {
    --primary: #050505; /* Black atmospheric deeper look */
    --accent: #D41A1A; /* Premium Artistic Red */
    --accent-glow: rgba(212, 26, 26, 0.4);
    --text: #FFFFFF;
    --text-muted: #888888;
    --bg-alt: #0C0C0C;
    --glass: rgba(255, 255, 255, 0.015);
    --glass-border: rgba(255, 255, 255, 0.08);
    --radius: 2px; /* Sharp technical geometry */
    --transition: all 0.7s cubic-bezier(0.23, 1, 0.32, 1); /* Elite motion */
    --container: 1300px;
    --letter-spacing: 0.1rem;
}

/* Reset & Global */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--primary);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    letter-spacing: 0.01rem;
}

h1, h2, h3, h4, .logo {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    letter-spacing: -0.01em;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-subtitle {
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.2rem;
    font-size: 0.8rem;
    font-weight: 600;
}

.section-title {
    font-size: 2.5rem;
    margin-top: 0.5rem;
    position: relative;
}

.bg-alt {
    background-color: var(--bg-alt);
}

section {
    padding: 100px 0;
}

html, body {
    overflow-x: hidden;
    width: 100%;
}

#loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #0a0a0a;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    transition: opacity 1s cubic-bezier(0.19, 1, 0.22, 1), 
                visibility 1s,
                pointer-events 1s;
}

#loader.fade-out {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
}

.loader-logo-container {
    width: 140px;
    height: 140px;
}

.loader-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    animation: loaderPulse 2s infinite ease-in-out;
}

.loader-progress {
    width: 200px;
    height: 2px;
    background: rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
    border-radius: 1px;
}

.loader-progress-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background: var(--accent);
    box-shadow: 0 0 15px var(--accent-glow);
    animation: loaderFill 3s cubic-bezier(0.65, 0, 0.35, 1) forwards;
}

@keyframes loaderPulse {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.05); opacity: 1; }
}

@keyframes loaderFill {
    from { width: 0; }
    to { width: 100%; }
}

/* Navigation */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    padding: 1.5rem 0;
    transition: var(--transition);
}

#navbar.scrolled {
    background: rgba(18, 18, 18, 0.9);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

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

.logo {
    font-size: 1.5rem;
    letter-spacing: 0.1rem;
    font-weight: 700;
}

.logo span {
    color: var(--accent);
    margin-left: 0.3rem;
    font-weight: 300;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    transition: var(--transition);
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 400;
    opacity: 0.8;
}

.nav-links a:hover {
    opacity: 1;
    color: var(--accent);
}

.btn-nav {
    background: var(--accent);
    color: white !important;
    padding: 0.7rem 1.8rem;
    border-radius: var(--radius);
    font-weight: 600 !important;
    opacity: 1 !important;
    letter-spacing: 0.05rem;
}

.btn-nav:hover {
    background: var(--accent);
    box-shadow: 0 0 25px var(--accent-glow);
    transform: translateY(-2px);
}

.menu-toggle {
    display: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--text);
    z-index: 10002;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
}

/* Mobile Nav Toggle states */
.menu-toggle.active i::before {
    content: "\f00d" !important; /* FontAwesome X icon force */
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        width: 80%;
        height: 100vh;
        background: rgba(5, 5, 5, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: 3rem;
        z-index: 1000;
        box-shadow: -10px 0 30px rgba(0,0,0,0.5);
        transform: translateX(100%);
        transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
    }

    .nav-links.active {
        transform: translateX(0);
    }

    .nav-links a {
        font-size: 1.2rem;
        letter-spacing: 0.2rem;
        text-transform: uppercase;
    }
    
    .btn-nav {
        width: 100%;
        text-align: center;
    }
}
/* Hero */
#hero {
    height: 100vh;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
}

.hero-content h1 {
    font-size: 5rem;
    line-height: 1.1;
    margin-bottom: 2rem;
}

.hero-content p {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto 3rem;
    color: var(--text-muted);
}

.hero-btns {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.btn {
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    letter-spacing: 0.1rem;
    cursor: pointer;
}

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

.btn.secondary {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(5px);
}

.btn.btn-accent {
    background: var(--accent);
    color: white;
    box-shadow: 0 10px 20px rgba(185, 28, 28, 0.3);
}

.btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    opacity: 0.7;
}

.mouse {
    width: 25px;
    height: 40px;
    border: 2px solid var(--text);
    border-radius: 20px;
    margin: 0 auto 0.5rem;
    position: relative;
}

.mouse::before {
    content: '';
    width: 3px;
    height: 6px;
    background: var(--accent);
    position: absolute;
    top: 5px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 5px;
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0% { transform: translate(-50%, 0); opacity: 1; }
    100% { transform: translate(-50%, 15px); opacity: 0; }
}

/* History */
.history-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.history-image img {
    border-radius: 10px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.history-text p {
    margin-bottom: 1.5rem;
    color: var(--text-muted);
    font-size: 1.1rem;
}

.history-emphasis-slim {
    margin-top: 4rem;
    padding: 1.5rem 0;
    background: var(--glass);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
    width: 100%;
}

.emphasis-flex {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
}

.big-number-slim {
    font-size: 5rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
    font-family: 'Playfair Display', serif;
}

.emphasis-divider {
    width: 2px;
    height: 60px;
    background: var(--accent);
    opacity: 0.5;
}

.big-label-slim {
    font-size: 1.25rem;
    letter-spacing: 0.3rem;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 300;
    line-height: 1.2;
}

@media (max-width: 768px) {
    .emphasis-flex { flex-direction: column; gap: 1rem; text-align: center; }
    .emphasis-divider { display: none; }
    .big-number-slim { font-size: 4rem; }
    .big-label-slim { font-size: 0.9rem; letter-spacing: 0.15rem; }
    .history-emphasis-slim { padding: 2rem 1rem; }
}

/* Courses */
.category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.category-header i {
    color: var(--accent);
    font-size: 1.5rem;
}

.category-header h3 {
    font-size: 1.8rem;
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
}

.course-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    font-weight: 500;
    transition: var(--transition);
    cursor: default;
}

.course-card:hover {
    background: var(--accent);
    border-color: var(--accent);
    transform: translateY(-8px);
    color: white;
}

.course-card.highlight {
    border: 1px dashed var(--accent);
    color: var(--accent);
}

.course-card.highlight:hover {
    color: white;
}

/* Teachers */
.teachers-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
}

.teacher-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 2px; /* Consistency with sharp design */
    padding: 1.8rem 1rem;
    text-align: center;
    transition: var(--transition);
    width: 230px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
    position: relative;
    overflow: hidden;
}

.teacher-avatar {
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    margin-bottom: 0.3rem;
    position: relative;
    padding: 4px;
    transition: var(--transition);
    overflow: hidden;
}

.teacher-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    filter: grayscale(100%) contrast(110%);
    transition: var(--transition);
}

.teacher-avatar i {
    font-size: 2rem;
    color: var(--text-muted);
}

.teacher-card:hover .teacher-avatar {
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
    transform: scale(1.05);
}

.teacher-card:hover .teacher-avatar img {
    filter: grayscale(0%) contrast(100%);
    transform: scale(1.1);
}

.teacher-card::before {
    content: '\f001'; /* musical note icon */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: -15px;
    right: -15px;
    font-size: 4rem;
    opacity: 0.02;
    transform: rotate(15deg);
    transition: var(--transition);
}

.teacher-card:hover::before {
    opacity: 0.08;
    transform: rotate(35deg) scale(1.2);
    color: var(--accent);
}

.teacher-card:hover {
    background: rgba(18, 18, 18, 1);
    border-color: var(--accent);
    transform: translateY(-8px);
}

.teacher-info h4 {
    font-size: 1.05rem;
    margin-bottom: 0.2rem;
    color: var(--text);
    font-weight: 600;
}

.teacher-experience {
    display: inline-block;
    font-size: 0.65rem;
    color: white;
    background: var(--accent);
    padding: 0.2rem 0.6rem;
    border-radius: 2px;
    letter-spacing: 0.1rem;
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 0.6rem;
    transition: var(--transition);
}

.teacher-card:hover .teacher-experience {
    box-shadow: 0 0 15px var(--accent-glow);
    transform: scale(1.1);
}

.teacher-info p {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1rem;
    font-weight: 400;
}

.teacher-cta {
    width: 100%;
    text-align: center;
    margin-top: 3rem;
    color: var(--text-muted);
}

/* CTA */
#cta {
    text-align: center;
    background: linear-gradient(rgba(18, 18, 18, 0.8), rgba(18, 18, 18, 0.8)), url('https://images.unsplash.com/photo-1511671782779-c97d3d27a1d4?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    background-attachment: fixed;
}

.dark-cta h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.dark-cta p {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.8;
}

/* Location Section - Immersive Map */
.map-section {
    position: relative;
    padding: 180px 0;
    min-height: 900px;
    display: flex;
    align-items: center;
    overflow: hidden;
    perspective: 2000px;
}

.map-perspective {
    position: absolute;
    top: -10%;
    left: -10%;
    width: 120%;
    height: 120%;
    z-index: 1;
    transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    transform: rotateX(15deg) rotateY(-10deg) rotateZ(2deg) scale(1.1);
    transform-style: preserve-3d;
}

.map-bg {
    width: 100%;
    height: 100%;
    filter: grayscale(100%) contrast(120%) brightness(40%);
    opacity: 0.8;
    transition: var(--transition);
}

.map-bg:hover {
    filter: grayscale(20%) contrast(110%) brightness(60%);
}

.map-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 0%, var(--primary) 80%),
                linear-gradient(to bottom, var(--primary) 0%, transparent 20%, transparent 80%, var(--primary) 100%);
    pointer-events: none;
    z-index: 2;
}

.location-overlay {
    position: relative;
    z-index: 5;
    display: flex;
    justify-content: flex-end; /* Move to right to reveal center of map */
    width: 100%;
}

.location-card-premium {
    background: rgba(25, 25, 25, 0.1);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 4rem;
    border-radius: 2px; /* Consistency with technical sharp design */
    max-width: 550px;
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.8);
    transform: translateZ(150px); /* 3D pop effect */
    transition: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
    animation: floating-card 6s ease-in-out infinite;
}

@keyframes floating-card {
    0%, 100% { transform: translateZ(150px) translateY(0); }
    50% { transform: translateZ(150px) translateY(-20px); }
}

.location-card-premium:hover {
    transform: translateZ(200px) scale(1.02);
    border-color: var(--accent);
    background: rgba(25, 25, 25, 0.4);
}

.location-info-list {
    margin: 2.5rem 0;
}

.info-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--accent);
    margin-top: 0.3rem;
    text-shadow: 0 0 15px var(--accent-glow);
}

.info-item strong {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.15rem;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.info-item p {
    font-size: 1.05rem;
    color: var(--text);
    margin: 0;
    line-height: 1.6;
}

.social-links-location {
    display: flex;
    gap: 1.5rem;
}

.social-btn {
    width: 50px;
    height: 50px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 2px;
    font-size: 1.2rem;
    color: var(--text);
    transition: var(--transition);
}

.social-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    transform: translateY(-5px);
}

.social-btn.wa:hover {
    background: #25D366;
    border-color: #25D366;
}

@media (max-width: 992px) {
    .location-overlay {
        justify-content: center;
    }
    .location-card-premium {
        max-width: 100%;
        text-align: center;
    }
    .info-item {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }
    .social-links-location {
        justify-content: center;
    }
}

/* Footer */
footer {
    padding: 3rem 0;
    border-top: 1px solid var(--glass-border);
}

.footer-mgmt {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 0;
    margin-bottom: 2rem;
    gap: 2rem;
}

.footer-logo {
    height: 80px;
    width: auto;
}

.footer-mgmt-text {
    flex: 1;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    letter-spacing: 0.05rem;
    line-height: 1.4;
    font-weight: 600;
}

@media (max-width: 768px) {
    .footer-mgmt {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-meta i {
    color: #e74c3c;
    margin: 0 0.3rem;
}

/* Animations */
.reveal-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 1s ease-out;
}

.reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: all 1s ease-out;
}

.reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: all 1s ease-out;
}

.revealed {
    opacity: 1;
    transform: none;
}

/* Responsive */
@media (max-width: 1024px) {
    .container { padding: 0 1.5rem; }
    .hero-content h1 { font-size: 4rem; }
    .history-grid, .location-grid { grid-template-columns: 1fr; gap: 3rem; }
    .history-image { order: 2; }
    .history-text { order: 1; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .menu-toggle { display: block; }
    .hero-content h1 { font-size: 3rem; }
    .hero-btns { flex-direction: column; }
    .stats { flex-direction: column; gap: 1.5rem; }
    .course-grid { grid-template-columns: 1fr 1fr; }
    .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}

@media (max-width: 480px) {
    .course-grid { grid-template-columns: 1fr; }
    .hero-content h1 { font-size: 2.5rem; }
}

/* Cursor Follower Notes */
.cursor-note {
    position: absolute;
    color: var(--accent);
    pointer-events: none;
    z-index: 10000;
    opacity: 0.8;
    animation: floatNote 1s ease-out forwards;
    user-select: none;
    font-family: serif;
}

@keyframes floatNote {
    0% {
        transform: translateY(0) translateX(0) scale(1) rotate(0);
        opacity: 0.8;
    }
    100% {
        transform: translateY(-80px) translateX(var(--drift)) scale(1.5) rotate(30deg);
        opacity: 0;
    }
}