:root {
    /* Premium Dark Palette */
    --color-bg-dark: #0f172a; /* Slate 900 */
    --color-bg-darker: #020617; /* Slate 950 */
    --color-bg-light: #f8fafc; /* Slate 50 */
    
    --color-text-main: #f1f5f9; /* Slate 100 */
    --color-text-muted: #94a3b8; /* Slate 400 */
    
    --color-accent: #f97316; /* Orange 500 */
    --color-accent-hover: #ea580c; /* Orange 600 */
    --color-accent-dim: rgba(249, 115, 22, 0.1);
    
    --color-white: #ffffff;
    --color-border: rgba(255, 255, 255, 0.08);

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

    /* Layout */
    --container-width: 1200px;
    --header-height: 80px;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--color-bg-dark);
    color: var(--color-text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}

ul {
    list-style: none;
}

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

/* Typography Utilities */
.text-gradient {
    background: linear-gradient(135deg, #ff8a4c 0%, #ff4d00 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-left { text-align: left; }
.text-center { text-align: center; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 1.8rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1rem;
    letter-spacing: 0.01em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-hover));
    color: var(--color-white);
    border: 1px solid transparent;
    box-shadow: 0 4px 15px rgba(249, 115, 22, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    backdrop-filter: blur(4px);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--color-white);
    transform: translateY(-2px);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(15, 23, 42, 0.85); /* Dark slate transparency */
    backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-white);
    letter-spacing: -0.02em;
}

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

.nav-list {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--color-text-muted);
}

.nav-link:hover {
    color: var(--color-white);
}

.btn-cta-nav {
    padding: 0.6rem 1.2rem;
    background-color: var(--color-accent);
    color: var(--color-white) !important;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: background-color 0.2s;
}

.btn-cta-nav:hover {
    background-color: var(--color-accent-hover);
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-nav-toggle .bar {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    margin: 6px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: var(--header-height);
    padding-bottom: var(--spacing-lg);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(15, 23, 42, 0.7) 0%, rgba(2, 6, 23, 1) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-badge {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    backdrop-filter: blur(4px);
    animation: fadeInDown 0.8s ease-out;
}

.hero-title {
    font-size: 3.5rem; /* Fallback */
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    line-height: 1.1;
    color: var(--color-white);
    letter-spacing: -0.02em;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.trust-bar {
    margin-top: var(--spacing-sm);
    opacity: 0.7;
    animation: fadeIn 1s ease-out 1s both;
}

.trust-bar p {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.trust-logos {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    font-weight: 600;
    color: var(--color-text-muted);
}

/* Standard Section */
.section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

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

.section-darker {
    background-color: var(--color-bg-darker);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.section-light {
    background-color: var(--color-bg-light);
    color: var(--color-bg-dark);
}

.section-title {
    font-size: clamp(2rem, 3vw, 2.5rem);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-weight: 700;
}

.section-title-dark {
    color: var(--color-bg-dark);
}

/* Why Us / Bridge Section */
.bridge-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.bridge-text .section-title {
    margin-bottom: var(--spacing-md);
}

.lead-text {
    font-size: 1.2rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.check-list {
    margin-top: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.check-list li {
    display: flex;
    align-items: center;
    color: var(--color-text-muted);
}

.check-list li::before {
    content: "✓";
    color: var(--color-accent);
    font-weight: bold;
    margin-right: 0.5rem;
}

.code-block {
    background-color: #0d1117;
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    position: relative;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    overflow-x: auto;
}

.code-block::before {
    content: ""; /* IDE Dots */
    position: absolute;
    top: 15px;
    left: 15px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #ff5f56; /* Red */
    box-shadow: 15px 0 0 #ffbd2e, 30px 0 0 #27c93f; /* Yellow, Green */
}

.code-block pre {
    font-family: 'Fira Code', 'Menlo', monospace;
    font-size: 0.9rem;
    color: #e6edf3;
    margin-top: 1rem;
}

/* Solutions Grid */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(249, 115, 22, 0.3);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    background: var(--color-accent-dim);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

.card-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-white);
}

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

/* Comparison Section */
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.comparison-col {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
}

.comparison-col.manual {
    background-color: #fed7d7;
    color: #742a2a;
}

.comparison-col.auto {
    background-color: #c6f6d5;
    color: #22543d;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.comparison-col h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.comparison-col ul li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.comparison-col ul li::before {
    content: "•";
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Metrics / Results */
.story-card {
    background: rgba(255, 255, 255, 0.02);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    border: 1px solid var(--color-border);
}

.story-metric {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
    line-height: 1;
}

/* Booking Section */
.section-accent-gradient {
    background: linear-gradient(135deg, #101625 0%, #000000 100%);
    position: relative;
}

.section-accent-gradient::before {
    content: ""; /* Glow effect */
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60%;
    height: 60%;
    background: var(--color-accent);
    filter: blur(150px);
    opacity: 0.1;
    z-index: 0;
}

.booking-wrapper {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(20px);
}

.booking-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.audit-title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.audit-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
}

.booking-calendar {
    min-height: 600px;
    background: #fff;
    border-radius: var(--radius-md);
    overflow: hidden;
}

/* Footer */
.footer {
    background-color: var(--color-bg-darker);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.footer-info p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.footer-contact {
    text-align: right;
}

.footer-contact p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.footer-contact a {
    color: var(--color-accent);
}

.footer-bottom {
    text-align: center;
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--color-text-muted);
    font-size: 0.8rem;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Responsive */
@media (max-width: 900px) {
    .bridge-content {
        grid-template-columns: 1fr;
    }
    
    .booking-wrapper {
        grid-template-columns: 1fr;
        padding: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background-color: var(--color-bg-darker);
        padding: var(--spacing-md);
        transform: translateX(100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 999;
    }

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

    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .nav-link {
        font-size: 1.2rem;
    }

    .mobile-nav-toggle {
        display: block;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
    }
    
    .comparison-grid {
        grid-template-columns: 1fr;
    }
}