/**
 * Styles principaux - elastiquemusculation.fr
 * Architecture : Mobile-first, CSS moderne
 */

/* ==========================================================================
   Variables CSS
   ========================================================================== */

:root {
    /* Couleurs principales */
    --color-primary: #e11133;
    --color-primary-dark: #c00d2a;
    --color-primary-light: #ff3355;

    --color-secondary: #1a1a2e;
    --color-secondary-light: #2a2a4e;

    --color-accent: #ff6b35;

    /* Couleurs neutres */
    --color-white: #ffffff;
    --color-light: #f8f9fa;
    --color-gray-100: #f2f2f2;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --color-gray-400: #ced4da;
    --color-gray-500: #adb5bd;
    --color-gray-600: #6c757d;
    --color-gray-700: #495057;
    --color-gray-800: #343a40;
    --color-dark: #212529;
    --color-black: #000000;

    /* Couleurs des silos */
    --silo-bases: #2563eb;
    --silo-questions: #7c3aed;
    --silo-exercices: #059669;
    --silo-programmes: #dc2626;

    /* Typography */
    --font-primary: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Montserrat', var(--font-primary);

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;

    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;

    /* Layout */
    --container-max: 1140px;
    --container-narrow: 800px;

    /* Borders & Radius */
    --radius-sm: 0.25rem;
    --radius: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition: 250ms ease;
    --transition-slow: 350ms ease;
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

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

* {
    margin: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: var(--color-dark);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

p, h1, h2, h3, h4, h5, h6 {
    overflow-wrap: break-word;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: var(--line-height-tight);
    color: var(--color-secondary);
    margin-bottom: var(--space-4);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

@media (min-width: 768px) {
    h1 { font-size: var(--font-size-4xl); }
    h2 { font-size: var(--font-size-3xl); }
    h3 { font-size: var(--font-size-2xl); }
}

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

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

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

ul, ol {
    padding-left: var(--space-6);
    margin-bottom: var(--space-4);
}

li {
    margin-bottom: var(--space-2);
}

strong {
    font-weight: 600;
}

/* ==========================================================================
   Layout
   ========================================================================== */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

@media (min-width: 768px) {
    .container {
        padding-left: var(--space-6);
        padding-right: var(--space-6);
    }
}

.site {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.site-content {
    flex: 1;
    padding-top: var(--space-8);
    padding-bottom: var(--space-12);
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
    background: var(--color-secondary);
    color: var(--color-white);
}

.header-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-4);
}

.site-branding .site-title-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-white);
    text-decoration: none;
}

.site-branding .site-title-link:hover {
    color: var(--color-primary-light);
}

.site-branding .site-logo {
    border-radius: var(--radius-sm);
}

.site-branding .site-title {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: 700;
}

/* Navigation */
.primary-navigation-wrap {
    background: var(--color-primary);
}

.primary-navigation-container {
    position: relative;
}

.menu-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: transparent;
    border: none;
    color: var(--color-white);
    cursor: pointer;
    font-weight: 600;
}

.menu-icon {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-white);
    position: relative;
}

.menu-icon::before,
.menu-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background: var(--color-white);
    left: 0;
}

.menu-icon::before { top: -7px; }
.menu-icon::after { bottom: -7px; }

.main-menu {
    display: none;
    list-style: none;
    margin: 0;
    padding: 0;
    background: var(--color-primary-dark);
}

.main-menu.is-open {
    display: block;
}

.main-menu .menu-item {
    margin: 0;
}

.main-menu .menu-item a {
    display: block;
    padding: var(--space-3) var(--space-4);
    color: var(--color-white);
    font-weight: 600;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.main-menu .menu-item a:hover,
.main-menu .menu-item.active a {
    background: var(--color-primary);
    text-decoration: none;
}

@media (min-width: 768px) {
    .menu-toggle {
        display: none;
    }

    .main-menu {
        display: flex;
        background: transparent;
    }

    .main-menu .menu-item a {
        padding: var(--space-4) var(--space-5);
        border-bottom: none;
        position: relative;
    }

    .main-menu .menu-item a::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 0;
        height: 3px;
        background: var(--color-white);
        transition: width var(--transition);
    }

    .main-menu .menu-item a:hover::after,
    .main-menu .menu-item.active a::after {
        width: 80%;
    }
}

/* ==========================================================================
   Content
   ========================================================================== */

.page-header {
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-6);
    border-bottom: 2px solid var(--color-gray-200);
}

.page-header.with-image {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    align-items: center;
}

.page-header.with-image .header-content {
    flex: 1;
}

.page-header.with-image .header-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

@media (min-width: 768px) {
    .page-header.with-image {
        flex-direction: row;
    }

    .page-header.with-image .header-image {
        flex-shrink: 0;
    }
}

.page-title {
    margin-bottom: var(--space-2);
}

.page-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
}

/* Breadcrumb */
.breadcrumb {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--space-6);
}

.breadcrumb a {
    color: var(--color-gray-600);
}

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

.breadcrumb span {
    margin: 0 var(--space-2);
}

/* Article content */
.entry-content {
    max-width: var(--container-narrow);
}

.entry-content h2 {
    margin-top: var(--space-10);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-gray-200);
}

.entry-content h2:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.entry-content img {
    border-radius: var(--radius);
    margin: var(--space-6) 0;
}

.entry-content img.alignleft {
    float: left;
    margin-right: var(--space-6);
    margin-bottom: var(--space-4);
}

.entry-content img.alignright {
    float: right;
    margin-left: var(--space-6);
    margin-bottom: var(--space-4);
}

.entry-content img.aligncenter {
    display: block;
    margin-left: auto;
    margin-right: auto;
}

/* ==========================================================================
   Cards & Grid
   ========================================================================== */

.card-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

@media (min-width: 576px) {
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .card-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
}

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

.card-image {
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.card-content {
    padding: var(--space-5);
}

.card-title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-2);
}

.card-title a {
    color: var(--color-secondary);
}

.card-title a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.card-excerpt {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-bottom: 0;
}

/* Silo cards */
.silo-card {
    border-left: 4px solid var(--silo-color, var(--color-primary));
}

.silo-bases .silo-card { --silo-color: var(--silo-bases); }
.silo-questions .silo-card { --silo-color: var(--silo-questions); }
.silo-exercices .silo-card { --silo-color: var(--silo-exercices); }
.silo-programmes .silo-card { --silo-color: var(--silo-programmes); }

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-block;
    padding: var(--space-3) var(--space-6);
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    color: var(--color-white);
    text-decoration: none;
}

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

.btn-secondary:hover {
    background: var(--color-primary);
    color: var(--color-white);
    text-decoration: none;
}

.btn-large {
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-lg);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    background: var(--color-secondary);
    color: var(--color-gray-400);
    padding: var(--space-12) 0 var(--space-8);
}

.footer-widgets {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-10);
}

@media (min-width: 576px) {
    .footer-widgets {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .footer-widgets {
        grid-template-columns: repeat(4, 1fr);
    }
}

.footer-widget h3 {
    color: var(--color-white);
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-4);
}

.footer-widget ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-widget li {
    margin-bottom: var(--space-2);
}

.footer-widget a {
    color: var(--color-gray-400);
    font-size: var(--font-size-sm);
}

.footer-widget a:hover {
    color: var(--color-white);
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-secondary-light);
    text-align: center;
}

.site-info p {
    margin-bottom: var(--space-2);
    font-size: var(--font-size-sm);
}

.footer-links a {
    color: var(--color-gray-400);
}

.footer-links a:hover {
    color: var(--color-white);
}

/* ==========================================================================
   Error & Placeholder Pages
   ========================================================================== */

.error-404,
.placeholder-page {
    text-align: center;
    max-width: var(--container-narrow);
    margin: 0 auto;
}

.error-suggestions,
.related-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    margin: var(--space-8) 0;
    text-align: left;
}

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

.suggestion-block {
    padding: var(--space-6);
    background: var(--color-light);
    border-radius: var(--radius-lg);
}

.suggestion-block h2 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-3);
}

.suggestion-block p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--space-4);
}

.placeholder-notice {
    padding: var(--space-6);
    background: var(--color-gray-100);
    border-radius: var(--radius);
    border-left: 4px solid var(--color-primary);
    margin-bottom: var(--space-8);
}

.back-home {
    margin-top: var(--space-8);
}

/* ==========================================================================
   Internal Links (Maillage Interne)
   ========================================================================== */

.related-articles {
    margin-top: var(--space-10);
    padding-top: var(--space-8);
    border-top: 2px solid var(--color-gray-200);
}

.related-articles h2 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-6);
}

.related-list {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

@media (min-width: 576px) {
    .related-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

.related-list li {
    margin: 0;
}

.related-list a {
    display: block;
    padding: var(--space-4);
    background: var(--color-light);
    border-radius: var(--radius);
    color: var(--color-secondary);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.related-list a:hover {
    background: var(--color-primary);
    color: var(--color-white);
    text-decoration: none;
}

/* CTA Blocks */
.cta-block {
    padding: var(--space-8);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-white);
    border-radius: var(--radius-lg);
    text-align: center;
    margin: var(--space-8) 0;
}

.cta-block h3 {
    color: var(--color-white);
    margin-bottom: var(--space-4);
}

.cta-block p {
    opacity: 0.9;
    margin-bottom: var(--space-6);
}

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

.cta-block .btn:hover {
    background: var(--color-gray-100);
}

/* ==========================================================================
   Accessibility
   ========================================================================== */

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

.screen-reader-text:focus {
    background: var(--color-white);
    clip: auto;
    height: auto;
    padding: var(--space-4);
    width: auto;
    z-index: 100000;
}

.skip-link {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-2) var(--space-4);
}

/* Focus visible */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
    margin-bottom: var(--space-10);
    padding-bottom: var(--space-8);
    border-bottom: 2px solid var(--color-gray-200);
}

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

.hero-content .page-title {
    margin-bottom: var(--space-4);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    margin-bottom: var(--space-6);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    align-items: center;
}

.hero-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
}

@media (min-width: 768px) {
    .hero-section {
        flex-direction: row;
        align-items: center;
    }

    .hero-content {
        flex: 1;
        text-align: left;
    }

    .hero-description {
        margin-left: 0;
    }

    .hero-cta {
        flex-direction: row;
        justify-content: flex-start;
    }

    .hero-image {
        flex: 1;
        max-width: 50%;
    }
}

/* ==========================================================================
   Sections with Images
   ========================================================================== */

.intro-section.with-image {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    align-items: center;
    margin-bottom: var(--space-8);
}

.intro-section.with-image .intro-text {
    flex: 1;
}

.intro-section.with-image .intro-image {
    flex-shrink: 0;
}

.intro-section.with-image .intro-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

@media (min-width: 768px) {
    .intro-section.with-image {
        flex-direction: row;
    }

    .intro-section.with-image .intro-image {
        max-width: 300px;
    }
}

.content-section.with-image {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    align-items: flex-start;
    margin-top: var(--space-10);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-gray-200);
}

.content-section.with-image .section-text {
    flex: 1;
}

.content-section.with-image .section-text h2 {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.content-section.with-image .section-image {
    flex-shrink: 0;
    align-self: center;
}

.content-section.with-image .section-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

@media (min-width: 768px) {
    .content-section.with-image {
        flex-direction: row;
        align-items: flex-start;
    }

    .content-section.with-image.reverse {
        flex-direction: row-reverse;
    }

    .content-section.with-image .section-image {
        max-width: 300px;
        position: sticky;
        top: var(--space-8);
    }
}

/* Silo cards with images */
.silo-card .card-image {
    aspect-ratio: 1 / 1;
}

.silo-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ==========================================================================
   Tables
   ========================================================================== */

.entry-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-6) 0;
    font-size: var(--font-size-sm);
}

.entry-content th,
.entry-content td {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--color-gray-200);
}

.entry-content th {
    background: var(--color-gray-100);
    font-weight: 600;
    color: var(--color-secondary);
}

.entry-content tr:hover {
    background: var(--color-gray-100);
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
    .site-header,
    .site-footer,
    .menu-toggle,
    .skip-link,
    .related-articles,
    .cta-block {
        display: none !important;
    }

    body {
        font-size: 12pt;
        line-height: 1.5;
    }

    a {
        color: inherit;
        text-decoration: underline;
    }

    .container {
        max-width: 100%;
        padding: 0;
    }
}