/* ============================================
   VERSA PC - Style principal
   Design premium, minimaliste
   ============================================ */

:root {
    /* Couleurs */
    --color-bg: #0D1520;
    --color-bg-alt: #111D2E;
    --color-surface: #1C1814;
    --color-border: rgba(113, 145, 215, 0.12);
    --color-border-strong: rgba(113, 145, 215, 0.25);
    --color-text: #F8FAFC;
    --color-text-muted: #94A3B8;
    --color-text-dim: #64748B;
    --color-accent: #7191D7;
    --color-accent-hover: #8BA4E0;

    /* Typographie */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Espacements */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    --space-3xl: 9rem;

    /* Container */
    --container-max: 1280px;
    --container-padding: 1.5rem;

    /* Transitions */
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --transition-fast: 0.2s var(--ease);
    --transition: 0.4s var(--ease);
    --transition-slow: 0.8s var(--ease);

    /* Rayons */
    --radius-sm: 4px;
    --radius: 8px;
    --radius-lg: 16px;
}
/* ===== BASE ===== */
body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    font-size: 16px;
    font-weight: 400;
    letter-spacing: -0.01em;
    overflow-x: hidden;
}

::selection {
    background-color: var(--color-accent);
    color: var(--color-bg);
}

/* ===== TYPOGRAPHIE ===== */
.eyebrow {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

h1, .h1 {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.05;
}

h2, .h2 {
    font-size: clamp(1.75rem, 3.5vw, 3rem);
    font-weight: 600;
    letter-spacing: -0.025em;
    line-height: 1.1;
}

h3, .h3 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
    font-weight: 600;
    letter-spacing: -0.015em;
}

h4 {
    font-size: 1.125rem;
    font-weight: 600;
}

.lead {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    color: var(--color-text-muted);
    line-height: 1.6;
    max-width: 60ch;
}

/* ===== LAYOUT ===== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--space-3xl) 0;
}

.section-sm {
    padding: var(--space-2xl) 0;
}

.section-header {
    margin-bottom: var(--space-xl);
    max-width: 800px;
}

/* ===== HEADER / NAVIGATION ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-md) 0;
    background-color: rgba(10, 10, 11, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition), padding var(--transition);
}

.header.scrolled {
    border-bottom-color: var(--color-border);
    padding: var(--space-sm) 0;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
}

.logo {
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-mark {
    width: 28px;
    height: 28px;
    background-color: var(--color-text);
    color: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.875rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-link {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

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

.nav-link:hover,
.nav-link.active {
    color: var(--color-text);
}
.nav-cta {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}


.menu-toggle {
    display: none;
    width: 32px;
    height: 32px;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    align-items: center;
}

.menu-toggle span {
    display: block;
    width: 20px;
    height: 1.5px;
    background-color: var(--color-text);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
}

/* ===== BOUTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: 1px solid transparent;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background-color: var(--color-accent);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text);
    border-color: var(--color-border-strong);
}

.btn-secondary:hover {
    border-color: var(--color-text);
    background-color: rgba(255, 255, 255, 0.04);
}

.btn-ghost {
    background-color: transparent;
    color: var(--color-text-muted);
    padding: 0.5rem 0;
}

.btn-ghost:hover {
    color: var(--color-text);
}

.btn-arrow::after {
    content: '→';
    transition: transform var(--transition-fast);
}

.btn-arrow:hover::after {
    transform: translateX(4px);
}

/* ===== HERO ===== */
.hero {
    min-height: 100vh;
    padding: var(--space-3xl) 0 var(--space-2xl);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at top, rgba(212, 165, 116, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero h1 {
    margin-bottom: var(--space-md);
}

.hero .lead {
    margin-bottom: var(--space-lg);
    font-size: clamp(1.125rem, 1.75vw, 1.375rem);
}

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

/* ===== CARDS ===== */
.card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: border-color var(--transition), transform var(--transition);
}

.card:hover {
    border-color: var(--color-border-strong);
    transform: translateY(-2px);
}

.card-icon {
    width: 40px;
    height: 40px;
    margin-bottom: var(--space-md);
    color: var(--color-accent);
}

.card h3 {
    margin-bottom: var(--space-sm);
}

.card p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

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

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

/* ===== PRODUIT / PC CARD ===== */
.product-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--transition), transform var(--transition);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    border-color: var(--color-border-strong);
    transform: translateY(-4px);
}

.product-image {
    aspect-ratio: 4 / 3;
    background-color: var(--color-bg-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-dim);
    font-size: 0.875rem;
    border-bottom: 1px solid var(--color-border);
}

.product-body {
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.product-tier {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.product-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.product-specs {
    list-style: none;
    margin-bottom: var(--space-md);
    flex: 1;
}

.product-specs li {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    padding: 0.375rem 0;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    gap: var(--space-sm);
}

.product-specs li:last-child {
    border-bottom: none;
}

.product-specs strong {
    color: var(--color-text);
    font-weight: 500;
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--color-border);
}

.product-price {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    background: none;
    -webkit-text-fill-color: var(--color-text);
}

.product-price-undefined {
    color: var(--color-text-dim);
    font-size: 0.875rem;
    font-weight: 400;
}

/* ===== FORMULAIRES ===== */
.form-group {
    margin-bottom: var(--space-md);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.875rem 1rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    font-size: 0.9375rem;
    transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    border-color: var(--color-accent);
}

.form-textarea {
    min-height: 140px;
    resize: vertical;
    font-family: inherit;
}

.form-helper {
    font-size: 0.8125rem;
    color: var(--color-text-dim);
    margin-top: 0.5rem;
}

/* ===== FAQ ===== */
.faq-item {
    border-bottom: 1px solid var(--color-border);
}

.faq-question {
    width: 100%;
    text-align: left;
    padding: var(--space-md) 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
    font-size: 1.0625rem;
    font-weight: 500;
    color: var(--color-text);
    transition: color var(--transition-fast);
}

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

.faq-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    position: relative;
    transition: transform var(--transition);
}

.faq-icon::before,
.faq-icon::after {
    content: '';
    position: absolute;
    background-color: currentColor;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.faq-icon::before {
    width: 12px;
    height: 1.5px;
}

.faq-icon::after {
    width: 1.5px;
    height: 12px;
    transition: transform var(--transition);
}

.faq-item.active .faq-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
    opacity: 0;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
}

.faq-answer-inner {
    padding-bottom: var(--space-md);
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    line-height: 1.7;
    max-width: 70ch;
}

/* ===== PROCESSUS / ÉTAPES ===== */
.step {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: var(--space-lg);
    padding: var(--space-lg) 0;
    border-bottom: 1px solid var(--color-border);
}

.step-number {
    font-size: 2rem;
    font-weight: 300;
    color: var(--color-accent);
    font-variant-numeric: tabular-nums;
}

.step-content h3 {
    margin-bottom: var(--space-sm);
}

.step-content p {
    color: var(--color-text-muted);
    max-width: 60ch;
}

/* ===== FOOTER ===== */
.footer {
    background-color: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    padding: var(--space-2xl) 0 var(--space-md);
    margin-top: var(--space-3xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-brand p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    max-width: 40ch;
    margin-top: var(--space-sm);
}

.footer-col h4 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col ul a {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.footer-col ul a:hover {
    color: var(--color-text);
}

.footer-bottom {
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
    font-size: 0.875rem;
    color: var(--color-text-dim);
}

/* ===== UTILITAIRES ===== */
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.text-dim { color: var(--color-text-dim); }
.text-accent { color: var(--color-accent); }

.undefined-value {
    color: var(--color-text-dim);
    font-style: italic;
    font-size: 0.9375rem;
}

.divider {
    height: 1px;
    background-color: var(--color-border);
    border: none;
    margin: var(--space-lg) 0;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    background-color: rgba(212, 165, 116, 0.1);
    color: var(--color-accent);
    border: 1px solid rgba(212, 165, 116, 0.2);
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* ===== ANIMATIONS UTILITAIRES ===== */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

/* ===== PAGE HEADER (sous-pages) ===== */
.page-header {
    padding: calc(var(--space-3xl) + 60px) 0 var(--space-2xl);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
    margin-bottom: var(--space-sm);
}
.product-image-wrap {
    aspect-ratio: 4 / 3;
    background-color: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
    overflow: hidden;
}

.product-image-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.header .container {
    max-width: 2000px;
}
.btn-primary {
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255,255,255,0.15);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease;
}

.btn-primary:hover::before {
    width: 200px;
    height: 200px;
}
/* Logo officiel et navigation compacte */
.nav .logo img { height: 32px !important; width: auto; display: block; }
.footer .logo img { height: 48px !important; width: auto; display: block; }