/* ========================================
   SUZOSKY - Main Stylesheet
   Ultra-Luxury Design System
   ======================================== */

/* ========================================
   1. CSS VARIABLES & DESIGN TOKENS
   ======================================== */

:root {
    /* Colors - Palette Luxueuse */
    --color-primary: #1a1a1a;
    --color-secondary: #1e2e42;
    --color-accent: #d4af37;
    --color-accent-light: #f0e5c9;
    
    --color-text-primary: #1a1a1a;
    --color-text-secondary: #6b6b6b;
    --color-text-light: #999999;
    --color-text-white: #ffffff;
    
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #fafafa;
    --color-bg-dark: #1a1a1a;
    --color-bg-overlay: rgba(26, 26, 26, 0.7);
    
    --color-border: #e5e5e5;
    --color-border-light: #f5f5f5;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    --font-size-xs: 0.75rem;      /* 12px */
    --font-size-sm: 0.875rem;     /* 14px */
    --font-size-base: 1rem;       /* 16px */
    --font-size-lg: 1.125rem;     /* 18px */
    --font-size-xl: 1.25rem;      /* 20px */
    --font-size-2xl: 1.5rem;      /* 24px */
    --font-size-3xl: 2rem;        /* 32px */
    --font-size-4xl: 2.5rem;      /* 40px */
    --font-size-5xl: 3rem;        /* 48px */
    --font-size-6xl: 4rem;        /* 64px */
    
    /* Spacing */
    --spacing-xs: 0.5rem;         /* 8px */
    --spacing-sm: 1rem;           /* 16px */
    --spacing-md: 1.5rem;         /* 24px */
    --spacing-lg: 2rem;           /* 32px */
    --spacing-xl: 3rem;           /* 48px */
    --spacing-2xl: 4rem;          /* 64px */
    --spacing-3xl: 6rem;          /* 96px */
    --spacing-4xl: 8rem;          /* 128px */
    
    /* Layout */
    --container-max-width: 1400px;
    --container-padding: 2rem;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-base: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ========================================
   2. RESET & BASE STYLES
   ======================================== */

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

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

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
}

input, button, textarea, select {
    font: inherit;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    background: none;
    border: none;
    cursor: pointer;
}

/* ========================================
   3. LOADER
   ======================================== */

.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader__content {
    text-align: center;
}

.loader__logo {
    font-family: var(--font-display);
    font-size: var(--font-size-3xl);
    font-weight: 600;
    letter-spacing: 0.3em;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.loader__line {
    width: 200px;
    height: 2px;
    background: var(--color-border);
    position: relative;
    overflow: hidden;
}

.loader__line::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--color-accent);
    animation: loaderSlide 1.5s ease-in-out infinite;
}

@keyframes loaderSlide {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* ========================================
   4. NAVIGATION
   ======================================== */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: transparent;
    z-index: var(--z-fixed);
    transition: background var(--transition-base), backdrop-filter var(--transition-base);
}

.nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.nav__container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: var(--spacing-md) var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo a {
    font-family: var(--font-display);
    font-size: var(--font-size-xl);
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--color-primary);
    transition: color var(--transition-fast);
}

.nav__logo a:hover {
    color: var(--color-accent);
}

.nav__menu {
    display: flex;
    gap: var(--spacing-xl);
}

.nav__link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-primary);
    position: relative;
    transition: color var(--transition-fast);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.nav__link:hover {
    color: var(--color-accent);
}

.nav__link:hover::after {
    width: 100%;
}

.nav__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav__lang {
    font-size: var(--font-size-sm);
    font-weight: 500;
    letter-spacing: 0.05em;
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.nav__lang:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* ========================================
   5. HERO SECTION
   ======================================== */

.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero__background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #fafafa 0%, #f5f5f5 100%);
    background-image: url('../images/hero-bg.svg');
    background-size: cover;
    background-position: center;
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 50%, rgba(212, 175, 55, 0.05) 0%, transparent 50%);
}

.hero__content {
    position: relative;
    text-align: center;
    z-index: 1;
    animation: heroFadeIn 1s ease-out;
}

@keyframes heroFadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero__text {
    margin-bottom: var(--spacing-3xl);
}

.hero__title {
    font-family: var(--font-display);
    font-size: clamp(var(--font-size-4xl), 8vw, var(--font-size-6xl));
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.hero__title--accent {
    display: block;
    color: var(--color-accent);
    font-style: italic;
}

.hero__subtitle {
    font-size: var(--font-size-lg);
    font-weight: 400;
    color: var(--color-text-secondary);
    letter-spacing: 0.02em;
}

.hero__scroll {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    transition: transform var(--transition-base);
}

.hero__scroll:hover {
    transform: translateY(5px);
}

.hero__scroll-text {
    font-size: var(--font-size-xs);
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-light);
}

.hero__scroll-line {
    width: 1px;
    height: 40px;
    background: var(--color-border);
    position: relative;
    overflow: hidden;
}

.hero__scroll-line::after {
    content: '';
    position: absolute;
    top: -20px;
    left: 0;
    width: 100%;
    height: 20px;
    background: var(--color-accent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0% { top: -20px; }
    50% { top: 40px; }
    100% { top: 40px; }
}

/* ========================================
   6. SERVICES SECTION
   ======================================== */

.services {
    padding: var(--spacing-4xl) var(--container-padding);
    background: var(--color-bg-primary);
}

.services__container {
    max-width: var(--container-max-width);
    margin: 0 auto;
}

.services__header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.services__title {
    font-family: var(--font-display);
    font-size: var(--font-size-4xl);
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.services__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

/* ========================================
   7. SERVICE CARD
   ======================================== */

.service-card {
    position: relative;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border-light);
    overflow: hidden;
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.service-card__link {
    display: block;
}

.service-card__image {
    position: relative;
    height: 280px;
    background: linear-gradient(135deg, #f5f5f5 0%, #fafafa 100%);
    overflow: hidden;
}

.service-card__bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.service-card:hover .service-card__bg-image {
    transform: scale(1.05);
}

.service-card[data-service="boutique"] .service-card__image {
    background: linear-gradient(135deg, #f8f9fa 0%, #fff5e6 100%);
}

.service-card[data-service="conciergerie"] .service-card__image {
    background: linear-gradient(135deg, #1e2e42 0%, #2a3f5f 100%);
}

.service-card[data-service="coursier"] .service-card__image {
    background: linear-gradient(135deg, #e8f4f8 0%, #d0e8f0 100%);
}

.service-card__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.02);
    transition: background var(--transition-base);
}

.service-card:hover .service-card__overlay {
    background: rgba(0, 0, 0, 0.05);
}

.service-card__badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-primary);
    border: 1px solid var(--color-border);
}

.service-card__content {
    padding: var(--spacing-xl);
}

.service-card__icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
}

.service-card__title {
    font-family: var(--font-display);
    font-size: var(--font-size-2xl);
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.service-card__description {
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.service-card__features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.feature-tag {
    padding: 0.4rem 0.8rem;
    background: var(--color-bg-secondary);
    font-size: var(--font-size-xs);
    font-weight: 500;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border-light);
    transition: all var(--transition-fast);
}

.service-card:hover .feature-tag {
    background: var(--color-accent-light);
    border-color: var(--color-accent);
    color: var(--color-primary);
}

.service-card__cta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-primary);
    transition: gap var(--transition-base);
}

.service-card:hover .service-card__cta {
    gap: var(--spacing-md);
}

.cta-arrow {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
    transition: transform var(--transition-base);
}

.service-card:hover .cta-arrow {
    transform: translateX(4px);
}

/* ========================================
   8. ABOUT SECTION
   ======================================== */

.about {
    padding: var(--spacing-4xl) var(--container-padding);
    background: var(--color-bg-secondary);
}

.about__container {
    max-width: var(--container-max-width);
    margin: 0 auto;
}

.about__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about__title {
    font-family: var(--font-display);
    font-size: var(--font-size-4xl);
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

.about__description {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.about__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.stat {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border-light);
    transition: all var(--transition-base);
}

.stat:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat__number {
    font-family: var(--font-display);
    font-size: var(--font-size-4xl);
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.stat__label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
}

/* ========================================
   9. CONTACT SECTION
   ======================================== */

.contact {
    padding: var(--spacing-4xl) var(--container-padding);
    background: var(--color-primary);
    color: var(--color-text-white);
}

.contact__container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact__title {
    font-family: var(--font-display);
    font-size: var(--font-size-4xl);
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-md);
}

.contact__subtitle {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-xl);
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

.contact__link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-xl);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-size: var(--font-size-base);
    color: var(--color-text-white);
    transition: all var(--transition-base);
}

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

.contact__link svg {
    width: 24px;
    height: 24px;
    color: var(--color-accent);
}

/* ========================================
   10. FOOTER
   ======================================== */

.footer {
    background: var(--color-bg-dark);
    color: var(--color-text-white);
    padding: var(--spacing-3xl) var(--container-padding) var(--spacing-xl);
}

.footer__container {
    max-width: var(--container-max-width);
    margin: 0 auto;
}

.footer__content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
}

.footer__logo {
    font-family: var(--font-display);
    font-size: var(--font-size-2xl);
    font-weight: 600;
    letter-spacing: 0.2em;
    margin-bottom: var(--spacing-sm);
}

.footer__tagline {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
    font-style: italic;
}

.footer__links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.footer__title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
}

.footer__link {
    display: block;
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-xs);
    transition: color var(--transition-fast);
}

.footer__link:hover {
    color: var(--color-accent);
}

.footer__bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer__copyright {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.5);
}

/* ========================================
   11. RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 1024px) {
    :root {
        --container-padding: 1.5rem;
    }
    
    .nav__menu {
        gap: var(--spacing-lg);
    }
    
    .services__grid {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }
    
    .about__content {
        grid-template-columns: 1fr;
    }
    
    .footer__content {
        grid-template-columns: 1fr;
    }
    
    .footer__links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav__menu {
        display: none;
    }
    
    .hero {
        min-height: 600px;
    }
    
    .hero__title {
        font-size: var(--font-size-3xl);
    }
    
    .services {
        padding: var(--spacing-3xl) var(--container-padding);
    }
    
    .services__grid {
        grid-template-columns: 1fr;
    }
    
    .about__stats {
        grid-template-columns: 1fr;
    }
    
    .footer__links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 1rem;
    }
    
    .nav__logo a {
        font-size: var(--font-size-lg);
    }
    
    .hero__title {
        font-size: var(--font-size-2xl);
    }
    
    .services__title,
    .about__title,
    .contact__title {
        font-size: var(--font-size-3xl);
    }
    
    .service-card__content {
        padding: var(--spacing-lg);
    }
}

/* ========================================
   12. UTILITY CLASSES
   ======================================== */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

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

.hidden {
    display: none;
}

/* ========================================
   13. PERFORMANCE OPTIMIZATIONS
   ======================================== */

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