/* ============================================
   RENEWCHEM - Corporate Website Styles
   Theme: Navy + Gold (Option A)
   
   Brand Colors:
   - Navy:  #1B365D
   - Gold:  #F5B831
   ============================================ */

:root {
    /* Brand Colors */
    --color-navy: #1B365D;
    --color-navy-light: #2A4A7A;
    --color-navy-dark: #0F1F3A;
    --color-gold: #F5B831;
    --color-gold-light: #FFD060;
    --color-gold-dark: #D49A1A;
    
    /* Neutrals */
    --color-white: #FFFFFF;
    --color-gray-50: #F8FAFC;
    --color-gray-100: #F1F5F9;
    --color-gray-200: #E2E8F0;
    --color-gray-300: #CBD5E1;
    --color-gray-400: #94A3B8;
    --color-gray-500: #64748B;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1E293B;
    --color-gray-900: #0F172A;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-navy) 0%, var(--color-gold) 100%);
    --gradient-gold: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 100%);
    --gradient-navy: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);

    /* Typography */
    --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Quicksand', sans-serif;
    --font-mono: 'Space Mono', monospace;
    
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --shadow-glow-gold: 0 0 40px rgba(245, 184, 49, 0.3);
    --shadow-glow-navy: 0 0 40px rgba(27, 54, 93, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    /* Layout */
    --container-max: 1320px;
    --container-padding: 1.5rem;
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-gray-800);
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Section */
.section { padding: var(--space-16) 0; }
.section-lg { padding: var(--space-20) 0; }
@media (max-width: 768px) { 
    .section { padding: var(--space-12) 0; } 
    .section-lg { padding: var(--space-16) 0; }
}

/* Typography */
h1, h2, h3, h4, h5, h6 { 
    font-family: var(--font-display);
    font-weight: 700; 
    line-height: 1.2; 
    color: var(--color-gray-900); 
}

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

/* ============================================
   SECTION HEADERS
   ============================================ */
.section-header { 
    text-align: center; 
    max-width: 800px; 
    margin: 0 auto var(--space-16); 
}
.section-header-left { 
    text-align: left; 
    margin: 0 0 var(--space-12); 
    max-width: none; 
}
.section-header-light .section-title { color: var(--color-white); }
.section-header-light .section-subtitle { color: rgba(255, 255, 255, 0.7); }

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-gold);
    background: rgba(245, 184, 49, 0.1);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
    border: 1px solid rgba(245, 184, 49, 0.2);
}

.section-tag-navy {
    color: var(--color-navy);
    background: rgba(27, 54, 93, 0.1);
    border-color: rgba(27, 54, 93, 0.2);
}

.section-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    letter-spacing: -0.02em;
}
@media (min-width: 768px) { .section-title { font-size: var(--text-4xl); } }
@media (min-width: 1024px) { .section-title { font-size: var(--text-5xl); } }

.section-title .gold { color: var(--color-gold); }
.section-title .navy { color: var(--color-navy); }

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--color-gray-600);
    max-width: 700px;
    line-height: 1.7;
}
.section-header .section-subtitle { margin: 0 auto; }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: 600;
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background: var(--color-gold);
    color: var(--color-navy);
}
.btn-primary:hover {
    background: var(--color-gold-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-gold);
}

.btn-navy {
    background: var(--color-navy);
    color: var(--color-white);
}
.btn-navy:hover {
    background: var(--color-navy-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-navy);
}

.btn-outline {
    background: transparent;
    color: var(--color-navy);
    border-color: var(--color-gray-300);
}
.btn-outline:hover { 
    background: var(--color-gray-50); 
    border-color: var(--color-gold);
    color: var(--color-gold-dark);
}

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

.btn-large { 
    font-size: var(--text-base); 
    padding: var(--space-4) var(--space-8); 
    border-radius: 50px;
}

.btn-full { width: 100%; }
.btn svg { width: 18px; height: 18px; }

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-6);
    transition: all var(--transition-base);
}

.header.scrolled {
    padding: var(--space-3) var(--space-6);
}

.header.scrolled .nav-bar {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-bar {
    max-width: 1100px;
    margin: 0 auto;
    background: rgba(27, 54, 93, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 15px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    display: flex;
    align-items: center;
}

.nav-logo .logo-renew {
    color: var(--color-white);
}

.nav-logo .logo-chem {
    color: var(--color-gold);
}

.nav-logo img {
    height: 32px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-links li a {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    transition: color var(--transition-fast);
}

.nav-links li a:hover,
.nav-links li a.active {
    color: var(--color-gold);
}

.nav-cta-btn {
    background: var(--color-gold) !important;
    color: var(--color-navy) !important;
    padding: var(--space-2) var(--space-5) !important;
    border-radius: var(--radius-lg) !important;
    font-size: var(--text-xs) !important;
    font-weight: 700 !important;
    transition: all var(--transition-base) !important;
}

.nav-cta-btn:hover {
    background: var(--color-gold-light) !important;
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-white);
    transition: all var(--transition-fast);
}

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

@media (max-width: 1024px) {
    .nav-toggle { display: flex; }
    .nav-links {
        display: none;
        position: absolute;
        top: calc(100% + var(--space-4));
        left: var(--space-4);
        right: var(--space-4);
        background: rgba(27, 54, 93, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--space-6);
        border-radius: var(--radius-xl);
        gap: var(--space-4);
    }
    .nav-links.active { display: flex; }
    .nav-links li a {
        font-size: var(--text-base);
        padding: var(--space-2) 0;
    }
    .nav-cta-btn {
        width: 100%;
        text-align: center;
        padding: var(--space-3) var(--space-5) !important;
    }
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-navy);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--space-16) 0 var(--space-8);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

@media (max-width: 1024px) {
    .footer-main { grid-template-columns: 1fr 1fr; gap: var(--space-8); }
}

@media (max-width: 600px) {
    .footer-main { grid-template-columns: 1fr; }
}

.footer-brand { max-width: 300px; }
.footer-brand img {
    height: 36px;
    width: auto;
    margin-bottom: var(--space-4);
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.footer-logo .logo-renew {
    color: #FFFFFF;
}

.footer-logo .logo-chem {
    color: #F5B831;
}

.footer-brand p {
    font-size: var(--text-sm);
    line-height: 1.8;
    margin-bottom: var(--space-6);
}

.footer-column h4 {
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-4);
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-column a {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-gold);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-bottom p {
    font-size: var(--text-sm);
}

.footer-links {
    display: flex;
    gap: var(--space-6);
}

.footer-links a {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-gold);
}

/* ============================================
   CARDS
   ============================================ */
.card {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: var(--space-6);
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-gold);
}

.card-dark {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

.card-dark:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-gold);
    box-shadow: 0 20px 40px rgba(245, 184, 49, 0.15);
}

/* ============================================
   PRODUCT CARDS
   ============================================ */
.product-card {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: var(--space-6);
    text-align: center;
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-gold);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

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

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(27, 54, 93, 0.1);
    border-color: var(--color-gold);
}

.product-card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-4);
    padding: var(--space-2);
    transition: all var(--transition-base);
}

.product-card:hover .product-card-icon {
    transform: scale(1.1);
}

.product-card-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.product-card h3 {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: var(--space-2);
}

.product-card p {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    line-height: 1.6;
}

/* Dark variant */
.product-card-dark {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

.product-card-dark h3 {
    color: var(--color-white);
}

.product-card-dark p {
    color: rgba(255, 255, 255, 0.6);
}

.product-card-dark:hover {
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 40px rgba(245, 184, 49, 0.15);
}

.product-card-dark .product-card-icon {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
}

.product-card-dark:hover .product-card-icon {
    background: rgba(245, 184, 49, 0.2);
}

/* ============================================
   TRUST BADGES / CERTIFICATIONS
   ============================================ */
.trust-badges {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-8);
    flex-wrap: wrap;
    padding: var(--space-8) 0;
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.trust-badge-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.trust-badge-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-gold);
}

.trust-badge-text {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-navy);
}

.trust-badge-text span {
    display: block;
    font-size: var(--text-xs);
    font-weight: 400;
    color: var(--color-gray-500);
}

/* ============================================
   STATS
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
}

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

.stat-value {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--color-gold);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

.stat-item-light .stat-value {
    color: var(--color-gold);
}

.stat-item-light .stat-label {
    color: rgba(255, 255, 255, 0.7);
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: var(--space-2);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-primary);
    font-size: var(--text-base);
    color: var(--color-gray-800);
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(245, 184, 49, 0.1);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

/* ============================================
   UTILITIES
   ============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-white { color: var(--color-white); }
.text-navy { color: var(--color-navy); }
.text-gold { color: var(--color-gold); }
.text-gray { color: var(--color-gray-600); }

.bg-white { background-color: var(--color-white); }
.bg-gray { background-color: var(--color-gray-50); }
.bg-navy { background-color: var(--color-navy); }

.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }

.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }

.hidden { display: none; }

@media (max-width: 768px) {
    .hidden-mobile { display: none; }
}

@media (min-width: 769px) {
    .hidden-desktop { display: none; }
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% { 
        opacity: 1; 
    }
    50% { 
        opacity: 0.5; 
    }
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0); 
    }
    50% { 
        transform: translateY(-10px); 
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

/* ============================================
   ENHANCED ANIMATIONS
   ============================================ */

/* Prepare elements for animation */
.animate-prepare {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-in {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* Stagger animations */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.stagger-item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* Header hidden on scroll */
.header-hidden {
    transform: translateY(-100%);
}

/* ============================================
   SCROLL PROGRESS BAR
   ============================================ */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-gold), var(--color-gold-light));
    width: 0%;
    z-index: 1001;
    transition: width 0.1s linear;
}

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--color-navy);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: 999;
    border: none;
    box-shadow: var(--shadow-lg);
}

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

.back-to-top:hover {
    background: var(--color-gold);
    color: var(--color-navy);
    transform: translateY(-5px);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

/* ============================================
   COOKIE BANNER
   ============================================ */
#cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-navy);
    padding: var(--space-4) var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    z-index: 1000;
    transform: translateY(100%);
    transition: transform var(--transition-base);
    flex-wrap: wrap;
}

#cookie-banner.visible {
    transform: translateY(0);
}

#cookie-banner p {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--text-sm);
    margin: 0;
    flex: 1;
}

#cookie-banner a {
    color: var(--color-gold);
    text-decoration: underline;
}

/* ============================================
   LIGHTBOX
   ============================================ */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox.active {
    opacity: 1;
}

.lightbox-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    cursor: pointer;
}

.lightbox-content {
    position: relative;
    max-width: 90%;
    max-height: 90vh;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.lightbox.active .lightbox-content {
    transform: scale(1);
}

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
}

.lightbox-caption {
    text-align: center;
    color: var(--color-white);
    margin-top: var(--space-4);
    font-size: var(--text-sm);
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 2rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.lightbox-close:hover {
    color: var(--color-gold);
}

/* ============================================
   PRELOADER
   ============================================ */
.preloader {
    position: fixed;
    inset: 0;
    background: var(--color-navy);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.loaded {
    opacity: 0;
    visibility: hidden;
}

.preloader-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(245, 184, 49, 0.2);
    border-top-color: var(--color-gold);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================
   SPINNER (for buttons)
   ============================================ */
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ============================================
   ACCORDION
   ============================================ */
.accordion {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.accordion-item {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.accordion-item:hover {
    border-color: var(--color-gold);
}

.accordion-item.active {
    border-color: var(--color-gold);
    box-shadow: var(--shadow-md);
}

.accordion-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5);
    cursor: pointer;
    font-weight: 600;
    color: var(--color-navy);
    transition: background var(--transition-fast);
}

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

.accordion-icon {
    width: 24px;
    height: 24px;
    transition: transform var(--transition-base);
}

.accordion-item.active .accordion-icon {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.accordion-content-inner {
    padding: 0 var(--space-5) var(--space-5);
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* ============================================
   TABS
   ============================================ */
.tabs-nav {
    display: flex;
    gap: var(--space-2);
    border-bottom: 2px solid var(--color-gray-200);
    margin-bottom: var(--space-6);
    overflow-x: auto;
}

.tabs-nav button {
    padding: var(--space-3) var(--space-5);
    font-weight: 600;
    color: var(--color-gray-600);
    background: none;
    border: none;
    cursor: pointer;
    position: relative;
    white-space: nowrap;
    transition: color var(--transition-fast);
}

.tabs-nav button::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-gold);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.tabs-nav button:hover {
    color: var(--color-navy);
}

.tabs-nav button.active {
    color: var(--color-navy);
}

.tabs-nav button.active::after {
    transform: scaleX(1);
}

.tab-panel {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   GLOW EFFECT
   ============================================ */
[data-glow] {
    position: relative;
    overflow: hidden;
}

[data-glow]::before {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(245, 184, 49, 0.3) 0%, transparent 70%);
    left: var(--glow-x, 50%);
    top: var(--glow-y, 50%);
    transform: translate(-50%, -50%);
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-base);
}

[data-glow]:hover::before {
    opacity: 1;
}

/* ============================================
   TILT CARDS
   ============================================ */
[data-tilt] {
    transition: transform 0.3s ease;
    transform-style: preserve-3d;
}

/* ============================================
   NEWSLETTER FORM
   ============================================ */
.newsletter-form {
    display: flex;
    gap: var(--space-3);
    max-width: 450px;
}

.newsletter-form input {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    transition: border-color var(--transition-fast);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--color-gold);
}

.newsletter-form button {
    padding: var(--space-3) var(--space-6);
    background: var(--color-gold);
    color: var(--color-navy);
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.newsletter-form button:hover {
    background: var(--color-gold-light);
}

.newsletter-form button.success {
    background: #22c55e;
    color: white;
}

.form-message {
    margin-top: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-gold);
}

/* ============================================
   ERROR STATES
   ============================================ */
.form-input.error,
.form-textarea.error,
.form-select.error {
    border-color: #ef4444;
}

.error-message {
    color: #ef4444;
    font-size: var(--text-xs);
    margin-top: var(--space-1);
}