/* ===========================
   VARIABLES & RESET
   =========================== */

:root {
    /* Colors - From CAST.FASHION Logo */
    --color-primary: #000000;        /* Noir du logo */
    --color-secondary: #FF0000;      /* Rouge vif du logo */
    --color-accent: #CC0000;         /* Rouge plus foncé pour variations */
    --color-bg: #FAF7F2;             /* Beige crème du logo */
    --color-white: #ffffff;
    --color-text: #000000;
    --color-text-light: #6b6b6b;
    --color-border: #e5e5e0;

    /* Typography - Editorial Style */
    --font-heading: 'Cormorant Garamond', serif;
    --font-body: 'Montserrat', sans-serif;

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

    /* Layout */
    --container-width: 1400px;
    --section-padding: 8rem 2rem;

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 300;
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: baseline;
    gap: 2rem;
}

.section-number {
    font-family: var(--font-heading);
    font-size: clamp(1rem, 2vw, 1.5rem);
    color: var(--color-secondary);
    font-weight: 300;
    letter-spacing: 0.1em;
}

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

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    background-color: var(--color-secondary);
    transform: translateY(-2px);
}

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

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

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1rem;
}

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

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(250, 250, 248, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition);
}

.nav.scrolled {
    background-color: rgba(250, 250, 248, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: block;
    height: 60px;
}

.logo-img {
    height: 100%;
    width: auto;
    transition: var(--transition);
}

.nav-logo:hover .logo-img {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    gap: 3rem;
    align-items: center;
}

.nav-menu a {
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-secondary);
    transition: var(--transition);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: 0.75rem 1.5rem;
    background-color: var(--color-primary);
    color: var(--color-white) !important;
    border-radius: 0;
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    background-color: var(--color-secondary);
}

.nav-backoffice {
    padding: 0.75rem 1.5rem;
    background-color: var(--color-secondary);
    color: var(--color-white) !important;
    border-radius: 0;
    font-weight: 600;
}

.nav-backoffice::after {
    display: none;
}

.nav-backoffice:hover {
    background-color: var(--color-accent);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--color-primary);
    transition: var(--transition);
}

/* ===========================
   LANGUAGE SWITCHER
   =========================== */

.language-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.lang-btn {
    padding: 0.5rem 0.75rem;
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.875rem;
    font-weight: 500;
    font-family: var(--font-body);
    border-radius: 4px;
}

.lang-btn:hover {
    background-color: var(--color-bg);
    border-color: var(--color-primary);
}

.lang-btn.active {
    background-color: var(--color-primary);
    color: var(--color-bg);
    border-color: var(--color-primary);
}

.lang-btn:focus {
    outline: 2px solid var(--color-secondary);
    outline-offset: 2px;
}

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

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 6rem 2rem 3rem;
    background: linear-gradient(135deg, var(--color-bg) 0%, #f5f5f0 100%);
    overflow: hidden;
}

.hero-content {
    max-width: var(--container-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-family: var(--font-heading);
    font-weight: 300;
    line-height: 1.1;
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
}

.hero-title-top {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-light);
}

.hero-title-main {
    font-size: clamp(3rem, 7vw, 6rem);
    font-weight: 400;
    color: var(--color-primary);
    margin: 0.5rem 0;
    font-style: italic;
}

.hero-title-bottom {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    color: var(--color-secondary);
    letter-spacing: 0.05em;
}

.hero-subtitle {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 3rem;
    max-width: 90%;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
    width: 100%;
    height: 700px;
}

/* ===========================
   MODELS SLIDER
   =========================== */

.models-slider {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    background-color: #f0f0f0;
}

.slider-container {
    width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.6s ease-in-out;
    pointer-events: none;
}

.slider-slide.active {
    opacity: 1;
    pointer-events: auto;
}

.slider-slide img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center top;
}

.slider-model-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 100%);
    color: white;
    padding: 2rem 1.5rem 1.5rem;
    transform: translateY(100%);
    transition: transform 0.3s ease-in-out;
}

.slider-slide:hover .slider-model-info {
    transform: translateY(0);
}

.slider-model-name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 500;
    margin: 0;
}

/* Navigation arrows */
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background-color: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 10;
    color: var(--color-primary);
}

.slider-arrow:hover {
    background-color: var(--color-secondary);
    color: white;
    transform: translateY(-50%) scale(1.1);
}

.slider-arrow svg {
    width: 24px;
    height: 24px;
}

.slider-arrow-prev {
    left: 1rem;
}

.slider-arrow-next {
    right: 1rem;
}

/* Indicateurs */
.slider-indicators {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
    z-index: 10;
}

.slider-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    padding: 0;
}

.slider-indicator.active {
    background-color: var(--color-secondary);
    transform: scale(1.3);
}

.slider-indicator:hover {
    background-color: rgba(255, 255, 255, 0.8);
}

/* Loading state */
.slider-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    color: var(--color-text-light);
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 0, 0, 0.1);
    border-top-color: var(--color-secondary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.hero-scroll {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-light);
}

.hero-scroll-line {
    width: 1px;
    height: 50px;
    background-color: var(--color-border);
    animation: scrollLine 2s infinite;
}

@keyframes scrollLine {
    0%, 100% { opacity: 0; transform: translateY(0); }
    50% { opacity: 1; transform: translateY(10px); }
}

/* ===========================
   INTRO SECTION
   =========================== */

.intro {
    padding: var(--section-padding);
    background-color: var(--color-white);
}

.intro-content {
    max-width: 900px;
    margin: 0 auto;
}

.intro-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 300;
    line-height: 1.3;
    margin-bottom: 2rem;
    color: var(--color-primary);
}

.intro-text {
    font-size: clamp(1rem, 1.2vw, 1.125rem);
    line-height: 1.9;
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
}

.intro-highlight {
    color: var(--color-text);
    font-size: clamp(1.125rem, 1.3vw, 1.25rem);
    margin-top: 2rem;
    padding: 2rem;
    background-color: var(--color-bg);
    border-left: 3px solid var(--color-secondary);
}

/* ===========================
   BENEFITS SECTION
   =========================== */

.benefits {
    padding: var(--section-padding);
    background-color: var(--color-bg);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.benefit-card {
    padding: 3rem 2rem;
    background-color: var(--color-white);
    transition: var(--transition);
    position: relative;
    border: 1px solid var(--color-border);
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-secondary);
    transition: var(--transition);
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.benefit-card:hover::before {
    width: 100%;
}

.benefit-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 2rem;
    color: var(--color-secondary);
}

.benefit-icon svg {
    width: 100%;
    height: 100%;
}

.benefit-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 500;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.benefit-description {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text-light);
}

/* ===========================
   WORKFLOW SECTION
   =========================== */

.workflow {
    padding: var(--section-padding);
    background-color: var(--color-white);
}

.workflow-steps {
    display: grid;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.workflow-step {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 2rem;
    align-items: start;
    padding: 2rem 0;
    border-bottom: 1px solid var(--color-border);
}

.workflow-step:last-child {
    border-bottom: none;
}

.workflow-step-number {
    width: 80px;
    height: 80px;
    border: 2px solid var(--color-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-secondary);
    transition: var(--transition);
}

.workflow-step:hover .workflow-step-number {
    background-color: var(--color-secondary);
    color: var(--color-white);
    transform: scale(1.1);
}

.workflow-step-content h3 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    color: var(--color-primary);
}

.workflow-step-content p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text-light);
}

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

.cta-section {
    padding: var(--spacing-xl) 2rem;
    background-color: var(--color-primary);
    color: var(--color-white);
    text-align: center;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 300;
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

.cta-subtitle {
    font-size: clamp(1rem, 1.2vw, 1.25rem);
    line-height: 1.8;
    margin-bottom: 3rem;
    color: rgba(255, 255, 255, 0.9);
}

.cta-section .btn-primary {
    background-color: var(--color-white);
    color: var(--color-primary);
}

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

/* ===========================
   CONTACT SECTION
   =========================== */

.contact {
    padding: var(--section-padding);
    background-color: var(--color-bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: start;
}

.contact-info h3 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    color: var(--color-primary);
}

.contact-info p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text-light);
    margin-bottom: 2rem;
}

.contact-features {
    list-style: none;
    padding: 0;
}

.contact-features li {
    padding: 0.75rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--color-text);
}

.contact-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-secondary);
    font-weight: bold;
}

/* ===========================
   FORM STYLES
   =========================== */

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    background-color: var(--color-white);
    padding: 3rem;
    border: 1px solid var(--color-border);
}

.form-group {
    position: relative;
    display: flex;
    flex-direction: column;
}

.form-group-full {
    grid-column: 1 / -1;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--color-border);
    background-color: var(--color-bg);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text);
    transition: var(--transition);
    order: 2;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-secondary);
}

.form-group label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: 0.5rem;
    transition: var(--transition);
    order: 1;
}

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group select:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:not(:placeholder-shown) + label {
    color: var(--color-secondary);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b6b6b' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 3rem;
}

.contact-form .btn {
    grid-column: 1 / -1;
    justify-self: start;
    margin-top: 1rem;
}

.hidden {
    display: none;
}

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

.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 4rem 2rem 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-logo {
    height: 150px;
    width: auto;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--color-secondary);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

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

@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background-color: var(--color-white);
        flex-direction: column;
        padding: 6rem 2rem;
        gap: 2rem;
        align-items: flex-start;
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
        transition: var(--transition);
    }

    .nav-menu.active {
        right: 0;
    }

    .language-switcher {
        position: absolute;
        top: 1.5rem;
        right: 4rem;
        gap: 0.25rem;
    }

    .lang-btn {
        padding: 0.4rem 0.6rem;
        font-size: 0.8rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-content {
        grid-template-columns: 1fr;
    }

    .hero-image {
        order: -1;
        max-width: 400px;
        margin: 0 auto;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    :root {
        --section-padding: 4rem 1.5rem;
    }

    .hero {
        padding: 6rem 1.5rem 3rem;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .workflow-step {
        grid-template-columns: 60px 1fr;
        gap: 1.5rem;
    }

    .workflow-step-number {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    .contact-form {
        grid-template-columns: 1fr;
        padding: 2rem;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .hero-cta .btn {
        width: 100%;
        text-align: center;
    }
}