/* ===========================
   RIVOLI LUXE DESIGN SYSTEM
   Modern Premium VTC Website
   =========================== */

/* ===========================
   CSS VARIABLES
   =========================== */
:root {
    /* Couleurs principales */
    --blanc-pur: #FFFFFF;
    --blanc-casse: #FAFAFA;
    --gris-ultra-clair: #F5F5F5;
    --gris-clair: #E0E0E0;
    --gris-moyen: #9E9E9E;
    --gris-fonce: #424242;
    --anthracite: #1A1A1A;
    --noir-profond: #0A0A0A;
    --texte-principal: #2D2D2D;

    /* Couleurs accent */
    --or-premium: #C9A94E;
    --or-hover: #D4B560;
    --or-light: #E8D9A8;
    --bleu-nuit: #2C3E50;
    --bleu-nuit-light: #34495E;

    /* Gradients */
    --gradient-or: linear-gradient(135deg, #C9A94E 0%, #D4B560 100%);
    --gradient-hero: linear-gradient(135deg, rgba(44, 62, 80, 0.4) 0%, rgba(26, 26, 26, 0.5) 100%);
    --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);

    /* Typographie */
    --font-titre: 'Playfair Display', serif;
    --font-corps: 'Inter', sans-serif;
    --font-ui: 'Montserrat', sans-serif;

    /* Espacements */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-xxl: 8rem;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    /* Ombres */
    --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.2);
    --shadow-gold: 0 4px 20px rgba(201, 169, 78, 0.25);
    --shadow-gold-lg: 0 8px 32px rgba(201, 169, 78, 0.35);

    /* Border radius */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ===========================
   RESET & BASE
   =========================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-corps);
    background-color: var(--blanc-casse);
    color: var(--texte-principal);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Support RTL pour l'arabe */
body[dir="rtl"] {
    direction: rtl;
}

/* ===========================
   TYPOGRAPHIE
   =========================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-titre);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--texte-principal);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 600;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

p {
    margin-bottom: var(--spacing-sm);
    font-size: clamp(1rem, 2vw, 1.125rem);
    line-height: 1.7;
}

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

a:hover {
    color: var(--or-hover);
}

strong {
    font-weight: 600;
}

/* ===========================
   LAYOUT & CONTAINERS
   =========================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-narrow {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-wide {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

section.section-lg {
    padding: var(--spacing-xxl) 0;
}

section.section-sm {
    padding: var(--spacing-lg) 0;
}

/* Sections alternées */
.section-light {
    background-color: var(--blanc-casse);
}

.section-white {
    background-color: var(--blanc-pur);
}

.section-dark {
    background-color: var(--anthracite);
    color: var(--blanc-pur);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
    color: var(--blanc-pur);
}

/* ===========================
   GRID SYSTEM
   =========================== */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.flex {
    display: flex;
}

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

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flex-wrap {
    flex-wrap: wrap;
}

.gap-xs {
    gap: var(--spacing-xs);
}

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

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

/* ===========================
   BOUTONS
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2.5rem;
    font-family: var(--font-ui);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-or);
    color: var(--noir-profond);
    box-shadow: var(--shadow-gold);
}

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

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

.btn-secondary:hover {
    background: var(--or-premium);
    color: var(--blanc-pur);
}

.btn-dark {
    background: var(--anthracite);
    color: var(--blanc-pur);
    border: 2px solid var(--anthracite);
}

.btn-dark:hover {
    background: var(--noir-profond);
    border-color: var(--noir-profond);
    color: var(--blanc-pur);
}

.btn-outline {
    background: transparent;
    color: var(--texte-principal);
    border: 2px solid var(--gris-clair);
}

.btn-outline:hover {
    border-color: var(--or-premium);
    color: var(--or-premium);
}

.btn-lg {
    padding: 1.25rem 3rem;
    font-size: 1.125rem;
}

.btn-sm {
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
}

.btn-icon {
    padding: 0.875rem;
    aspect-ratio: 1;
}

/* ===========================
   CARTES
   =========================== */
.card {
    background: var(--blanc-pur);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--gris-clair);
    box-shadow: var(--shadow-sm);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--or-premium);
}

.card-glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.card-dark {
    background: var(--anthracite);
    border-color: rgba(201, 169, 78, 0.2);
    color: var(--blanc-pur);
}

.card-dark:hover {
    border-color: var(--or-premium);
}

.card-image {
    width: 100%;
    height: 240px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
}

.card-header {
    margin-bottom: var(--spacing-sm);
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.card-body {
    color: var(--gris-fonce);
    line-height: 1.6;
}

.card-dark .card-body {
    color: var(--gris-clair);
}

.card-footer {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--gris-clair);
}

/* ===========================
   BADGES & TAGS
   =========================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.875rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    background: var(--gris-ultra-clair);
    color: var(--texte-principal);
}

.badge-gold {
    background: var(--or-light);
    color: var(--noir-profond);
}

.badge-premium {
    background: var(--gradient-or);
    color: var(--noir-profond);
}

/* ===========================
   UTILITAIRES
   =========================== */
.text-center {
    text-align: center;
}

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

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

.text-gold {
    color: var(--or-premium);
}

.text-white {
    color: var(--blanc-pur);
}

.text-dark {
    color: var(--texte-principal);
}

.text-muted {
    color: var(--gris-moyen);
}

.bg-white {
    background-color: var(--blanc-pur);
}

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

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

.bg-gold {
    background: var(--gradient-or);
}

/* Marges */
.mb-0 {
    margin-bottom: 0;
}

.mb-1 {
    margin-bottom: var(--spacing-xs);
}

.mb-2 {
    margin-bottom: var(--spacing-sm);
}

.mb-3 {
    margin-bottom: var(--spacing-md);
}

.mb-4 {
    margin-bottom: var(--spacing-lg);
}

.mb-5 {
    margin-bottom: var(--spacing-xl);
}

.mt-0 {
    margin-top: 0;
}

.mt-1 {
    margin-top: var(--spacing-xs);
}

.mt-2 {
    margin-top: var(--spacing-sm);
}

.mt-3 {
    margin-top: var(--spacing-md);
}

.mt-4 {
    margin-top: var(--spacing-lg);
}

.mt-5 {
    margin-top: var(--spacing-xl);
}

/* Paddings */
.p-0 {
    padding: 0;
}

.p-1 {
    padding: var(--spacing-xs);
}

.p-2 {
    padding: var(--spacing-sm);
}

.p-3 {
    padding: var(--spacing-md);
}

.p-4 {
    padding: var(--spacing-lg);
}

/* ===========================
   ANIMATIONS
   =========================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

.scale-in {
    animation: scaleIn 0.6s ease-out;
}

/* Intersection Observer classes */
.observe {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.observe.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===========================
   RESPONSIVE
   =========================== */
@media (max-width: 1024px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 5rem;
        --spacing-xxl: 6rem;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 2.5rem;
        --spacing-xl: 4rem;
        --spacing-xxl: 5rem;
    }

    .container,
    .container-narrow,
    .container-wide {
        padding: 0 var(--spacing-sm);
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .btn {
        width: 100%;
    }

    .btn-group .btn {
        width: auto;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
        --spacing-xxl: 4rem;
    }

    .btn {
        padding: 0.875rem 2rem;
        font-size: 0.9375rem;
    }

    .btn-lg {
        padding: 1rem 2.5rem;
        font-size: 1rem;
    }
}

/* ===========================
   ACCESSIBILITÉ
   =========================== */
.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;
}

/* Focus visible pour accessibilité */
*:focus-visible {
    outline: 2px solid var(--or-premium);
    outline-offset: 2px;
}

/* ===========================
   PRINT STYLES
   =========================== */
@media print {
    * {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }

    a,
    a:visited {
        text-decoration: underline;
    }

    a[href]:after {
        content: " (" attr(href) ")";
    }

    img {
        max-width: 100% !important;
    }

    @page {
        margin: 2cm;
    }
}