/**
 * OutilsPro - Styles CSS principaux
 * Design responsive mobile-first (320px à 4K)
 * Thème sombre/clair automatique
 */

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

:root {
    /* Couleurs primaires */
    --primary-color: #007BFF;
    --primary-hover: #0056b3;
    --success-color: #28A745;
    --warning-color: #FFC107;
    --danger-color: #DC3545;
    --info-color: #17A2B8;
    
    /* Thème clair (par défaut) */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --border-color: #dee2e6;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.15);
    
    /* Layout */
    --header-height: 70px;
    --sidebar-width: 280px;
    --footer-height: auto;
    --border-radius: 8px;
    --transition-speed: 0.3s;
    
    /* Typography */
    --font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --font-size-small: 14px;
    --font-size-large: 18px;
    --font-size-xlarge: 24px;
    --line-height: 1.6;
}

/* Thème sombre automatique basé sur prefers-color-scheme */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #1a1a1a;
        --bg-secondary: #2d2d2d;
        --bg-tertiary: #3d3d3d;
        --text-primary: #f8f9fa;
        --text-secondary: #adb5bd;
        --border-color: #495057;
        --shadow-color: rgba(0, 0, 0, 0.3);
        --shadow-hover: rgba(0, 0, 0, 0.5);
    }
}

/* Force thème sombre avec classe */
body.dark-theme {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #3d3d3d;
    --text-primary: #f8f9fa;
    --text-secondary: #adb5bd;
    --border-color: #495057;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --shadow-hover: rgba(0, 0, 0, 0.5);
}

/* Force thème clair avec classe */
body.light-theme {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --border-color: #dee2e6;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.15);
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: var(--line-height);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ============================================
   HEADER
   ============================================ */
.header {
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 4px var(--shadow-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
}

.header-container {
    max-width: 100%;
    padding: 0 20px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: var(--font-size-large);
    font-weight: 700;
    transition: color var(--transition-speed);
}

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

.logo-icon {
    font-size: 28px;
}

.logo-text {
    white-space: nowrap;
}

/* Search Bar */
.search-bar {
    flex: 1;
    max-width: 500px;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 12px 45px 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: all var(--transition-speed);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.search-icon {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 18px;
    pointer-events: none;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.language-selector {
    position: relative;
}

.language-selector .btn-icon {
    background: none;
    border: 1px solid var(--border-color);
    padding: 10px 15px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 20px;
    transition: all var(--transition-speed);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
}

.language-selector .btn-icon:hover {
    background-color: var(--bg-tertiary);
    transform: scale(1.05);
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px var(--shadow-color);
    min-width: 180px;
    z-index: 1001;
    display: none;
    margin-top: 5px;
}

.language-dropdown.active {
    display: block;
    border-color: #ff0000 !important; /* Debug border */
    box-shadow: 0 0 10px rgba(255, 0, 0, 0.5) !important;
}

.language-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all var(--transition-speed);
    border-bottom: 1px solid var(--border-color);
}

.language-option:last-child {
    border-bottom: none;
}

.language-option:hover {
    background-color: var(--bg-tertiary);
    color: var(--primary-color);
}

.language-option.active {
    background-color: var(--bg-secondary);
    color: var(--primary-color);
    font-weight: 500;
}

.btn-icon {
    background: none;
    border: 1px solid var(--border-color);
    padding: 10px 15px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 20px;
    transition: all var(--transition-speed);
    color: var(--text-primary);
}

.btn-icon:hover {
    background-color: var(--bg-tertiary);
    transform: scale(1.05);
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: 500;
    transition: all var(--transition-speed);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--shadow-hover);
}

/* ============================================
   MAIN WRAPPER & LAYOUT
   ============================================ */
.main-wrapper {
    display: flex;
    flex: 1;
    max-width: 100%;
}

/* ============================================
   SIDEBAR NAVIGATION
   ============================================ */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    transition: transform var(--transition-speed);
    height: calc(100vh - var(--header-height));
    position: sticky;
    top: var(--header-height);
}

.sidebar-nav {
    padding: 20px;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.sidebar-title {
    font-size: var(--font-size-large);
    font-weight: 600;
    color: var(--text-primary);
}

.sidebar-close {
    display: none;
}

/* Navigation Categories */
.nav-category {
    margin-bottom: 15px;
}

.nav-category-header {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    transition: all var(--transition-speed);
}

.nav-category-header:hover {
    background-color: var(--bg-tertiary);
}

.nav-icon {
    font-size: 20px;
}

.nav-title {
    flex: 1;
    text-align: left;
}

.nav-toggle {
    transition: transform var(--transition-speed);
}

.nav-category-header[aria-expanded="false"] .nav-toggle {
    transform: rotate(-90deg);
}

.nav-category-list {
    list-style: none;
    padding-left: 15px;
    margin-top: 10px;
    max-height: 500px;
    overflow: hidden;
    transition: max-height var(--transition-speed);
}

.nav-category-header[aria-expanded="false"] + .nav-category-list {
    max-height: 0;
    margin-top: 0;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 15px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: all var(--transition-speed);
    font-size: var(--font-size-small);
}

.nav-link:hover,
.nav-link.active {
    background-color: var(--bg-tertiary);
    color: var(--primary-color);
    transform: translateX(5px);
}

.tool-icon {
    font-size: 18px;
}

/* Sidebar Ad */
.sidebar-ad {
    margin-top: 30px;
    padding: 15px;
    border-radius: var(--border-radius);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.main-content {
    flex: 1;
    padding: 30px;
    overflow-x: hidden;
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 20px;
}

/* Tool Card */
.tool-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: 0 2px 4px var(--shadow-color);
    transition: all var(--transition-speed);
    cursor: pointer;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px var(--shadow-hover);
    border-color: var(--primary-color);
}

.tool-card-icon {
    font-size: 48px;
    margin-bottom: 15px;
    display: block;
}

.tool-card-title {
    font-size: var(--font-size-large);
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.tool-card-description {
    font-size: var(--font-size-small);
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.5;
}

.btn-use-tool {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.btn-use-tool:hover {
    background-color: var(--primary-hover);
}

/* Tool Container (when tool is opened) */
.tool-container {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: 0 2px 8px var(--shadow-color);
    margin-bottom: 30px;
}

.tool-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.tool-title {
    font-size: var(--font-size-xlarge);
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 15px;
}

.btn-back {
    padding: 8px 16px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: var(--font-size-small);
    color: var(--text-primary);
    transition: all var(--transition-speed);
}

.btn-back:hover {
    background-color: var(--bg-tertiary);
}

/* Form Elements */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: var(--font-size-base);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: all var(--transition-speed);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn-success:hover {
    background-color: #218838;
    transform: translateY(-2px);
}

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

.btn-copy:hover {
    background-color: #138496;
}

/* Result Box */
.result-box {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-top: 20px;
    position: relative;
}

.result-box pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    margin: 0;
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-small);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    margin-top: auto;
    padding: 40px 20px 20px;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-column {
}

.footer-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

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

.footer-links li {
    margin-bottom: 8px;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-small);
    transition: color var(--transition-speed);
}

.footer-link:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.footer-bottom-content {
    text-align: center;
    font-size: var(--font-size-small);
    color: var(--text-secondary);
}

.footer-bottom-content p {
    margin: 5px 0;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 15px;
}

.social-link {
    font-size: 24px;
    transition: transform var(--transition-speed);
    text-decoration: none;
}

.social-link:hover {
    transform: scale(1.2);
}

/* ============================================
   MODAL
   ============================================ */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: 20px 25px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    font-size: var(--font-size-large);
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color var(--transition-speed);
}

.modal-close:hover {
    color: var(--danger-color);
}

.modal-body {
    padding: 25px;
}

/* ============================================
   TOAST NOTIFICATION
   ============================================ */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--success-color);
    color: white;
    padding: 15px 25px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    z-index: 3000;
    display: none;
    animation: toastSlideIn 0.3s ease-out;
}

.toast.show {
    display: block;
}

.toast.error {
    background-color: var(--danger-color);
}

.toast.warning {
    background-color: var(--warning-color);
}

.toast.info {
    background-color: var(--info-color);
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ============================================
   LOADING SPINNER
   ============================================ */
.loading-spinner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 2500;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid var(--bg-tertiary);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-spinner p {
    color: white;
    margin-top: 20px;
    font-size: var(--font-size-large);
}

/* ============================================
   AD PLACEHOLDERS
   ============================================ */
.ad-placeholder {
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--font-size-small);
}

.mobile-ad-sticky {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -2px 8px var(--shadow-color);
    padding: 10px;
    z-index: 1500;
}

.mobile-ad-sticky .ad-close {
    position: absolute;
    top: 5px;
    right: 10px;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.desktop-only {
    display: block;
}

.mobile-only {
    display: none;
}

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

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

/* ============================================
   RESPONSIVE DESIGN - MOBILE FIRST
   ============================================ */

/* Smartphones (portrait) - 320px to 767px */
@media screen and (max-width: 767px) {
    :root {
        --font-size-base: 14px;
        --header-height: 60px;
    }
    
    .header-container {
        padding: 0 15px;
    }
    
    .logo-text {
        font-size: var(--font-size-base);
    }
    
    .search-bar {
        display: none;
    }
    
    .btn-primary {
        display: none;
    }
    
    .desktop-only {
        display: none !important;
    }
    
    .mobile-only {
        display: block !important;
    }
    
    /* Sidebar - Mobile Menu */
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: 85%;
        max-width: 320px;
        height: 100vh;
        z-index: 2001;
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: 2000;
    }
    
    .sidebar-overlay.active {
        display: block;
    }
    
    .sidebar-close {
        display: block !important;
        background: none;
        border: none;
        font-size: 32px;
        cursor: pointer;
        color: var(--text-primary);
    }
    
    .main-content {
        padding: 15px;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .tool-container {
        padding: 20px 15px;
    }
    
    .mobile-ad-sticky {
        display: block;
    }
    
    .toast {
        right: 15px;
        left: 15px;
        bottom: 70px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
}

/* Tablets (768px to 1023px) */
@media screen and (min-width: 768px) and (max-width: 1023px) {
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .search-bar {
        max-width: 300px;
    }
}

/* Desktop (1024px to 1439px) */
@media screen and (min-width: 1024px) {
    .tools-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Large Desktop (1440px to 2559px) */
@media screen and (min-width: 1440px) {
    .tools-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

/* 4K and above (2560px+) */
@media screen and (min-width: 2560px) {
    :root {
        --font-size-base: 18px;
    }
    
    .header-container,
    .footer-container {
        max-width: 2400px;
        margin: 0 auto;
    }
    
    .tools-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

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

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000;
    }
    
    body.dark-theme {
        --border-color: #fff;
    }
}