/* ================================
   BIOCARBON INDUSTRY - MAIN STYLES
   Dark, Elegant, Exclusive Design
   ================================ */

/* === ROOT VARIABLES === */
:root {
    /* Brand Colors */
    --color-dark-green: #0E2417;
    --color-black: #0C0CCC;
    --color-gold: #D8AE69;
    --color-cream: #F3F0EB;

    /* Extended Palette */
    --color-bg-primary: #000000;
    --color-bg-secondary: #0a0a0a;
    --color-bg-tertiary: #121212;
    --color-bg-card: rgba(14, 36, 23, 0.4);
    --color-bg-card-hover: rgba(14, 36, 23, 0.6);

    /* Text Colors */
    --color-text-primary: #F3F0EB;
    --color-text-secondary: rgba(243, 240, 235, 0.7);
    --color-text-muted: rgba(243, 240, 235, 0.5);

    /* Accent Colors */
    --color-accent-primary: #D8AE69;
    --color-accent-secondary: #0E2417;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, rgba(14, 36, 23, 0.9) 0%, rgba(0, 0, 0, 0.95) 100%);
    --gradient-gold: linear-gradient(135deg, #D8AE69 0%, #C9984A 100%);
    --gradient-overlay: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.8) 100%);

    /* Typography */
    --font-primary: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-xxl: 8rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-gold: 0 4px 24px rgba(216, 174, 105, 0.2);
}

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-secondary);
    font-weight: 300;
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* === ANIMATED BACKGROUND === */
.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(14, 36, 23, 0.3) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(216, 174, 105, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 40% 20%, rgba(14, 36, 23, 0.2) 0%, transparent 50%);
    z-index: -2;
    animation: gradientShift 20s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: clamp(2.5rem, 8vw, 5rem); }
h2 { font-size: clamp(2rem, 6vw, 3.5rem); }
h3 { font-size: clamp(1.5rem, 4vw, 2rem); }

p {
    margin-bottom: var(--spacing-sm);
}

.lead {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

a {
    color: var(--color-accent-primary);
    text-decoration: none;
    transition: var(--transition-base);
}

a:hover {
    color: var(--color-cream);
}

/* === CONTAINER === */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
}

/* === NAVIGATION === */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(216, 174, 105, 0.1);
    transition: var(--transition-base);
}

.nav.scrolled {
    background: rgba(0, 0, 0, 0.95);
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 50px;
    width: auto;
    transition: var(--transition-base);
}

.logo:hover img {
    transform: scale(1.05);
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.logo-bio {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-cream);
}

.logo-industry {
    font-family: var(--font-secondary);
    font-weight: 300;
    font-size: 0.75rem;
    color: var(--color-gold);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    font-family: var(--font-secondary);
    font-weight: 400;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-gold);
    transition: var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-gold);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.lang-switcher {
    display: flex;
    gap: 0.5rem;
}

.lang-btn {
    background: transparent;
    border: 1px solid rgba(216, 174, 105, 0.3);
    color: var(--color-text-secondary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition-base);
}

.lang-btn:hover,
.lang-btn.active {
    background: var(--gradient-gold);
    color: var(--color-bg-primary);
    border-color: var(--color-gold);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 0.25rem;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--color-gold);
    transition: var(--transition-base);
}

/* === BUTTONS === */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-base);
    border: none;
    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, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

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

.btn-primary {
    background: var(--gradient-gold);
    color: var(--color-bg-primary);
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 32px rgba(216, 174, 105, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-gold);
    border: 2px solid var(--color-gold);
}

.btn-secondary:hover {
    background: rgba(216, 174, 105, 0.1);
    transform: translateY(-2px);
}

.cta-button {
    background: var(--gradient-gold);
    color: var(--color-bg-primary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: var(--shadow-gold);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 32px rgba(216, 174, 105, 0.3);
}

/* === SECTIONS === */
section {
    padding: var(--spacing-xxl) 0;
    position: relative;
}

.section-header {
    margin-bottom: var(--spacing-lg);
}

.section-header.centered {
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--spacing-lg);
}

.section-tag {
    display: inline-block;
    font-family: var(--font-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-gold);
    margin-bottom: var(--spacing-sm);
    padding: 0.5rem 1rem;
    background: rgba(216, 174, 105, 0.1);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(216, 174, 105, 0.2);
}

.section-title {
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
}

.section-description {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    max-width: 700px;
}

/* === HERO SECTION === */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 100px;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-content {
    z-index: 2;
}

.hero-title {
    font-weight: 100;
    margin-bottom: var(--spacing-md);
}

.hero-title .line {
    display: block;
}

.hero-title .highlight {
    font-weight: 800;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: var(--spacing-lg);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(216, 174, 105, 0.1);
    backdrop-filter: blur(10px);
    transition: var(--transition-base);
}

.stat-item:hover {
    background: var(--color-bg-card-hover);
    border-color: rgba(216, 174, 105, 0.3);
    transform: translateY(-5px);
}

.stat-number {
    font-family: var(--font-primary);
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* === HERO VISUAL === */
.hero-visual {
    position: relative;
    height: 500px;
}

.floating-card {
    position: absolute;
    padding: 1.5rem 2rem;
    background: var(--color-bg-card);
    border: 1px solid rgba(216, 174, 105, 0.2);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition-slow);
}

.floating-card:hover {
    background: var(--color-bg-card-hover);
    border-color: rgba(216, 174, 105, 0.4);
    transform: translateY(-10px);
}

.card-icon {
    font-size: 2.5rem;
}

.card-text {
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--color-cream);
}

.card-1 {
    top: 10%;
    left: 10%;
    animation: float 6s ease-in-out infinite;
}

.card-2 {
    top: 45%;
    right: 5%;
    animation: float 8s ease-in-out infinite;
    animation-delay: 1s;
}

.card-3 {
    bottom: 15%;
    left: 20%;
    animation: float 7s ease-in-out infinite;
    animation-delay: 2s;
}

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

/* === SCROLL INDICATOR === */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--color-gold);
    border-radius: 20px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--color-gold);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { opacity: 1; top: 8px; }
    100% { opacity: 0; top: 20px; }
}

/* === ABOUT SECTION === */
.about {
    background: var(--color-bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.feature-item {
    padding: var(--spacing-md);
    background: var(--color-bg-card);
    border: 1px solid rgba(216, 174, 105, 0.1);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.feature-item:hover {
    background: var(--color-bg-card-hover);
    border-color: rgba(216, 174, 105, 0.3);
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.feature-item h3 {
    font-size: 1.25rem;
    color: var(--color-gold);
    margin-bottom: var(--spacing-xs);
}

.feature-item p {
    color: var(--color-text-secondary);
    margin: 0;
}

.about-visual {
    position: relative;
}

.product-visual {
    position: sticky;
    top: 120px;
    align-self: start;
}

.visual-card,
.product-image-placeholder {
    background: var(--color-bg-card);
    border: 1px solid rgba(216, 174, 105, 0.2);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.visual-placeholder,
.placeholder-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    font-size: 4rem;
}

.visual-placeholder p {
    margin-top: var(--spacing-md);
    font-family: var(--font-primary);
    font-size: 1.5rem;
    color: var(--color-gold);
}

/* === TECHNOLOGY SECTION === */
.technology {
    background: var(--gradient-primary);
}

.tech-process {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.process-step {
    padding: var(--spacing-lg);
    background: var(--color-bg-card);
    border: 1px solid rgba(216, 174, 105, 0.1);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.process-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-slow);
}

.process-step:hover::before {
    transform: scaleX(1);
}

.process-step:hover {
    background: var(--color-bg-card-hover);
    border-color: rgba(216, 174, 105, 0.3);
    transform: translateY(-10px);
}

.step-number {
    font-family: var(--font-primary);
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.step-content h3 {
    color: var(--color-cream);
    margin-bottom: var(--spacing-xs);
}

.step-content p {
    color: var(--color-text-secondary);
    margin: 0;
}

/* === PRODUCT SECTION === */
.product {
    background: var(--color-bg-secondary);
}

.product-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.product-specs,
.product-applications {
    margin: var(--spacing-lg) 0;
}

.product-specs h3,
.product-applications h3 {
    color: var(--color-gold);
    margin-bottom: var(--spacing-md);
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.spec-item {
    padding: var(--spacing-md);
    background: var(--color-bg-card);
    border: 1px solid rgba(216, 174, 105, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.spec-label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.spec-value {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gold);
}

.applications-list {
    list-style: none;
}

.applications-list li {
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    background: var(--color-bg-card);
    border-left: 3px solid var(--color-gold);
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

.applications-list li:hover {
    background: var(--color-bg-card-hover);
    transform: translateX(10px);
}

/* === IMPACT SECTION === */
.impact {
    background: var(--gradient-primary);
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.impact-card {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--color-bg-card);
    border: 1px solid rgba(216, 174, 105, 0.1);
    border-radius: var(--radius-xl);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.impact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 4px;
    background: var(--gradient-gold);
    border-radius: 0 0 4px 4px;
}

.impact-card:hover {
    background: var(--color-bg-card-hover);
    border-color: rgba(216, 174, 105, 0.3);
    transform: translateY(-10px);
}

.impact-number {
    font-family: var(--font-primary);
    font-size: 5rem;
    font-weight: 700;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--spacing-md);
}

.impact-label {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-cream);
    margin-bottom: var(--spacing-sm);
}

.impact-description {
    font-size: 1rem;
    color: var(--color-text-secondary);
}

/* === PARTNERS SECTION === */
.partners {
    background: var(--color-bg-secondary);
    padding: var(--spacing-xl) 0;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.partner-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: var(--color-bg-card);
    border: 1px solid rgba(216, 174, 105, 0.1);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.partner-logo:hover {
    background: var(--color-bg-card-hover);
    border-color: rgba(216, 174, 105, 0.3);
    transform: translateY(-5px);
}

.partner-placeholder {
    font-family: var(--font-primary);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-gold);
}

/* === CONTACT SECTION === */
.contact {
    background: var(--gradient-primary);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.contact-details {
    margin-top: var(--spacing-lg);
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    border: 1px solid rgba(216, 174, 105, 0.1);
}

.contact-icon {
    font-size: 2rem;
}

.contact-label {
    font-weight: 600;
    color: var(--color-gold);
    margin-bottom: var(--spacing-xs);
}

/* === FORM === */
.contact-form-wrapper {
    background: var(--color-bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(216, 174, 105, 0.2);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--color-gold);
    margin-bottom: var(--spacing-xs);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(216, 174, 105, 0.2);
    border-radius: var(--radius-md);
    color: var(--color-cream);
    font-family: var(--font-secondary);
    font-size: 1rem;
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-gold);
    background: rgba(0, 0, 0, 0.5);
    box-shadow: 0 0 0 3px rgba(216, 174, 105, 0.1);
}

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

/* === FOOTER === */
.footer {
    background: var(--color-bg-primary);
    border-top: 1px solid rgba(216, 174, 105, 0.1);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-tagline {
    color: var(--color-text-secondary);
    margin-top: var(--spacing-sm);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.footer-column h4 {
    color: var(--color-gold);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: var(--spacing-sm);
}

.footer-column a {
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-gold);
    transform: translateX(5px);
    display: inline-block;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(216, 174, 105, 0.1);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* === RESPONSIVE === */
@media (max-width: 1200px) {
    .hero .container,
    .about-content,
    .product-layout,
    .contact-layout {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        display: none;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(0, 0, 0, 0.98);
        flex-direction: column;
        padding: var(--spacing-lg);
        transition: var(--transition-base);
    }

    .nav-menu.active {
        left: 0;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }

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

    .features-grid,
    .tech-process,
    .specs-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    section {
        padding: var(--spacing-lg) 0;
    }
}