/* --- Variables & Theming --- */
:root {
    /* Light Theme (Fallback/Optional) */
    --bg-main: #f8fafc;
    --bg-alt: #f1f5f9;
    --text-main: #0f172a;
    --text-muted: #475569;
    --primary: #f59e0b; /* Amber/Gold */
    --primary-hover: #d97706;
    --secondary: #2563eb;
    --border-color: rgba(0, 0, 0, 0.1);
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.3);
    --page-bg-overlay: rgba(248, 250, 252, 0.78);
    --section-darker-bg: rgba(241, 245, 249, 0.9);
    --hero-overlay-edge: rgba(248, 250, 252, 0.45);
    --nav-scrolled-bg: rgba(255, 255, 255, 0.9);
    --accent-glow: rgba(245, 158, 11, 0.15);
    --radius: 16px;
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    /* Dark Industrial Theme */
    --bg-main: #0a0a0a;
    --bg-alt: #111111;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #f59e0b; /* Amber/Gold */
    --primary-hover: #d97706;
    --secondary: #1f2937;
    --border-color: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.05);
    --page-bg-overlay: rgba(10, 10, 10, 0.76);
    --section-darker-bg: rgba(17, 17, 17, 0.9);
    --hero-overlay-edge: rgba(10, 10, 10, 0.42);
    --nav-scrolled-bg: rgba(10, 10, 10, 0.8);
    --accent-glow: rgba(245, 158, 11, 0.15);
}

[data-theme="cyberpunk"] {
    --bg-main: #080712;
    --bg-alt: #111025;
    --text-main: #f8f7ff;
    --text-muted: #b7b4d8;
    --primary: #00f5ff;
    --primary-hover: #ff2bd6;
    --secondary: #7c3aed;
    --border-color: rgba(0, 245, 255, 0.22);
    --glass-bg: rgba(14, 13, 35, 0.58);
    --glass-border: rgba(0, 245, 255, 0.18);
    --page-bg-overlay: rgba(8, 7, 18, 0.72);
    --section-darker-bg: rgba(17, 16, 37, 0.9);
    --hero-overlay-edge: rgba(8, 7, 18, 0.46);
    --nav-scrolled-bg: rgba(8, 7, 18, 0.86);
    --accent-glow: rgba(255, 43, 214, 0.18);
}

[data-theme="ocean"] {
    --bg-main: #031923;
    --bg-alt: #063247;
    --text-main: #eefcff;
    --text-muted: #a9cfda;
    --primary: #38d9c8;
    --primary-hover: #18a999;
    --secondary: #0e7490;
    --border-color: rgba(56, 217, 200, 0.18);
    --glass-bg: rgba(6, 50, 71, 0.48);
    --glass-border: rgba(169, 207, 218, 0.18);
    --page-bg-overlay: rgba(3, 25, 35, 0.74);
    --section-darker-bg: rgba(3, 35, 48, 0.9);
    --hero-overlay-edge: rgba(3, 25, 35, 0.45);
    --nav-scrolled-bg: rgba(3, 25, 35, 0.86);
    --accent-glow: rgba(56, 217, 200, 0.16);
}

[data-theme="sunrise"] {
    --bg-main: #fff7ed;
    --bg-alt: #ffedd5;
    --text-main: #2f1f18;
    --text-muted: #765849;
    --primary: #f97316;
    --primary-hover: #db2777;
    --secondary: #be123c;
    --border-color: rgba(249, 115, 22, 0.2);
    --glass-bg: rgba(255, 255, 255, 0.66);
    --glass-border: rgba(255, 237, 213, 0.72);
    --page-bg-overlay: rgba(255, 247, 237, 0.78);
    --section-darker-bg: rgba(255, 237, 213, 0.88);
    --hero-overlay-edge: rgba(255, 247, 237, 0.46);
    --nav-scrolled-bg: rgba(255, 247, 237, 0.92);
    --accent-glow: rgba(219, 39, 119, 0.14);
}

[data-theme="nova"] {
    --bg-main: #0b1020;
    --bg-alt: #151b2f;
    --text-main: #f7fbff;
    --text-muted: #b7c6d8;
    --primary: #a3e635;
    --primary-hover: #60a5fa;
    --secondary: #334155;
    --border-color: rgba(163, 230, 53, 0.2);
    --glass-bg: rgba(21, 27, 47, 0.58);
    --glass-border: rgba(247, 251, 255, 0.12);
    --page-bg-overlay: rgba(11, 16, 32, 0.73);
    --section-darker-bg: rgba(15, 23, 42, 0.88);
    --hero-overlay-edge: rgba(11, 16, 32, 0.46);
    --nav-scrolled-bg: rgba(11, 16, 32, 0.86);
    --accent-glow: rgba(96, 165, 250, 0.16);
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Inter', sans-serif;
    font-size: 16px;
}

body {
    background-color: var(--bg-main);
    background-image: linear-gradient(var(--page-bg-overlay), var(--page-bg-overlay)), url('BG.png');
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: var(--text-main);
    line-height: 1.6;
    transition: background-color var(--transition), color var(--transition);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-main);
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section { padding: 6rem 0; position: relative; }
.section-darker { background-color: var(--section-darker-bg); }
.section-header { text-align: center; margin-bottom: 4rem; }
.section-title { font-size: clamp(2rem, 5vw, 3rem); margin-bottom: 1rem; }
.section-desc { color: var(--text-muted); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }

.text-gradient {
    background: linear-gradient(135deg, var(--primary), #fbbf24);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

/* --- Utilities & Buttons --- */
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.text-muted { color: var(--text-muted); }
.hidden { display: none !important; }

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 0.75rem 1.5rem; border-radius: 8px; font-weight: 600; cursor: pointer;
    border: 2px solid transparent; transition: var(--transition);
    font-family: 'Inter', sans-serif; font-size: 1rem;
}
.btn-lg { padding: 1rem 2rem; font-size: 1.1rem; }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.9rem; }
.btn-block { width: 100%; }

.btn-primary { background: var(--primary); color: #000; }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 10px 20px rgba(245, 158, 11, 0.2); }
.btn-secondary { background: var(--secondary); color: #fff; }
.btn-secondary:hover { background: #374151; transform: translateY(-2px); }
.btn-outline { background: transparent; border-color: var(--border-color); color: var(--text-main); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

.btn-icon {
    background: transparent; border: none; color: var(--text-main); font-size: 1.25rem;
    cursor: pointer; width: 40px; height: 40px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.3s;
}
.btn-icon:hover { background: var(--glass-bg); }

.theme-picker {
    position: relative;
}

.theme-menu {
    position: absolute;
    top: calc(100% + 0.75rem);
    right: 0;
    z-index: 1100;
    width: 240px;
    padding: 0.6rem;
    display: grid;
    gap: 0.25rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

.theme-picker.open .theme-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.theme-option {
    width: 100%;
    background: transparent;
    border: 0;
    border-radius: 8px;
    color: var(--text-main);
    cursor: pointer;
    font: inherit;
    font-weight: 700;
    padding: 0.8rem 1rem;
    text-align: left;
    transition: var(--transition);
}

.theme-option:hover,
.theme-option.active {
    background: var(--primary);
    color: #000;
}

/* --- Glassmorphism --- */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

/* --- Loader --- */
.loader-wrapper {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: var(--bg-main); z-index: 9999;
    display: flex; justify-content: center; align-items: center;
    transition: opacity 0.5s ease;
}
.loader-content { text-align: center; }
.loader-logo { width: 80px; margin-bottom: 20px; animation: pulse 2s infinite; }
.loader-bar {
    width: 200px; height: 4px; background: var(--border-color); border-radius: 4px;
    overflow: hidden; position: relative; margin: 0 auto;
}
.loader-bar::after {
    content: ''; position: absolute; left: 0; top: 0; height: 100%; width: 50%;
    background: var(--primary); animation: loadBar 1.5s infinite ease-in-out;
}
@keyframes pulse { 0%, 100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.1); opacity: 0.7; } }
@keyframes loadBar { 0% { left: -50%; } 100% { left: 100%; } }

/* --- Navbar --- */
.navbar {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
    height: 80px; transition: background 0.3s, backdrop-filter 0.3s;
    border-bottom: 1px solid transparent;
}
.navbar.scrolled {
    background: var(--nav-scrolled-bg); backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-container { display: flex; justify-content: space-between; align-items: center; height: 100%; }
.logo { display: flex; align-items: center; gap: 0.5rem; font-size: 1.5rem; font-weight: 800; font-family: 'Outfit'; }
.brand-logo { width: 40px; height: 40px; border-radius: 50%; }
.nav-links { display: flex; gap: 2rem; }
.nav-link { font-weight: 500; font-size: 1rem; transition: color 0.3s; position: relative; }
.nav-link:hover { color: var(--primary); }
.nav-link::after {
    content: ''; position: absolute; width: 0; height: 2px; bottom: -4px; left: 0;
    background: var(--primary); transition: width 0.3s;
}
.nav-link:hover::after { width: 100%; }
.nav-tools { display: flex; align-items: center; gap: 1rem; }
.hamburger { display: none; background: none; border: none; color: var(--text-main); font-size: 1.5rem; cursor: pointer; }

/* --- Hero Section --- */
.hero {
    position: relative; min-height: 100vh; display: flex; flex-direction: column;
    padding-top: 100px; overflow: hidden;
}
.hero-bg-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: radial-gradient(circle at 50% 50%, var(--accent-glow) 0%, var(--hero-overlay-edge) 70%);
    z-index: -1;
}
.hero-shapes .shape {
    position: absolute; border-radius: 50%; filter: blur(100px); z-index: -2; opacity: 0.5;
}
.hero-shapes .s1 { width: 400px; height: 400px; background: var(--accent-glow); top: -10%; right: -5%; }
.hero-shapes .s2 { width: 300px; height: 300px; background: var(--accent-glow); bottom: 10%; left: -10%; }

.hero-content { display: flex; flex-direction: column; justify-content: center; gap: 4rem; flex: 1; }
.hero-text-wrapper { max-width: 800px; }
.hero-title { font-size: clamp(3rem, 8vw, 5rem); margin-bottom: 1.5rem; letter-spacing: -1px; }
.hero-subtitle { font-size: clamp(1.1rem, 2vw, 1.3rem); color: var(--text-muted); margin-bottom: 2.5rem; max-width: 600px; }
.hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-stats { display: flex; gap: 2rem; flex-wrap: wrap; }
.stat-item { flex: 1; min-width: 200px; padding: 2rem; text-align: center; }
.stat-item h3 { font-size: 2.5rem; display: inline-block; margin-bottom: 0.5rem; color: var(--primary); }
.stat-plus { font-size: 2.5rem; color: var(--primary); font-weight: 800; }
.stat-item p { color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: 1px; font-size: 0.9rem; }

/* Ticker */
.ticker-wrap {
    width: 100%; background: var(--primary);
    display: flex; align-items: center; height: 40px; overflow: hidden; color: #000;
    margin-top: 4rem; position: relative; z-index: 10;
}
.ticker-heading { font-weight: 800; font-size: 0.8rem; padding: 0 1rem; background: #000; color: var(--primary); height: 100%; display: flex; align-items: center; z-index: 2; position: relative; letter-spacing: 1px; }
.ticker { width: 100%; overflow: hidden; padding-left: 2rem; }
.ticker__inner { display: flex; white-space: nowrap; animation: ticker 30s linear infinite; gap: 3rem; font-weight: 600; font-size: 0.9rem; }
.ticker-item span { font-weight: 800; }
.trend-up { color: #166534; margin-left: 4px; }
.trend-down { color: #991b1b; margin-left: 4px; }
@keyframes ticker { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* --- Materials Section --- */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }
.material-card { padding: 0; overflow: hidden; display: flex; flex-direction: column; transition: transform 0.3s; }
.material-card:hover { transform: translateY(-5px); }
.material-card-img { width: 100%; height: 200px; object-fit: cover; border-bottom: 1px solid var(--glass-border); }
.material-card-body { padding: 1.5rem; text-align: center; }
.material-card-category { font-size: 0.8rem; text-transform: uppercase; color: var(--primary); font-weight: 700; letter-spacing: 1px; margin-bottom: 0.5rem; }
.material-card h3 { font-size: 1.5rem; margin-bottom: 1rem; }

/* --- Calculator Section --- */
.calc-wrapper { display: flex; flex-wrap: wrap; overflow: hidden; }
.calc-content { flex: 1; min-width: 300px; padding: 4rem; }
.calc-content h2 { font-size: 2.5rem; margin-bottom: 1rem; }
.calc-content p { color: var(--text-muted); margin-bottom: 2rem; }
.calc-result { flex: 0.5; min-width: 250px; background: rgba(245, 158, 11, 0.05); padding: 4rem; display: flex; flex-direction: column; justify-content: center; border-left: 1px solid var(--glass-border); }
.result-amount { font-size: 3.5rem; font-weight: 800; color: var(--primary); font-family: 'Outfit'; margin: 1rem 0; line-height: 1; }
.result-note { font-size: 0.85rem; color: var(--text-muted); }

/* Forms */
.form-group { margin-bottom: 1.5rem; }
.form-row { display: flex; gap: 1.5rem; }
.form-row .form-group { flex: 1; }
label { display: block; margin-bottom: 0.5rem; font-weight: 600; font-size: 0.9rem; color: var(--text-muted); }
input, select, textarea {
    width: 100%; padding: 0.8rem 1rem; background: var(--bg-alt);
    border: 1px solid var(--border-color); border-radius: 8px;
    color: var(--text-main); font-family: 'Inter', sans-serif; font-size: 1rem;
    transition: var(--transition);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1); }
select { appearance: none; background-image: url('data:image/svg+xml;utf8,<svg fill="%2394a3b8" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M7 10l5 5 5-5z"/></svg>'); background-repeat: no-repeat; background-position: right 1rem center; }

/* --- Booking Section --- */
.booking-wrapper { display: flex; gap: 4rem; align-items: center; }
.booking-info { flex: 1; }
.booking-features { margin-top: 2rem; display: flex; flex-direction: column; gap: 1rem; }
.booking-features li { display: flex; align-items: center; gap: 1rem; font-size: 1.1rem; font-weight: 500; }
.booking-form-container { flex: 1.2; padding: 3rem; }
.alert-box { background: rgba(245, 158, 11, 0.1); border-left: 4px solid var(--primary); padding: 1rem; margin-bottom: 1.5rem; font-size: 0.9rem; color: var(--text-main); border-radius: 0 8px 8px 0; }

/* --- Why Us Section --- */
.why-us-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; }
.feature-card { padding: 2.5rem 2rem; text-align: center; transition: transform 0.3s; }
.feature-card:hover { transform: translateY(-10px); }
.icon-box { width: 70px; height: 70px; margin: 0 auto 1.5rem; background: rgba(245, 158, 11, 0.1); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 2rem; color: var(--primary); }
.feature-card h3 { font-size: 1.3rem; margin-bottom: 1rem; }

/* --- Testimonials Section --- */
.testimonial-swiper { padding-bottom: 3rem; }
.testimonial-card { padding: 3rem; text-align: center; height: 100%; display: flex; flex-direction: column; justify-content: center; }
.rating { color: var(--primary); margin-bottom: 1.5rem; font-size: 1.2rem; }
.quote { font-size: 1.2rem; font-style: italic; margin-bottom: 2rem; color: var(--text-main); }
.author { font-weight: 700; color: var(--text-muted); }
.swiper-pagination-bullet-active { background: var(--primary) !important; }

/* --- FAQ Section --- */
.faq-container { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 1rem; }
.faq-item { padding: 0; overflow: hidden; }
.faq-question { padding: 1.5rem; font-weight: 600; font-size: 1.1rem; cursor: pointer; display: flex; justify-content: space-between; align-items: center; transition: color 0.3s; }
.faq-question:hover { color: var(--primary); }
.faq-question i { transition: transform 0.3s; }
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer { padding: 0 1.5rem; max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease; color: var(--text-muted); }
.faq-item.active .faq-answer { padding: 0 1.5rem 1.5rem; max-height: 500px; }

/* --- Terms Section --- */
.terms-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; }
.terms-item { padding: 1.5rem; position: relative; overflow: hidden; }
.terms-number {
    display: inline-flex; align-items: center; justify-content: center;
    width: 42px; height: 42px; margin-bottom: 1rem; border-radius: 50%;
    background: rgba(245, 158, 11, 0.12); color: var(--primary);
    font-family: 'Outfit', sans-serif; font-weight: 800; font-size: 0.9rem;
}
.terms-item h3 { font-size: 1.2rem; margin-bottom: 0.75rem; }
.terms-item p { color: var(--text-muted); font-size: 0.95rem; }

.legal-page {
    min-height: 100vh;
    background-image: linear-gradient(rgba(10, 10, 10, 0.62), rgba(10, 10, 10, 0.82)), url('BG.png');
}
.legal-hero {
    position: relative;
    min-height: 100vh;
    padding: 9rem 0 5rem;
    overflow: hidden;
}
.legal-hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 35% 35%, rgba(245, 158, 11, 0.12), transparent 42%);
    pointer-events: none;
}
.legal-content { position: relative; z-index: 1; }
.legal-content .section-title { font-size: clamp(3rem, 7vw, 5rem); }
.legal-content .terms-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.legal-content .terms-item {
    min-height: 240px;
    padding: 2rem;
    border-radius: var(--radius);
}
.legal-content .terms-number { width: 56px; height: 56px; font-size: 1rem; }
.legal-content .terms-item h3 { font-size: 1.35rem; }
.legal-content .terms-item p { font-size: 1.05rem; line-height: 1.7; }

/* --- Contact Section --- */
.contact-wrapper { display: flex; gap: 3rem; }
.contact-info { flex: 1; display: flex; flex-direction: column; gap: 1.5rem; justify-content: center; }
.info-item { display: flex; align-items: center; gap: 1.5rem; padding: 1.5rem; }
.icon-circle { width: 50px; height: 50px; border-radius: 50%; background: rgba(245, 158, 11, 0.1); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 1.2rem; }
.map-container { flex: 1.5; min-height: 350px; display: block; padding: 0; position: relative; transition: all 0.4s ease; text-decoration: none; overflow: hidden; }
.clickable-map:hover {
    transform: scale(1.02);
    box-shadow: 0 0 20px rgba(245, 158, 11, 0.4);
    border-color: var(--primary);
}
.map-overlay-btn {
    position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
    background: var(--bg-main); color: var(--text-main); padding: 0.8rem 1.5rem;
    border-radius: 30px; font-weight: 600; font-size: 0.9rem; display: flex;
    align-items: center; gap: 0.5rem; box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    border: 1px solid var(--border-color); transition: var(--transition); z-index: 2;
}
.clickable-map:hover .map-overlay-btn { background: var(--primary); color: #000; border-color: var(--primary); }

/* Floating WhatsApp */
.floating-whatsapp {
    position: fixed; bottom: 30px; right: 30px; width: 60px; height: 60px;
    background: #25D366; color: white; border-radius: 50%; display: flex;
    align-items: center; justify-content: center; font-size: 2rem;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4); z-index: 999;
    transition: transform 0.3s;
}
.floating-whatsapp:hover { transform: scale(1.1) rotate(5deg); }

/* --- Footer --- */
.footer { background: var(--bg-alt); padding: 5rem 0 2rem; border-top: 1px solid var(--glass-border); }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 4rem; margin-bottom: 3rem; }
.footer-brand .logo { margin-bottom: 1.5rem; }
.footer-desc { color: var(--text-muted); margin-bottom: 1.5rem; max-width: 300px; }
.social-links { display: flex; gap: 1rem; }
.social-links a { width: 40px; height: 40px; border-radius: 50%; background: var(--bg-main); display: flex; align-items: center; justify-content: center; color: var(--text-main); transition: var(--transition); }
.social-links a:hover { background: var(--primary); color: #000; transform: translateY(-3px); }
.footer-links h4 { margin-bottom: 1.5rem; font-size: 1.2rem; }
.footer-links ul { display: flex; flex-direction: column; gap: 0.8rem; }
.footer-links a { color: var(--text-muted); transition: color 0.3s; }
.footer-links a:hover { color: var(--primary); }
.footer-bottom { text-align: center; padding-top: 2rem; border-top: 1px solid var(--glass-border); color: var(--text-muted); font-size: 0.9rem; }

/* --- Modals --- */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.8); z-index: 2000;
    display: flex; justify-content: center; align-items: center;
    backdrop-filter: blur(5px); opacity: 1; transition: opacity 0.3s;
}
.modal-overlay.hidden { opacity: 0; pointer-events: none; }
.modal-content { width: 90%; max-width: 400px; padding: 2.5rem; position: relative; transform: scale(1); transition: transform 0.3s; }
.modal-overlay.hidden .modal-content { transform: scale(0.95); }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 2rem; }
.btn-close { background: none; border: none; color: var(--text-muted); font-size: 1.5rem; cursor: pointer; transition: color 0.3s; }
.btn-close:hover { color: var(--primary); }
.error-msg { color: #ef4444; font-size: 0.9rem; margin-top: 0.5rem; }

.tab-btn { background: none; border: none; color: var(--text-muted); padding: 0.5rem 1rem; font-weight: 600; cursor: pointer; border-bottom: 2px solid transparent; transition: var(--transition); }
.tab-btn.active, .tab-btn:hover { color: var(--primary); border-bottom-color: var(--primary); }

/* --- Initial GSAP States --- */
.gsap-fade-up { opacity: 0; transform: translateY(40px); }
.gsap-fade-left { opacity: 0; transform: translateX(-40px); }
.gsap-fade-right { opacity: 0; transform: translateX(40px); }
.gsap-scale-in { opacity: 0; transform: scale(0.9); }

/* --- Responsive --- */
@media (max-width: 992px) {
    .hero-content { align-items: center; text-align: center; }
    .hero-buttons { justify-content: center; }
    .hero-stats { justify-content: center; }
    .booking-wrapper, .calc-wrapper, .contact-wrapper { flex-direction: column; gap: 2rem; }
    .calc-content, .calc-result { width: 100%; border-left: none; border-top: 1px solid var(--glass-border); }
    .footer-top { grid-template-columns: 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
    .hamburger { display: block; }
    .nav-links {
        position: fixed; top: 80px; left: -100%; width: 100%; height: calc(100vh - 80px);
        background: var(--bg-main); flex-direction: column; align-items: center; justify-content: center;
        transition: left 0.3s;
    }
    .nav-links.active { left: 0; }
    .theme-menu { right: -3.5rem; width: 220px; }
    .hero-title { font-size: 2.5rem; }
    .section { padding: 4rem 0; }
    .form-row { flex-direction: column; gap: 0; }
}