/* 
   BMG Mineração - Premium Theme 
   Design System & Core Styles
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@300;400;500;700;800&display=swap');

:root {
    /* Color Palette - Premium Industrial Dark */
    --color-primary: #051e3e;
    /* Deep Navy */
    --color-primary-dark: #031226;
    /* Darker Navy */
    --color-primary-light: #0d2b52;
    /* Lighter Navy for gradients */

    /* Nuanced Backgrounds */
    --color-bg-darkest: #050a12;
    /* Almost black with blue tint */
    --color-bg-dark: #0a0f1a;
    /* Base dark */
    --color-bg-card: #0f1623;
    /* Card backgrounds */
    --color-bg-elevated: #1a2132;
    /* Elevated elements */
    --color-bg-hover: #212b3f;
    /* Hover states */

    --color-accent: #ff6b00;
    /* Vibrant Orange (Brand) */
    --color-accent-hover: #e65c00;
    /* Darker Orange */
    --color-accent-light: #ff8534;
    /* Lighter Orange */
    --color-accent-glow: rgba(255, 107, 0, 0.4);
    --color-accent-glow-strong: rgba(255, 107, 0, 0.6);

    /* Text Colors Enhanced */
    --color-text-primary: #f5f7fa;
    /* Soft white (not pure) */
    --color-text-light: #ffffff;
    --color-text-dim: #9ca9b9;
    /* Blueish Grey */
    --color-text-muted: #6b7785;
    /* Darker muted */
    --color-text-dark: #051e3e;

    /* Glassmorphism System */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-bg-medium: rgba(255, 255, 255, 0.08);
    --glass-bg-strong: rgba(255, 255, 255, 0.12);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-accent: rgba(255, 107, 0, 0.3);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    --glass-shadow-strong: 0 20px 60px rgba(0, 0, 0, 0.4);

    /* Premium Gradients */
    --gradient-primary: linear-gradient(135deg, #051e3e 0%, #0a2847 100%);
    --gradient-accent: linear-gradient(135deg, #ff6b00 0%, #ff8534 100%);
    --gradient-hero: linear-gradient(135deg,
            rgba(5, 30, 62, 0.95) 0%,
            rgba(10, 40, 71, 0.8) 50%,
            rgba(255, 107, 0, 0.15) 100%);
    --gradient-card: linear-gradient(135deg,
            rgba(255, 255, 255, 0.03) 0%,
            rgba(255, 255, 255, 0.01) 100%);

    /* Legacy (maintain compatibility) */
    --color-surface: var(--glass-bg);
    --color-border: var(--glass-border);

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Fluid Typography Sizes */
    --font-size-h1: clamp(2.5rem, 5vw, 4rem);
    --font-size-h2: clamp(2rem, 4vw, 3rem);
    --font-size-h3: clamp(1.5rem, 3vw, 2rem);
    --font-size-h4: clamp(1.25rem, 2.5vw, 1.5rem);
    --font-size-body: clamp(1rem, 1.5vw, 1.125rem);
    --font-size-small: clamp(0.875rem, 1.2vw, 1rem);

    /* Spacing & Layout */
    --container-width: 1200px;
    --container-width-wide: 1400px;
    --header-height: 80px;
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --border-radius-xl: 24px;

    /* Animation Curves - Premium */
    --ease-smooth: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --ease-in-out-expo: cubic-bezier(0.87, 0, 0.13, 1);
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);

    /* Transitions */
    --transition-fast: 0.3s ease;
    --transition-smooth: 0.6s var(--ease-smooth);
    --transition-bounce: 0.5s var(--ease-bounce);

    /* State Colors */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-info: #3b82f6;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--color-text-light);
    line-height: 1.2;
    margin-bottom: 1rem;
}

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

ul {
    list-style: none;
}

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

/* Utilities */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 100px 0;
}

.text-accent {
    color: var(--color-accent);
}

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

/* Animated Gradient Text */
.text-gradient-animated {
    background: linear-gradient(90deg,
            var(--color-accent) 0%,
            var(--color-accent-light) 50%,
            var(--color-accent) 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientShift 3s linear infinite;
}

@keyframes gradientShift {
    to {
        background-position: 200% center;
    }
}

/* =========================================
   Glassmorphism Components
   ========================================= */

.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--glass-shadow);
    transition: all var(--transition-smooth);
}

.glass-card:hover {
    background: var(--glass-bg-medium);
    border-color: var(--glass-border-accent);
    box-shadow: var(--glass-shadow-strong),
        0 0 0 1px rgba(255, 107, 0, 0.1) inset;
    transform: translateY(-5px);
}

.glass-strong {
    background: var(--glass-bg-strong);
    backdrop-filter: blur(20px) saturate(200%);
    -webkit-backdrop-filter: blur(20px) saturate(200%);
}

/* Premium Shadows */
.shadow-sm {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.shadow-md {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.shadow-lg {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.shadow-xl {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.shadow-glow {
    box-shadow: 0 0 30px var(--color-accent-glow);
}

/* Button Component */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.5px;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-smooth);
    border: none;
    outline: none;
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-accent);
    color: white;
    box-shadow: 0 4px 15px var(--color-accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 30px var(--color-accent-glow-strong);
}

.btn-primary:active {
    transform: translateY(0) scale(0.98);
}

.btn-outline {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: white;
}

.btn-outline:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: rgba(255, 107, 0, 0.05);
    transform: translateY(-2px);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.05);
    color: white;
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-lg {
    padding: 18px 40px;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 10px 24px;
    font-size: 0.9rem;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
}

/* =========================================
   Header & Navigation
   ========================================= */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition-fast);
    background: transparent;
    /* Starts transparent */
}

/* Scrolled State (added via JS) */
.site-header.scrolled {
    background: rgba(2, 11, 22, 0.85);
    /* Dark semi-transparent */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 15px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: white;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: opacity var(--transition-fast);
}

.logo-img {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.site-header.scrolled .logo-img {
    height: 40px;
}

.main-nav ul {
    display: flex;
    gap: 30px;
    align-items: center;
}

.main-nav a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-dim);
    position: relative;
}

.main-nav a:hover,
.main-nav a.active {
    color: white;
}

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

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

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background: white;
    transition: 0.3s;
}

/* =========================================
   Hero Section
   ========================================= */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: url('https://images.unsplash.com/photo-1579547621113-e4bb2a19bdd6?q=80&w=2539&auto=format&fit=crop');
    /* Placeholder Premium Mining Image */
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    /* Parallax effect */
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
            rgba(5, 30, 62, 0.95) 0%,
            rgba(5, 30, 62, 0.7) 50%,
            rgba(255, 107, 0, 0.1) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding-top: 60px;
    /* Offset for fixed header */
}

.hero-tag {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(255, 107, 0, 0.1);
    border: 1px solid rgba(255, 107, 0, 0.3);
    color: var(--color-accent);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 20px;
    backdrop-filter: blur(5px);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -1px;
    line-height: 1.1;
}

.hero p {
    font-size: 1.2rem;
    color: var(--color-text-dim);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Hero Slideshow */
.hero-slideshow {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 2s var(--ease-smooth);
}

.hero-slide.active {
    opacity: 1;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    gap: 60px;
    justify-content: center;
    margin: 40px 0;
    opacity: 0;
}

.hero-stats.reveal-active {
    opacity: 1;
}

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

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
    font-family: var(--font-heading);
    line-height: 1;
    margin-bottom: 8px;
    text-shadow: 0 0 20px var(--color-accent-glow);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: white;
    animation: bounce 2s ease-in-out infinite;
    cursor: pointer;
    z-index: 10;
}

.scroll-indicator span {
    display: block;
    font-size: 0.85rem;
    margin-bottom: 10px;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.scroll-arrow svg {
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

@keyframes bounce {

    0%,
    100% {
        transform: translate(-50%, 0);
    }

    50% {
        transform: translate(-50%, -15px);
    }
}

/* Reveal Animations */
.reveal,
.reveal-fade,
.reveal-slide-up {
    opacity: 0;
    transition: all 0.8s var(--ease-smooth);
}

.reveal-fade {
    transform: none;
}

.reveal-slide-up {
    transform: translateY(40px);
}

.reveal-active,
.reveal-fade.reveal-active,
.reveal-slide-up.reveal-active {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* Stagger delays for sequential animations */
.stagger-1 {
    transition-delay: 0.1s;
}

.stagger-2 {
    transition-delay: 0.2s;
}

.stagger-3 {
    transition-delay: 0.4s;
}

.stagger-4 {
    transition-delay: 0.6s;
}

/* =========================================
   Sections: Shared Styles
   ========================================= */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-subtitle {
    color: var(--color-accent);
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 0.9rem;
    display: block;
    margin-bottom: 10px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
}

/* =========================================
   About Section
   ========================================= */
.about {
    background: var(--color-bg-dark);
}

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

.about-image {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.about-image img {
    transition: transform 0.5s ease;
}

.about-image:hover img {
    transform: scale(1.05);
}

/* Premium image zoom effect */
.image-zoom {
    transition: transform 0.6s var(--ease-smooth);
}

.about-image:hover .image-zoom {
    transform: scale(1.08);
}

.about-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, rgba(5, 30, 62, 0.6), transparent);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.03);
    padding: 20px;
    border-radius: 10px;
    border-left: 3px solid var(--color-accent);
}

.stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-dim);
}

/* =========================================
   Identity (Mission/Vision) Section
   ========================================= */
.identity {
    background: linear-gradient(to bottom, var(--color-bg-dark), var(--color-primary-dark));
    position: relative;
}

.identity-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.identity-card {
    background: rgba(255, 255, 255, 0.03);
    padding: 40px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.identity-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 107, 0, 0.3);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 25px;
    color: var(--color-accent);
}

.identity-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
}

.identity-card p {
    color: var(--color-text-dim);
    font-size: 0.95rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .header-container {
        padding: 0 20px;
    }

    .main-nav {
        display: none;
    }
    
    /* Mobile Menu Open State */
    .main-nav.menu-open {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: rgba(2, 11, 22, 0.98);
        backdrop-filter: blur(10px);
        padding: 30px 20px;
        border-bottom: 1px solid rgba(255, 107, 0, 0.3);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        z-index: 999;
        animation: slideDown 0.3s ease;
    }
    
    .main-nav.menu-open ul {
        flex-direction: column;
        width: 100%;
        align-items: center;
        gap: 15px;
    }
    
    .main-nav.menu-open li {
        width: 100%;
        text-align: center;
    }
    
    .main-nav.menu-open a {
        display: block;
        padding: 12px 20px;
        font-size: 1.1rem;
        border-radius: 8px;
        transition: all 0.3s ease;
    }
    
    .main-nav.menu-open a:hover {
        background: rgba(255, 107, 0, 0.1);
    }
    
    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .mobile-menu-btn {
        display: flex;
    }
    
    /* Hamburger animation when active */
    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
    }

    .hero-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}

/* =========================================
   Services & Partnership
   ========================================= */
.services {
    background: var(--color-primary-dark);
}

.service-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.02) 0%, rgba(255, 255, 255, 0.01) 100%);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: var(--border-radius);
    height: 100%;
}

.service-card h3 {
    color: var(--color-accent);
    margin-bottom: 15px;
}

/* =========================================
   Process (Timeline)
   ========================================= */
.process {
    background: var(--color-bg-dark);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    position: relative;
    margin-top: 40px;
}

.step-card {
    text-align: center;
    position: relative;
    padding: 20px;
}

.step-icon {
    width: 60px;
    height: 60px;
    background: var(--color-primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.5rem;
    border: 2px solid var(--color-accent);
    box-shadow: 0 0 15px rgba(255, 107, 0, 0.2);
}

.step-number {
    position: absolute;
    top: 5px;
    right: 50%;
    transform: translateX(35px);
    background: var(--color-accent);
    color: white;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

/* =========================================
   Contact & Footer
   ========================================= */
.footer {
    background: linear-gradient(180deg, var(--color-bg-darkest) 0%, #000 100%);
    padding: 80px 0 0;
    border-top: 1px solid rgba(255, 107, 0, 0.2);
    position: relative;
}

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

.footer-brand p {
    color: var(--color-text-dim);
    margin-top: 15px;
    font-size: 0.95rem;
    line-height: 1.8;
}

.footer h4 {
    color: white;
    margin-bottom: 25px;
    font-size: 1.2rem;
    font-family: var(--font-heading);
    font-weight: 700;
    position: relative;
    padding-bottom: 12px;
}

.footer h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

/* Social Links */
.social-links {
    display: flex;
    gap: 15px;
    margin-top: 25px;
}

.social-link {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all var(--transition-smooth);
}

.social-link:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px var(--color-accent-glow);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

/* Contact List */
.contact-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.contact-list li {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    color: var(--color-text-dim);
    font-size: 0.95rem;
    align-items: flex-start;
}

.contact-list svg {
    flex-shrink: 0;
    color: var(--color-accent);
    margin-top: 2px;
}

.contact-list li div {
    line-height: 1.6;
}

/* Footer Bottom */
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 30px 0;
    background: rgba(0, 0, 0, 0.3);
}

.copyright {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-accent);
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px var(--color-accent-glow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-smooth);
    z-index: 999;
}

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

.back-to-top:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 30px var(--color-accent-glow-strong);
}

.back-to-top:active {
    transform: translateY(-1px) scale(0.98);
}

/* Responsive Footer */
@media (max-width: 768px) {

    /* =========================================
   Animations & Polish
   ========================================= */
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: all 0.8s ease-out;
    }

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

    .stagger-delay-1 {
        transition-delay: 0.1s;
    }

    .stagger-delay-2 {
        transition-delay: 0.2s;
    }

    .stagger-delay-3 {
        transition-delay: 0.3s;
    }

    /* Menu Open State (Mobile) */
    .main-nav.menu-open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background: rgba(2, 11, 22, 0.95);
        padding: 30px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        animation: slideDown 0.3s ease;
    }

    .main-nav.menu-open ul {
        flex-direction: column;
        width: 100%;
        align-items: center;
    }

    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
}