/* 
 * QuickSharePhotos - Shared Styles
 * Common styles used across all pages
 */

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #333;
    min-height: 100vh;
}

/* Color Variables (as classes for reuse) */
:root {
    --primary-start: #667eea;
    --primary-end: #764ba2;
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --danger: #ff4757;
    --danger-hover: #ff3742;
    --success-bg: #d4edda;
    --success-text: #155724;
    --success-border: #c3e6cb;
    --error-bg: #f8d7da;
    --error-text: #721c24;
    --error-border: #f5c6cb;
    --gray-light: #f8f9fa;
    --gray-border: #eee;
    --text-muted: #666;
    --text-light: #999;
}

/* Gradient Background */
.bg-gradient {
    background: var(--primary-gradient);
}

/* Header Component */
.header {
    background: var(--primary-gradient);
    color: white;
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    font-size: 2em;
    font-weight: 300;
}

.header-nav {
    display: flex;
    gap: 10px;
}

.header-btn {
    background: rgba(255,255,255,0.2);
    color: white;
    padding: 8px 16px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-size: 14px;
    transition: background 0.3s ease;
}

.header-btn:hover {
    background: rgba(255,255,255,0.3);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Buttons */
.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-size: 12px;
    transition: background 0.3s ease;
    display: inline-block;
}

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

.btn-primary:hover {
    background: #5a67d8;
}

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

.btn-danger:hover {
    background: var(--danger-hover);
}

/* Messages */
.message {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 10px;
    font-weight: 500;
}

.message.success {
    background: var(--success-bg);
    color: var(--success-text);
    border: 1px solid var(--success-border);
}

.message.error {
    background: var(--error-bg);
    color: var(--error-text);
    border: 1px solid var(--error-border);
}

.message a {
    color: inherit;
    font-weight: 600;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.pagination a, .pagination span {
    padding: 10px 16px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.pagination a {
    background: white;
    color: var(--primary-start);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.pagination a:hover {
    background: var(--primary-start);
    color: white;
    transform: translateY(-2px);
}

.pagination .current {
    background: var(--primary-gradient);
    color: white;
}

.pagination .disabled {
    background: #eee;
    color: #999;
    cursor: not-allowed;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 95%;
    max-height: 95%;
}

.modal-image {
    max-width: 100%;
    max-height: 90vh;
    border-radius: 5px;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: 1001;
    transition: color 0.3s ease;
}

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

/* Loading Spinner */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-start);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 10px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .header-nav {
        gap: 10px;
    }
}