/* ============================================
   SKINAI - NUDE THEME COLOR PALETTE
   ============================================ */

:root {
    /* Nude Palette */
    --primary-nude: #D4A574;      /* Warm beige/tan */
    --secondary-nude: #E8D4C4;    /* Light nude */
    --tertiary-nude: #C9A876;     /* Medium tan */
    --dark-nude: #8B7355;         /* Dark brown */
    --light-nude: #F5EFE7;        /* Off-white */
    
    /* Accents */
    --accent-gold: #D4A574;       /* Gold accent */
    --accent-rose: #D4A5A5;       /* Soft rose */
    --text-dark: #3D3D3D;         /* Dark text */
    --text-light: #F5EFE7;        /* Light text */
    
    /* Functional */
    --success: #A8C686;           /* Soft green */
    --warning: #E8B4A8;           /* Soft coral */
    --error: #D4868C;             /* Soft red */
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Typography */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* ============================================
   RESET & GLOBAL STYLES
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-dark);
    background-color: var(--light-nude);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-dark);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

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

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

a:hover {
    color: var(--dark-nude);
}

/* ============================================
   NAVIGATION
   ============================================ */

.navbar {
    background: linear-gradient(135deg, var(--light-nude) 0%, #FAFAF8 100%);
    box-shadow: 0 2px 10px rgba(212, 165, 116, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
}

.logo {
    font-size: 1.75rem;
    color: var(--primary-nude);
    font-weight: 700;
    letter-spacing: -0.5px;
    margin: 0;
}

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

.nav-link {
    color: var(--text-dark);
    font-weight: 500;
    position: relative;
    transition: var(--transition);
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-nude);
    transition: var(--transition);
}

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

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

.btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-nude) 0%, var(--tertiary-nude) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(212, 165, 116, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(212, 165, 116, 0.4);
}

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

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

.btn-large {
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: 1.1rem;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    background: linear-gradient(135deg, var(--light-nude) 0%, #F9F5F0 100%);
    padding: var(--spacing-2xl) 0;
    min-height: 600px;
    display: flex;
    align-items: center;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--dark-nude);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.placeholder-image {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--secondary-nude) 0%, var(--accent-rose) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    box-shadow: 0 10px 40px rgba(212, 165, 116, 0.2);
}

/* ============================================
   FEATURES SECTION
   ============================================ */

.features {
    padding: var(--spacing-2xl) 0;
    background: white;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    color: var(--text-dark);
    position: relative;
    padding-bottom: var(--spacing-lg);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary-nude), transparent);
}

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

.feature-card {
    background: var(--light-nude);
    padding: var(--spacing-lg);
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(212, 165, 116, 0.1);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(212, 165, 116, 0.15);
    border-color: var(--primary-nude);
}

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

.feature-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-nude);
}

.feature-card p {
    color: var(--dark-nude);
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta {
    background: linear-gradient(135deg, var(--primary-nude) 0%, var(--tertiary-nude) 100%);
    padding: var(--spacing-2xl) 0;
    text-align: center;
    color: white;
}

.cta h2 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.cta p {
    color: rgba(255, 255, 255, 0.95);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   HOW IT WORKS SECTION
   ============================================ */

.how-it-works {
    padding: var(--spacing-2xl) 0;
    background: white;
}

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

.step {
    text-align: center;
    padding: var(--spacing-lg);
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-nude) 0%, var(--tertiary-nude) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto var(--spacing-md);
    box-shadow: 0 4px 15px rgba(212, 165, 116, 0.3);
}

.step h3 {
    color: var(--primary-nude);
    margin-bottom: var(--spacing-sm);
}

.step p {
    color: var(--dark-nude);
    margin-bottom: 0;
}

/* ============================================
   STATS SECTION
   ============================================ */

.stats {
    background: linear-gradient(135deg, var(--light-nude) 0%, #F9F5F0 100%);
    padding: var(--spacing-2xl) 0;
}

.stats .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-lg);
}

.stat-number {
    font-size: 2.5rem;
    color: var(--primary-nude);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.stat-item p {
    color: var(--dark-nude);
    margin-bottom: 0;
    font-weight: 500;
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about-section {
    padding: var(--spacing-2xl) 0;
}

.page-title {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    color: var(--text-dark);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.about-text h2 {
    color: var(--primary-nude);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.about-text h2:first-child {
    margin-top: 0;
}

.tech-list {
    list-style: none;
    padding-left: var(--spacing-lg);
}

.tech-list li {
    padding: var(--spacing-sm) 0;
    color: var(--dark-nude);
    position: relative;
    padding-left: var(--spacing-lg);
}

.tech-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-nude);
    font-weight: bold;
}

.placeholder-large {
    width: 100%;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--secondary-nude) 0%, var(--accent-rose) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6rem;
    box-shadow: 0 10px 40px rgba(212, 165, 116, 0.2);
}

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

.footer {
    background: var(--text-dark);
    color: var(--light-nude);
    padding: var(--spacing-lg) 0;
    text-align: center;
    margin-top: var(--spacing-2xl);
}

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

.footer-tagline {
    color: var(--primary-nude);
    font-style: italic;
    font-size: 0.95rem;
}

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

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    
    .navbar .container {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .nav-menu {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .hero-content h1 {
        font-size: 2.25rem;
    }
    
    .placeholder-image {
        width: 250px;
        height: 250px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .btn-large {
        width: 100%;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero {
        min-height: 400px;
        padding: var(--spacing-lg) 0;
    }
    
    .hero-content h1 {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .placeholder-image {
        width: 200px;
        height: 200px;
        font-size: 3rem;
    }
    
    .placeholder-large {
        font-size: 4rem;
    }
    
    .stats .container {
        grid-template-columns: 1fr 1fr;
    }
}