/* ==========================================================================
   Base Styles & CSS Variables
   ========================================================================== */
:root {
    /* Color Palette */
    --primary-dark: #0f172a;
    /* Deep Slate */
    --primary: #1e293b;
    /* Slate */
    --accent: #ca8a04;
    /* Deep Gold / Bronze */
    --accent-light: #fef08a;
    --text-main: #334155;
    /* Slate 700 */
    --text-light: #94a3b8;
    /* Slate 400 */
    --text-white: #f8fafc;
    --bg-main: #ffffff;
    --bg-light: #f1f5f9;
    /* Slate 100 */
    --bg-dark: #0f172a;
    /* Slate 900 */

    /* Layout & Spacing */
    --max-width: 1200px;
    --header-height: 80px;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 2rem;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;

    /* Transitions & Effects */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-bg-dark: rgba(15, 23, 42, 0.7);
    --glass-border: 1px solid rgba(255, 255, 255, 0.2);
}

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

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

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

h1,
h2,
h3,
h4,
.logo-text,
.section-title {
    font-family: var(--font-serif);
    color: var(--primary-dark);
    line-height: 1.2;
}

p {
    margin-bottom: 1.5rem;
}

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

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

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ==========================================================================
   Typography & Utilities
   ========================================================================== */
.lead-text {
    font-size: 1.25rem;
    color: var(--primary);
    font-weight: 500;
}

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

.mt-xl {
    margin-top: var(--spacing-xl);
}

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

.section-tag {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 1rem;
}

.section-title {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 3rem;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary {
    background-color: var(--text-white);
    color: var(--primary-dark) !important;
    box-shadow: var(--shadow-md);
}

.navbar.scrolled .btn-primary {
    background-color: var(--primary-dark);
    color: var(--text-white) !important;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--accent) 0%, transparent 100%);
    opacity: 0;
    z-index: -1;
    transition: var(--transition-smooth);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover::before {
    opacity: 0.2;
}

.navbar.scrolled .btn-primary:hover::before {
    background: linear-gradient(135deg, var(--accent-light) 0%, transparent 100%);
    opacity: 0.1;
}

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

.btn-secondary:hover {
    background-color: var(--primary-dark);
    color: var(--text-white);
}

.btn-large {
    padding: 1rem 3rem;
    font-size: 1.125rem;
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: var(--header-height);
    background: transparent;
    z-index: 1000;
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
    border-bottom: var(--glass-border);
}

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

.logo-text {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-white);
    /* Updated default to white for contrast against dark hero */
    transition: var(--transition-fast);
}

.navbar.scrolled .logo-text {
    color: var(--primary-dark);
}

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

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    font-weight: 500;
    color: var(--text-white);
    /* Updated default to white */
    position: relative;
    transition: var(--transition-fast);
}

.navbar.scrolled .nav-link:not(.btn-primary) {
    color: var(--primary-dark);
    /* Switch to dark on scroll */
}

.nav-link:not(.btn-primary)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: var(--transition-smooth);
}

.nav-link:not(.btn-primary):hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 2000;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease-in-out;
    background-color: var(--text-white);
}

.navbar.scrolled .bar {
    background-color: var(--primary-dark);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    background-color: var(--bg-dark);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Gradient placeholder for high-end feel */
    background: radial-gradient(circle at 70% 30%, rgba(20, 30, 50, 0.8) 0%, var(--bg-dark) 100%),
        linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(30, 41, 59, 0.95) 100%);
    z-index: 0;
}

/* Adding an animated gradient mesh effect via before/after */
.hero-background::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(202, 138, 4, 0.05) 0%, transparent 40%);
    animation: rotate 30s linear infinite;
}

@keyframes rotate {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.hero-content {
    position: relative;
    z-index: 10;
    color: var(--text-white);
    max-width: 800px;
}

.hero-title {
    color: var(--text-white);
    font-size: clamp(3rem, 5vw, 5rem);
    margin-bottom: 1.5rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s var(--transition-smooth) forwards;
    animation-delay: 0.2s;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2.5rem;
    max-width: 650px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s var(--transition-smooth) forwards;
    animation-delay: 0.4s;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s var(--transition-smooth) forwards;
    animation-delay: 0.6s;
}

.hero .btn-secondary {
    border-color: rgba(255, 255, 255, 0.3);
    color: var(--text-white);
}

.hero .btn-secondary:hover {
    background-color: var(--text-white);
    color: var(--primary-dark);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    opacity: 0;
    animation: fadeUp 0.8s var(--transition-smooth) forwards;
    animation-delay: 1s;
}

.mouse {
    width: 30px;
    height: 45px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    display: block;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--text-white);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite cubic-bezier(0.15, 0.41, 0.69, 0.94);
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }

    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(15px);
    }
}

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

/* ==========================================================================
   Sections Grid & Layout
   ========================================================================== */
.section {
    padding: var(--spacing-xl) 0;
}

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.layout-2col {
    grid-template-columns: 1fr 1fr;
    align-items: center;
}

.layout-3col {
    grid-template-columns: repeat(3, 1fr);
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-text {
    padding-right: var(--spacing-md);
}

.stats-row {
    display: flex;
    gap: 3rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.stat-number {
    display: block;
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 3rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-smooth);
}

.decorative-card {
    position: relative;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    overflow: hidden;
}

.decorative-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, var(--accent-light) 0%, transparent 70%);
    opacity: 0.5;
    transform: translate(30%, -30%);
}

/* ==========================================================================
   Features / Approach
   ========================================================================== */
.feature-card {
    background: #ffffff;
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin-bottom: 1.5rem;
    transition: var(--transition-fast);
}

.feature-card:hover .feature-icon {
    background: var(--primary-dark);
    color: var(--text-white);
}

.feature-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.signature {
    margin-top: 2rem;
}

.signature-img {
    height: 80px;
    margin: 0 auto;
    filter: invert(15%) sepia(31%) saturate(541%) hue-rotate(178deg) brightness(96%) contrast(92%);
}

.signature-title {
    display: block;
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 0.5rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* ==========================================================================
   CTA Section
   ========================================================================== */
.cta-section {
    position: relative;
    padding: 8rem 0;
    background-color: var(--primary-dark);
    color: var(--text-white);
    overflow: hidden;
}

.cta-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 10% 90%, rgba(202, 138, 4, 0.15) 0%, transparent 50%);
}

.cta-content {
    position: relative;
    z-index: 10;
}

.cta-title {
    color: var(--text-white);
    font-size: clamp(2.5rem, 4vw, 4rem);
    margin-bottom: 1rem;
}

.cta-text {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2.5rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background-color: #020617;
    /* Very Dark Slate */
    color: #cbd5e1;
    padding: 6rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer .logo-text {
    color: var(--text-white);
    display: inline-block;
    margin-bottom: 1rem;
}

.footer h4 {
    color: var(--text-white);
    font-family: var(--font-sans);
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.footer p {
    margin-bottom: 0.5rem;
    font-size: 0.9375rem;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.875rem;
    color: #64748b;
}

/* ==========================================================================
   Animations
   ========================================================================== */
.fade-in-section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    will-change: opacity, visibility;
}

.fade-in-section.is-visible {
    opacity: 1;
    transform: none;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 900px) {

    .layout-2col,
    .layout-3col {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .about-text {
        padding-right: 0;
        margin-bottom: 3rem;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .mobile-menu-btn.active .bar:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-btn.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .mobile-menu-btn.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .nav-links {
        position: fixed;
        left: -100%;
        top: var(--header-height);
        flex-direction: column;
        background-color: var(--bg-main);
        width: 100%;
        height: calc(100vh - var(--header-height));
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1);
        padding: 2rem;
        gap: 2rem;
    }

    .nav-links.active .nav-link {
        color: var(--primary-dark);
    }

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

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

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

    .stats-row {
        gap: 1.5rem;
    }

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