/* 
 * LinkHub - Styles CSS
 * Dernière modification : 22 octobre 2025
 */

/* Variables CSS pour faciliter la maintenance */
:root {
    --color-primary: #3b82f6;
    --color-primary-dark: #2563eb;
    --color-primary-gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --color-success: #22c55e;
    --color-success-dark: #16a34a;
    --color-danger: #dc2626;
    --color-danger-light: #fee2e2;
    --color-warning: #f97316;
    
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-900: #1f2937;
    
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.2);
    
    --transition: all 0.2s ease;
    
    /* Thème clair par défaut */
    --bg-body: linear-gradient(to bottom right, #f9fafb, #e5e7eb);
    --bg-header: white;
    --bg-card-add: transparent;
    --bg-card-add-hover: #f9fafb;
    --bg-modal: white;
    --bg-btn-cancel: #e5e7eb;
    --bg-btn-settings: #e5e7eb;
    --bg-toast: white;
    
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-tab: #6b7280;
    --text-tab-hover: #1f2937;
    --text-add-card: #9ca3af;
    --text-add-card-label: #4b5563;
    
    --border-header: #e5e7eb;
    --border-tabs: #e5e7eb;
    --border-input: #d1d5db;
    --border-card-add: #d1d5db;
    --border-card-add-hover: #9ca3af;
}

/* Mode sombre */
body.dark-mode {
    --bg-body: linear-gradient(to bottom right, #0f172a, #1e293b);
    --bg-header: #1e293b;
    --bg-card-add: transparent;
    --bg-card-add-hover: #334155;
    --bg-modal: #1e293b;
    --bg-btn-cancel: #334155;
    --bg-btn-settings: #334155;
    --bg-toast: #1e293b;
    
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tab: #94a3b8;
    --text-tab-hover: #f1f5f9;
    --text-add-card: #64748b;
    --text-add-card-label: #cbd5e1;
    
    --border-header: #334155;
    --border-tabs: #334155;
    --border-input: #475569;
    --border-card-add: #475569;
    --border-card-add-hover: #64748b;
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.3);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.5);
    
    --color-danger-light: #7f1d1d;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-body);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    color: var(--text-primary);
    transition: background 0.3s ease, color 0.3s ease;
}

/* Header */
.header {
    background: var(--bg-header);
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--border-header);
    transition: background 0.3s ease, border-color 0.3s ease;
}

.header-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    width: 3rem;
    height: 3rem;
    background: var(--color-primary-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    transition: var(--transition);
    flex-shrink: 0;
}

.logo i {
    font-size: 1.5rem;
    color: white;
    transform: rotate(-45deg);
}

.logo:hover {
    transform: scale(1.05) rotate(5deg);
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4);
}

.app-title {
    font-size: 1.75rem;
    font-weight: 700;
    background: var(--color-primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
    letter-spacing: -0.02em;
}

.header-buttons {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* Boutons - Style de base factorisé */
.btn,
.icon-btn,
.card-btn {
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.btn {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

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

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

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

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

.btn-settings {
    background: var(--bg-btn-settings);
    color: var(--text-secondary);
    padding: 0.5rem;
    transition: var(--transition);
}

.btn-settings.active {
    background: var(--color-warning);
    color: white;
}

.btn-theme {
    background: var(--bg-btn-settings);
    color: var(--text-secondary);
    padding: 0.5rem;
    transition: var(--transition);
}

.btn-theme:hover {
    background: var(--color-gray-300);
    transform: rotate(180deg);
}

body.dark-mode .btn-theme:hover {
    background: #475569;
}

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

.btn-cancel:hover {
    background: var(--color-gray-300);
}

body.dark-mode .btn-cancel:hover {
    background: #475569;
}

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

.btn-save:hover {
    background: var(--color-primary-dark);
}

/* Container principal */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem;
    width: 100%;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Onglets */
.tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid var(--border-tabs);
    overflow-x: auto;
    margin-top: 1.5rem;
    padding-bottom: 0.5rem;
    transition: border-color 0.3s ease;
}

.tab {
    position: relative;
    padding: 0.75rem 1.5rem;
    border: none;
    background: none;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-tab);
    transition: color 0.2s;
    white-space: nowrap;
}

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

.tab.active {
    color: var(--color-primary);
    border-bottom: 2px solid var(--color-primary);
}

.tab.dragging {
    opacity: 0.5;
}

.tab-actions {
    position: absolute;
    top: 0.25rem;
    right: 0.25rem;
    display: none;
    gap: 0.25rem;
}

.tab:hover .tab-actions {
    display: flex;
}

/* Boutons icône */
.icon-btn {
    padding: 0.25rem;
    background: var(--bg-header);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-radius: var(--radius-sm);
}

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

body.dark-mode .icon-btn:hover {
    background: #334155;
}

.icon-btn.delete:hover {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

/* Grille de cartes */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
    opacity: 0;
    animation: fadeIn 0.3s ease-in forwards;
    align-content: start;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

/* Cartes */
.card {
    position: relative;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 140px;
    opacity: 0;
    animation: cardPop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes cardPop {
    0% {
        opacity: 0;
        transform: scale(0.8) translateY(20px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* Délai progressif pour l'animation des cartes */
.card:nth-child(1) { animation-delay: 0.05s; }
.card:nth-child(2) { animation-delay: 0.1s; }
.card:nth-child(3) { animation-delay: 0.15s; }
.card:nth-child(4) { animation-delay: 0.2s; }
.card:nth-child(5) { animation-delay: 0.25s; }
.card:nth-child(6) { animation-delay: 0.3s; }
.card:nth-child(7) { animation-delay: 0.35s; }
.card:nth-child(8) { animation-delay: 0.4s; }
.card:nth-child(9) { animation-delay: 0.45s; }
.card:nth-child(10) { animation-delay: 0.5s; }

.card:not(.add-card):hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.card.dragging {
    opacity: 0.5;
    transform: rotate(5deg);
}

.card h3 {
    color: white;
    font-size: 1.25rem;
    font-weight: 600;
    text-align: center;
    word-wrap: break-word;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.card-actions {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    display: none;
    gap: 0.5rem;
    z-index: 10;
}

.card:hover .card-actions {
    display: flex;
}

.card-btn {
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.95);
    color: #374151;
    border-radius: var(--radius-md);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
}

.card-btn:hover {
    background: white;
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.card-btn.delete:hover {
    background: var(--color-danger);
    color: white;
}

/* Carte d'ajout */
.add-card {
    border: 2px dashed var(--border-card-add);
    background: var(--bg-card-add);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 140px;
    transition: var(--transition);
}

.add-card:hover {
    border-color: var(--border-card-add-hover);
    background: var(--bg-card-add-hover);
    transform: none;
}

.add-card svg {
    color: var(--text-add-card);
    margin-bottom: 0.5rem;
}

.add-card span {
    color: var(--text-add-card-label);
    font-weight: 500;
}

/* Icône de grip */
.grip-icon {
    position: absolute;
    top: 0.5rem;
    left: 0.5rem;
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition);
}

.grip-icon svg {
    width: 24px;
    height: 24px;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.3));
}

.card:hover .grip-icon {
    color: rgba(255, 255, 255, 0.9);
    transform: scale(1.1);
}

/* Modales */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: var(--bg-modal);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 100%;
    transition: background 0.3s ease;
}

.modal-content h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* Formulaires */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.form-group input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-input);
    border-radius: var(--radius-md);
    font-size: 1rem;
    background: var(--bg-header);
    color: var(--text-primary);
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group input[type="color"] {
    height: 2.5rem;
    cursor: pointer;
}

.modal-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1.5rem;
    justify-content: flex-end;
}

.modal-actions .btn {
    flex: 0 0 auto;
    min-width: 100px;
}

/* Utilitaires */
.hidden {
    display: none !important;
}

/* Toast notifications */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--bg-toast);
    color: var(--text-primary);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 2000;
    opacity: 0;
    transform: translateY(100px);
    animation: toastSlideIn 0.3s ease-out forwards;
    pointer-events: none;
    transition: background 0.3s ease;
}

body.dark-mode .toast {
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
}

.toast.success {
    border-left: 4px solid var(--color-success);
}

.toast.error {
    border-left: 4px solid var(--color-danger);
}

.toast-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

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

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

.toast-message {
    font-weight: 500;
    font-size: 0.9375rem;
}

@keyframes toastSlideIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.toast.hiding {
    animation: toastSlideOut 0.3s ease-in forwards;
}

@keyframes toastSlideOut {
    to {
        opacity: 0;
        transform: translateY(100px);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .logo-container {
        gap: 0.75rem;
    }
    
    .logo {
        width: 2.5rem;
        height: 2.5rem;
    }
    
    .logo i {
        font-size: 1.25rem;
    }
    
    .app-title {
        font-size: 1.25rem;
    }
    
    .header-buttons .btn span {
        display: none;
    }
    
    .cards-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}