/* Base Tokens and Variables */
:root {
    /* Colors */
    --bg-base: #050505;
    --bg-surface: #0a0a0a;
    --bg-glass: rgba(15, 15, 15, 0.6);
    --bg-glass-hover: rgba(25, 25, 25, 0.8);
    
    --text-primary: #f5f5f5;
    --text-secondary: #a3a3a3;
    
    --accent-primary: #d4af37; /* Premium Gold */
    --accent-primary-glow: rgba(212, 175, 55, 0.3);
    --accent-primary-hover: #e8c658;
    
    --accent-secondary: #1a1a1a;
    
    --border-glass: rgba(255, 255, 255, 0.05);
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 2rem;
    --space-xl: 4rem;
    --space-2xl: 8rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Typography */
h1, h2, h3, h4, .logo {
    font-family: var(--font-heading);
    line-height: 1.1;
    color: #ffffff;
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 900; letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; margin-bottom: var(--space-md); }
h3 { font-size: 1.5rem; font-weight: 600; margin-bottom: var(--space-sm); }
p { margin-bottom: var(--space-md); color: var(--text-secondary); }
a { text-decoration: none; color: inherit; transition: var(--transition-fast); }

.highlight {
    color: var(--accent-primary);
    text-shadow: 0 0 20px var(--accent-primary-glow);
}

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section {
    padding: var(--space-2xl) 0;
    position: relative;
    z-index: 10;
}

.grid {
    display: grid;
    gap: var(--space-xl);
}

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

/* Ambient Effects */
.ambient-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    z-index: 0;
    pointer-events: none;
}

.bg-glow-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(212,175,55,0.1) 0%, rgba(5,5,5,0) 70%);
}

.bg-glow-2 {
    bottom: 20%;
    right: -20%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, rgba(5,5,5,0) 70%);
}

/* UI Components */
.glass {
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
}

.glass-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: var(--space-xl);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(180deg, rgba(255,255,255,0.03) 0%, transparent 100%);
    opacity: 0;
    transition: var(--transition-base);
}

.glass-card:hover {
    transform: translateY(-5px);
    border-color: rgba(212, 175, 55, 0.2);
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

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

.badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(212, 175, 55, 0.1);
    color: var(--accent-primary);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
    border: 1px solid rgba(212, 175, 55, 0.2);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-base);
    font-family: var(--font-body);
}

.btn-primary {
    background: var(--accent-primary);
    color: #000;
    border: none;
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.2);
}

.btn-primary:hover {
    background: var(--accent-primary-hover);
    box-shadow: 0 0 30px rgba(212, 175, 55, 0.4);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-glass);
}

.btn-secondary:hover {
    background: var(--bg-glass-hover);
    border-color: var(--text-secondary);
}

.btn-large {
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0; left: 0; width: 100%;
    z-index: 1000;
    border-bottom: 1px solid var(--border-glass);
    transition: var(--transition-base);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 1.5rem;
    letter-spacing: -0.05em;
    display: flex;
}

.logo-kaizen { font-weight: 900; color: #fff; }
.logo-due { font-weight: 400; color: var(--accent-primary); margin-left: 2px;}

.nav-links {
    display: flex;
    gap: var(--space-lg);
    list-style: none;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
    z-index: 1001;
}

.mobile-menu-btn .bar {
    position: absolute;
    width: 100%;
    height: 2px;
    background: #fff;
    transition: var(--transition-base);
}
.mobile-menu-btn .bar:nth-child(1) { top: 0; }
.mobile-menu-btn .bar:nth-child(2) { bottom: 0; }

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    position: relative;
    z-index: 10;
    background: linear-gradient(to right, rgba(5,5,5,0.95) 20%, rgba(5,5,5,0.7) 100%), url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?q=80&w=1920&auto=format&fit=crop') center/cover no-repeat fixed;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; width: 100%; height: 150px;
    background: linear-gradient(to top, var(--bg-base), transparent);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
}

.hero-subtitle {
    font-size: 1.25rem;
    max-width: 600px;
    margin-bottom: var(--space-xl);
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* Problem Section */
.problem-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
}

.problem-cards {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.problem-card {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.card-icon {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 900;
    color: var(--accent-primary);
    opacity: 0.3;
}

/* Methodology Section */
.methods-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    margin-top: var(--space-xl);
}

.method-card {
    text-align: left;
}

.method-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 900;
    color: var(--border-glass);
    margin-bottom: var(--space-md);
    transition: var(--transition-base);
}

.method-card:hover .method-number {
    color: var(--accent-primary-glow);
}

/* Background Utility Classes for Cards */
.bg-img-1 { background: linear-gradient(rgba(10,10,10,0.85), rgba(10,10,10,0.95)), url('https://images.unsplash.com/photo-1551288049-bebda4e38f71?q=80&w=600&auto=format&fit=crop') center/cover; }
.bg-img-2 { background: linear-gradient(rgba(10,10,10,0.85), rgba(10,10,10,0.95)), url('https://images.unsplash.com/photo-1460925895917-afdab827c52f?q=80&w=600&auto=format&fit=crop') center/cover; }
.bg-img-3 { background: linear-gradient(rgba(10,10,10,0.85), rgba(10,10,10,0.95)), url('https://images.unsplash.com/photo-1504384308090-c894fdcc538d?q=80&w=600&auto=format&fit=crop') center/cover; }
.bg-img-4 { background: linear-gradient(rgba(10,10,10,0.85), rgba(10,10,10,0.95)), url('https://images.unsplash.com/photo-1542744173-8e7e53415bb0?q=80&w=600&auto=format&fit=crop') center/cover; }
.bg-img-5 { background: linear-gradient(rgba(10,10,10,0.85), rgba(10,10,10,0.95)), url('https://images.unsplash.com/photo-1454165804606-c3d57bc86b40?q=80&w=600&auto=format&fit=crop') center/cover; }
.bg-img-6 { background: linear-gradient(rgba(10,10,10,0.85), rgba(10,10,10,0.95)), url('https://images.unsplash.com/photo-1534438327276-14e5300c3a48?q=80&w=600&auto=format&fit=crop') center/cover; }

/* Results Section */
.results-grid {
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    margin-top: var(--space-xl);
}

.result-card {
    padding: 0;
}

.result-placeholder {
    width: 100%;
    height: 300px;
    background: #111;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.result-overlay {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
}

.result-overlay span {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    background: rgba(0,0,0,0.5);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    color: var(--accent-primary);
}

.result-info {
    padding: var(--space-lg);
}

/* CTA Section */
.cta-box {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    border-color: rgba(212, 175, 55, 0.3);
    box-shadow: 0 0 50px rgba(212, 175, 55, 0.05);
}

.lead-form {
    margin-top: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.form-group input {
    width: 100%;
    padding: 1.2rem;
    background: rgba(0,0,0,0.5);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    color: #fff;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(212, 175, 55, 0.2);
}

/* Footer */
.footer {
    border-top: 1px solid var(--border-glass);
    padding: var(--space-xl) 0 var(--space-lg);
}

.footer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.footer-links {
    display: flex;
    gap: var(--space-md);
    font-size: 0.9rem;
}

.footer-address {
    text-align: center;
    font-size: 0.85rem;
    margin-top: var(--space-sm);
}

.footer-address p {
    margin-bottom: 0.1rem;
    color: var(--text-secondary);
}

.copyright {
    font-size: 0.8rem;
    margin-top: var(--space-md);
}

/* Animations */
.fade-up { opacity: 0; transform: translateY(30px); transition: var(--transition-slow); }
.fade-in-left { opacity: 0; transform: translateX(-40px); transition: var(--transition-slow); }
.fade-in-right { opacity: 0; transform: translateX(40px); transition: var(--transition-slow); }

.is-visible { opacity: 1; transform: translate(0); }

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* Responsive */
@media (max-width: 900px) {
    .problem-grid { grid-template-columns: 1fr; }
    h1 { font-size: 3rem; }
}

@media (max-width: 768px) {
    .nav-links, .navbar .btn-primary { display: none; }
    .mobile-menu-btn { display: block; }
    .hero-actions { flex-direction: column; width: 100%; }
    .hero-actions .btn { width: 100%; }
    .results-grid { grid-template-columns: 1fr; }
}