/* ============================================
   LUXURY BRAND DESIGN SYSTEM
   ============================================ */

:root {
    /* Primary Colors - Refined Luxury Palette */
    --primary: #06b6d4;
    --primary-light: #22d3ee;
    --primary-dark: #0891b2;

    /* Accent - Gold for Premium Feel */
    --accent-gold: #d4af37;
    --accent-gold-light: #e8c547;
    --accent-gold-dark: #b8931f;

    /* Dark Luxury Theme */
    --bg-dark: #0a0e1a;
    --bg-darker: #050711;
    --bg-card: rgba(15, 23, 42, 0.4);
    --bg-card-hover: rgba(15, 23, 42, 0.6);

    /* Text Colors */
    --text-main: #f0f4f8;
    --text-light: #cbd5e1;
    --text-muted: #94a3b8;

    /* Borders & Accents */
    --border-subtle: rgba(255, 255, 255, 0.05);
    --border-light: rgba(255, 255, 255, 0.1);
    --border-gold: rgba(212, 175, 55, 0.3);

    /* Spacing System */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Transitions */
    --transition-fast: 200ms ease;
    --transition-normal: 400ms ease;
    --transition-smooth: 600ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Typography */
    --font-sans: 'Plus Jakarta Sans', 'Poppins', system-ui, -apple-system, 'Segoe UI';
    --font-serif: 'Playfair Display', serif;

    /* Z-Index */
    --z-dropdown: 1000;
    --z-modal: 1050;
    --z-popover: 1100;
}

/* ============================================
   GLOBAL STYLES
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    font-size: 16px;
    letter-spacing: 0.3px;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

header {
    background: linear-gradient(
        180deg,
        rgba(10, 14, 26, 0.95) 0%,
        rgba(10, 14, 26, 0.8) 100%
    );
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    padding: var(--space-lg) 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: var(--z-dropdown);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 1px;
    background: linear-gradient(135deg, #f0f4f8, var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    position: relative;
    z-index: 1001;
}

.logo::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-gold), transparent);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.logo:hover::after {
    opacity: 1;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--space-xl);
    align-items: center;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    transition: color var(--transition-fast);
    padding: 0.5rem 0;
}

.nav-links a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    width: 0;
    background: var(--accent-gold);
    transition: width var(--transition-normal);
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-links a:hover::before {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    position: relative;
    z-index: 1001;
}

.phone-link, .mail-link {
    color: var(--text-main);
    background: rgba(212, 175, 55, 0.08);
    border: 1px solid var(--border-gold);
    padding: 10px 14px;
    border-radius: 12px;
    font-weight: 700;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    transition: all var(--transition-normal);
    min-width: 44px;
    min-height: 44px;
    justify-content: center;
}

.phone-link:hover, .mail-link:hover {
    background: var(--accent-gold);
    color: var(--bg-dark);
    border-color: var(--accent-gold);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(212, 175, 55, 0.3);
}

/* Mobile Menu */
#nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.8rem;
    cursor: pointer;
    z-index: 1002;
}

@media (max-width: 768px) {
    nav { padding: 0 var(--space-lg); }

    .nav-links {
        position: fixed;
        top: 70px;
        right: 0;
        left: auto;
        width: 100%;
        max-width: 280px;
        background: rgba(10, 14, 26, 0.98);
        border-radius: 0 0 20px 0;
        padding: var(--space-xl);
        flex-direction: column;
        gap: var(--space-lg);
        display: none;
        z-index: 999;
        box-shadow: -4px 8px 30px rgba(0, 0, 0, 0.5);
    }

    .nav-links.open { display: flex; }

    #nav-toggle { display: block; }

    .nav-actions { gap: var(--space-sm); }
    .phone-link, .mail-link { padding: 8px 10px; font-size: 0.8rem; }
}

/* ============================================
   HERO SECTION - PREMIUM EDITION
   ============================================ */

.hero {
    padding: 200px var(--space-xl) 120px;
    text-align: center;
    background: linear-gradient(
        135deg,
        rgba(10, 14, 26, 0) 0%,
        rgba(6, 182, 212, 0.08) 50%,
        rgba(10, 14, 26, 0) 100%
    );
    position: relative;
    overflow: hidden;
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.1), transparent);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
    z-index: -1;
}

@keyframes float {
    0%, 100% { transform: translateY(0) translateX(0); }
    50% { transform: translateY(-30px) translateX(-20px); }
}

.hero h1 {
    font-family: var(--font-serif);
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-2xl);
    letter-spacing: -1px;
    color: var(--text-main);
}

.hero h1 span {
    background: linear-gradient(135deg, var(--primary-light), var(--accent-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
    font-weight: 400;
}

/* ============================================
   CTA BUTTONS
   ============================================ */

.cta-group {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.cta-button, .cta-secondary {
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    min-height: 50px;
}

.cta-button {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    border: none;
    box-shadow: 0 10px 30px rgba(6, 182, 212, 0.3);
}

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

.cta-button:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(6, 182, 212, 0.5);
    color: #fff;
}

.cta-button:hover::before {
    left: 0;
    opacity: 0.1;
}

.cta-secondary {
    background: rgba(212, 175, 55, 0.1);
    border: 2px solid var(--border-gold);
    color: var(--text-main);
}

.cta-secondary:hover {
    background: var(--accent-gold);
    border-color: var(--accent-gold);
    color: var(--bg-dark);
    transform: translateY(-4px);
    box-shadow: 0 15px 35px rgba(212, 175, 55, 0.35);
}

@media (max-width: 768px) {
    .hero { padding: 140px var(--space-lg) 80px; }
    .hero h1 { font-size: 2.5rem; }
    .cta-group { flex-direction: column; gap: var(--space-lg); width: 100%; }
    .cta-button, .cta-secondary { width: 100%; justify-content: center; }
}

/* ============================================
   CONTAINER & SECTIONS
   ============================================ */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 120px var(--space-xl);
}

.section-tag {
    color: var(--accent-gold);
    text-transform: uppercase;
    font-weight: 800;
    font-size: 0.75rem;
    letter-spacing: 2.5px;
    display: block;
    text-align: center;
    margin-bottom: var(--space-lg);
}

.section-title {
    text-align: center;
    font-family: var(--font-serif);
    font-size: 3.5rem;
    margin-bottom: var(--space-3xl);
    font-weight: 800;
    color: var(--text-main);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent-gold));
    margin: var(--space-lg) auto 0;
    border-radius: 2px;
}

/* ============================================
   SERVICE CARDS - PREMIUM GRID
   ============================================ */

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--space-2xl);
    margin-top: var(--space-2xl);
}

.service-card {
    background: linear-gradient(135deg, var(--bg-card), rgba(15, 23, 42, 0.2));
    border: 1px solid var(--border-light);
    padding: var(--space-3xl) var(--space-2xl);
    border-radius: 24px;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-gold), transparent);
    opacity: 0;
    transition: opacity var(--transition-smooth);
}

.service-card:hover {
    border-color: var(--border-gold);
    background: linear-gradient(135deg, var(--bg-card-hover), rgba(6, 182, 212, 0.1));
    transform: translateY(-12px);
    box-shadow: 0 30px 60px rgba(6, 182, 212, 0.2), 0 0 1px var(--border-gold);
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--space-lg);
    display: block;
    transition: transform var(--transition-smooth);
}

.service-card:hover .service-icon {
    transform: scale(1.15) rotate(5deg);
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: var(--space-lg);
    color: var(--text-main);
    font-weight: 700;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.8;
}

/* Special highlight for featured card */
.service-card.featured {
    grid-column: auto / span 1;
    border: 2px solid var(--accent-gold);
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.05), rgba(6, 182, 212, 0.05));
}

@media (max-width: 768px) {
    .container { padding: 80px var(--space-lg); }
    .section-title { font-size: 2rem; }
    .services-grid { grid-template-columns: 1fr; gap: var(--space-xl); }
    .service-card { padding: var(--space-2xl) var(--space-lg); }
}

/* ============================================
   TOOL PREVIEW / FEATURE SECTION
   ============================================ */

.tool-preview {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.05), rgba(212, 175, 55, 0.02));
    border: 1px solid var(--border-gold);
    border-radius: 40px;
    padding: var(--space-3xl);
    margin-top: var(--space-3xl);
    position: relative;
    overflow: hidden;
}

.tool-preview::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.08), transparent);
    border-radius: 50%;
    z-index: 0;
}

.tool-preview > * {
    position: relative;
    z-index: 1;
}

.tool-preview h2 {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    margin-bottom: var(--space-lg);
    color: var(--text-main);
}

.tool-preview p {
    color: var(--text-muted);
    margin-bottom: var(--space-2xl);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
}

.feature-item {
    color: var(--text-muted);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.feature-item::before {
    content: '✓';
    color: var(--accent-gold);
    font-weight: 800;
    font-size: 1.2rem;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .tool-preview { padding: var(--space-2xl); }
    .tool-preview h2 { font-size: 1.5rem; }
    .features-grid { grid-template-columns: 1fr; }
}

/* ============================================
   FOOTER
   ============================================ */

footer {
    border-top: 1px solid var(--border-light);
    padding: var(--space-3xl) var(--space-xl);
    background: linear-gradient(
        180deg,
        rgba(10, 14, 26, 0.5) 0%,
        var(--bg-darker) 100%
    );
    position: relative;
}

/* Trusted Clients Banner */
.trusted-banner {
    max-width: 1100px;
    margin: 0 auto var(--space-2xl);
    overflow: hidden;
    padding: var(--space-lg) 0;
}

.trusted-label {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-lg);
    font-weight: 700;
}

.trusted-scroll {
    display: flex;
    gap: var(--space-lg);
    animation: scroll-left 40s linear infinite;
}

.trusted-track {
    display: flex;
    gap: var(--space-lg);
    align-items: center;
}

.client {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 100px;
    min-height: 60px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(212, 175, 55, 0.05));
    border: 1px solid var(--border-light);
    color: var(--text-light);
    font-weight: 700;
    font-size: 0.85rem;
    padding: var(--space-md);
    text-align: center;
    transition: all var(--transition-normal);
    white-space: nowrap;
    flex-shrink: 0;
}

.client:hover {
    border-color: var(--accent-gold);
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.15), rgba(6, 182, 212, 0.1));
    box-shadow: 0 8px 20px rgba(212, 175, 55, 0.2);
    transform: translateY(-4px);
}

.trusted-banner:hover .trusted-scroll {
    animation-play-state: paused;
}

@keyframes scroll-left {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
    .trusted-scroll { animation: none; }
}

.footer-content {
    text-align: center;
    max-width: 1100px;
    margin: var(--space-2xl) auto 0;
}

.footer-logo {
    font-size: 1.3rem;
    font-weight: 800;
    background: linear-gradient(90deg, var(--text-main), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-lg);
    display: inline-block;
}

.footer-links {
    display: flex;
    gap: var(--space-2xl);
    justify-content: center;
    margin: var(--space-2xl) 0;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-normal);
    position: relative;
}

.footer-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gold);
    transition: width var(--transition-normal);
}

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

.footer-links a:hover::after {
    width: 100%;
}

.footer-credit {
    color: var(--text-muted);
    font-size: 0.8rem;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-subtle);
    margin-top: var(--space-2xl);
}

@media (max-width: 768px) {
    footer { padding: var(--space-2xl) var(--space-lg); }
    .footer-links { gap: var(--space-lg); }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.premium-card {
    background: var(--bg-card);
    border: 1px solid var(--border-gold);
    border-radius: 20px;
    padding: var(--space-2xl);
    transition: all var(--transition-smooth);
}

.premium-card:hover {
    box-shadow: 0 20px 40px rgba(212, 175, 55, 0.25);
    transform: translateY(-8px);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--accent-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.luxury-shadow {
    box-shadow:
        0 4px 15px rgba(0, 0, 0, 0.2),
        0 8px 30px rgba(6, 182, 212, 0.1),
        0 0 1px var(--border-gold);
}

.smooth-transition {
    transition: all var(--transition-smooth);
}

.responsive-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-2xl);
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .nav-links { gap: var(--space-lg); }
    .hero h1 { font-size: 3.5rem; }
    .section-title { font-size: 2.5rem; }
}

@media (max-width: 480px) {
    :root {
        font-size: 14px;
    }

    .hero {
        padding: 120px var(--space-lg) 60px;
        min-height: auto;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .nav-actions {
        gap: var(--space-sm);
    }

    .phone-link, .mail-link {
        padding: 8px;
        min-width: 40px;
        min-height: 40px;
    }

    .container {
        padding: 60px var(--space-lg);
    }

    .section-title {
        font-size: 1.75rem;
    }

    .footer-links {
        gap: var(--space-lg);
    }
}