/**
 * Othantyr — Styles principaux
 * Design tokens + layout + typographie
 *
 * @package Othantyr
 * @since 1.0.0
 */

/* ========================================
   1. DESIGN TOKENS (Custom Properties)
   ======================================== */

:root {
    /* Primary */
    --color-primary: #B91C1C;
    --color-primary-dark: #991B1B;
    --color-primary-light: #DC2626;

    /* Background */
    --color-bg: #FAFAF9;
    --color-surface: #F5F5F4;

    /* Text */
    --color-text: #1C1917;
    --color-text-secondary: #57534E;
    --color-text-muted: #8A8580;

    /* Semantic */
    --color-success: #15803D;
    --color-warning: #B45309;
    --color-error: #DC2626;
    --color-info: #2563EB;

    /* Accent */
    --color-gold: #B8860B;

    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Spacing (base 4px) */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-6: 24px;
    --space-8: 32px;
    --space-12: 48px;
    --space-16: 64px;
    --space-24: 96px;

    /* Border radius (angulaire) */
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 4px;
    --radius-xl: 6px;

    /* Borders */
    --border-default: 1px solid #E7E5E4;
    --border-hover: 1px solid #A8A29E;
    --border-accent: 1px solid #B91C1C;
    --border-accent-bold: 2px solid #B91C1C;

    /* Shadows (usage minimal) */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);

    /* Layout */
    --max-width: 1280px;
    --gutter: 24px;

    /* Animation */
    --ease-default: cubic-bezier(0.4, 0, 0.2, 1);
    --duration-fast: 150ms;
    --duration-normal: 200ms;
    --duration-slow: 300ms;

    /* Spacing étendu (Gemini: sections 128-160px) */
    --space-32: 128px;
    --space-40: 160px;
}

/* ========================================
   2. RESET / BASE
   ======================================== */

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--duration-normal) var(--ease-default);
}

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

a:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* ========================================
   3. TYPOGRAPHIE
   ======================================== */

@font-face {
    font-family: 'Inter';
    src: url('../fonts/inter-var.woff2') format('woff2');
    font-weight: 100 900;
    font-display: swap;
    font-style: normal;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--space-4);
    color: var(--color-text-secondary);
}

blockquote {
    border-left: var(--border-accent-bold);
    padding-left: var(--space-6);
    font-style: italic;
    color: var(--color-text-secondary);
}

code, pre {
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

pre {
    background-color: var(--color-surface);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    overflow-x: auto;
}

/* ========================================
   4. LAYOUT
   ======================================== */

.container {
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

.container--narrow {
    max-width: 720px;
}

.section {
    padding-top: var(--space-32);
    padding-bottom: var(--space-32);
}

.section__title {
    text-align: center;
    margin-bottom: var(--space-12);
}

/* ========================================
   5. HEADER
   ======================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: #fff;
    border-bottom: var(--border-default);
    height: 64px;
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.site-header__brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    text-decoration: none;
}

.site-header__nav {
    display: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-6);
    align-items: center;
}

/* Masquer les sous-menus par défaut (mega menus) */
.nav-menu .sub-menu,
.nav-menu .mega-menu {
    display: none;
    position: absolute;
}

/* Items de premier niveau avec mega menu : position relative */
.nav-menu > li {
    position: relative;
}

/* Masquer les enfants directs des items mega menu dans la nav */
.nav-menu > li > .mega-menu {
    position: absolute;
    top: 100%;
    left: -200px;
    right: -200px;
    z-index: 150;
}

/* Afficher le mega menu au hover */
.nav-menu > li:hover > .mega-menu,
.nav-menu > li:focus-within > .mega-menu {
    display: block;
}

.nav-menu > li > a {
    color: var(--color-text);
    font-size: 0.9375rem;
    font-weight: 500;
    padding: var(--space-2) 0;
    border-bottom: 2px solid transparent;
    transition: border-color var(--duration-normal) var(--ease-default);
    white-space: nowrap;
}

.nav-menu li a:hover {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.site-header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.lang-switch__item--active {
    color: var(--color-text);
    font-weight: 600;
}

/* Hamburger */
.site-header__hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    transition: transform var(--duration-normal) var(--ease-default);
}

/* ========================================
   6. MOBILE MENU
   ======================================== */

.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 200;
    pointer-events: none;
}

.mobile-menu[aria-hidden="false"] {
    pointer-events: auto;
}

.mobile-menu__overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.4);
    opacity: 0;
    transition: opacity var(--duration-slow) var(--ease-default);
}

.mobile-menu[aria-hidden="false"] .mobile-menu__overlay {
    opacity: 1;
}

.mobile-menu__panel {
    position: absolute;
    top: 0;
    right: 0;
    width: 85vw;
    max-width: 380px;
    height: 100%;
    background-color: #fff;
    transform: translateX(100%);
    transition: transform var(--duration-slow) var(--ease-default);
    padding: var(--space-8);
    overflow-y: auto;
}

.mobile-menu[aria-hidden="false"] .mobile-menu__panel {
    transform: translateX(0);
}

.mobile-menu__close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-text);
}

.mobile-nav-menu {
    list-style: none;
    margin-top: var(--space-8);
}

.mobile-nav-menu li {
    border-bottom: var(--border-default);
}

.mobile-nav-menu li a {
    display: block;
    padding: var(--space-4) 0;
    color: var(--color-text);
    font-weight: 500;
}

.mobile-nav-menu li.current-menu-item a {
    border-left: var(--border-accent-bold);
    padding-left: var(--space-4);
    color: var(--color-primary);
}

/* ========================================
   7. FOOTER
   ======================================== */

.site-footer {
    background-color: #1C1917;
    color: #A8A29E;
    border-top: var(--border-accent-bold);
}

.site-footer__newsletter {
    padding: var(--space-12) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.newsletter-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
    flex-wrap: wrap;
}

.newsletter-row__text h3 {
    color: #fff;
    font-size: 1.25rem;
    margin-bottom: var(--space-1);
}

.newsletter-row__text p {
    color: #A8A29E;
    margin-bottom: 0;
}

.newsletter-row__form {
    display: flex;
    gap: var(--space-2);
}

.newsletter-row__form input[type="email"] {
    background-color: #292524;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    min-width: 240px;
}

.newsletter-row__form input[type="email"]::placeholder {
    color: #78716C;
}

.btn-outline-white {
    background: transparent;
    border: 1px solid #fff;
    color: #fff;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    cursor: pointer;
    transition: background-color var(--duration-normal) var(--ease-default),
                color var(--duration-normal) var(--ease-default);
}

.btn-outline-white:hover {
    background-color: #fff;
    color: #1C1917;
}

.site-footer__columns {
    padding: var(--space-12) 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-8);
}

.footer-col__title {
    text-transform: uppercase;
    font-size: 0.6875rem;
    letter-spacing: 0.1em;
    color: #78716C;
    margin-bottom: var(--space-4);
}

.footer-nav {
    list-style: none;
}

.footer-nav li a {
    color: #A8A29E;
    font-size: 0.875rem;
    line-height: 2;
    transition: color var(--duration-normal) var(--ease-default);
}

.footer-nav li a:hover {
    color: #fff;
}

.badge-soon {
    display: inline-block;
    font-size: 0.625rem;
    text-transform: uppercase;
    padding: 1px 6px;
    border: 1px solid #78716C;
    border-radius: var(--radius-sm);
    color: #78716C;
    margin-left: var(--space-1);
    vertical-align: middle;
}

.footer-logo {
    font-size: 1.125rem;
    font-weight: 700;
    color: #fff;
}

.footer-col__desc {
    font-size: 0.8125rem;
    color: #78716C;
    margin-top: var(--space-2);
}

.site-footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: var(--space-4) 0;
    text-align: center;
    font-size: 0.8125rem;
}

/* ========================================
   8. HERO
   ======================================== */

.hero {
    padding: var(--space-40) 0 var(--space-32);
    position: relative;
}

/* Hero dark — image de fond plein écran */
.hero--dark {
    background-size: cover;
    background-position: center 60%;
    background-repeat: no-repeat;
    min-height: 80vh;
    display: flex;
    align-items: flex-end;
    padding-bottom: var(--space-16);
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to right,
        rgba(0, 0, 0, 0.85) 0%,
        rgba(0, 0, 0, 0.7) 40%,
        rgba(0, 0, 0, 0.35) 100%
    );
    z-index: 1;
}

.hero--dark .container {
    position: relative;
    z-index: 2;
}

.hero--dark .hero__content {
    max-width: 640px;
}

/* Label mono-font (sur-titre) */
.hero__label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #F87171;
    margin-bottom: var(--space-6);
    padding: 6px 16px;
    border: 1px solid rgba(248, 113, 113, 0.5);
    border-radius: 99px;
    background: rgba(185, 28, 28, 0.15);
}

.hero__inner {
    display: flex;
    align-items: center;
    gap: var(--space-16);
}

.hero__content {
    flex: 1;
}

/* Typo hero XXL — letter-spacing négatif (Gemini #2) */
.hero__title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-4);
    color: var(--color-text);
}

.hero--dark .hero__title {
    color: #fff;
}

.hero__title-accent {
    color: var(--color-primary);
}

.hero--dark .hero__title-accent {
    color: #F87171;
    display: block;
    font-size: 1.15em;
}

.hero__subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
    max-width: 540px;
    line-height: 1.7;
}

.hero--dark .hero__subtitle {
    color: rgba(255, 255, 255, 0.75);
}

.hero__actions {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* Note : les boutons sur fond sombre utilisent .btn-outline-white (défini dans la section footer) */

.hero__visual {
    flex: 1;
    max-width: 480px;
}

/* ========================================
   9. STATS BAR
   ======================================== */

.stats-bar {
    border-top: var(--border-default);
    border-bottom: var(--border-default);
    padding: var(--space-6) 0;
}

.stats-bar__inner {
    display: flex;
    justify-content: center;
    gap: var(--space-12);
    flex-wrap: wrap;
}

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

.stats-bar__number {
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-text);
}

.stats-bar__label {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-left: var(--space-2);
}

/* ========================================
   10. ACCENT LINE
   ======================================== */

.accent-line {
    display: block;
    width: 40px;
    height: 2px;
    background-color: var(--color-primary);
    margin-bottom: var(--space-4);
}

.section__title .accent-line {
    margin-left: auto;
    margin-right: auto;
    margin-top: var(--space-2);
}

/* ========================================
   11. CTA SECTION
   ======================================== */

.cta-section {
    border-top: var(--border-accent-bold);
    padding: var(--space-32) 0;
    text-align: center;
}

.cta-section__title {
    margin-bottom: var(--space-4);
}

.cta-section__desc {
    color: var(--color-text-secondary);
    font-size: 1.0625rem;
    margin-bottom: var(--space-8);
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
}

.cta-section__note {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: var(--space-3);
}

/* Section CTA sombre (Gemini #8) */
.cta-section--dark {
    background-color: #12100E;
    border-top: none;
}

.cta-section--dark .cta-section__title {
    color: #fff;
    font-size: 2.25rem;
    letter-spacing: -0.02em;
}

.cta-section--dark .cta-section__desc {
    color: #A8A29E;
}

.cta-section--dark .cta-section__note {
    color: #78716C;
}

/* ========================================
   12. SKIP LINK (accessibilité)
   ======================================== */

.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-4);
    z-index: 999;
    background-color: var(--color-primary);
    color: #fff;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
}

.skip-link:focus {
    top: var(--space-4);
}

/* ========================================
   13. RESPONSIVE
   ======================================== */

@media (min-width: 640px) {
    .newsletter-row__form input[type="email"] {
        min-width: 280px;
    }
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .site-header__nav {
        display: block;
    }

    .site-header__hamburger {
        display: none;
    }

    .site-header {
        height: 64px;
    }

    .footer-grid {
        grid-template-columns: repeat(5, 1fr);
    }

    .hero__title {
        font-size: 3rem;
    }
}

@media (max-width: 1023px) {
    .site-header {
        height: 56px;
    }

    .site-header__cta {
        display: none;
    }

    .hero__inner {
        flex-direction: column;
    }

    .hero__visual {
        max-width: 100%;
    }

    .hero__title {
        font-size: 2rem;
    }
}

/* Mobile nav submenu */
.mobile-nav-menu__heading {
    display: block;
    padding: var(--space-4) 0 var(--space-2);
    font-weight: 600;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
}

.mobile-nav-submenu {
    list-style: none;
    padding-left: var(--space-4);
}

.mobile-nav-submenu li a {
    display: block;
    padding: var(--space-2) 0;
    color: var(--color-text);
    font-size: 0.9375rem;
}

.mobile-nav-menu__section {
    border-bottom: var(--border-default);
    padding-bottom: var(--space-2);
}

@media (max-width: 767px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .stats-bar__inner {
        flex-direction: column;
        gap: var(--space-4);
    }
}

/* ========================================
   14. REDUCED MOTION
   ======================================== */

@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;
    }
}