/* PostCard Studio - Elegant Design */

:root {
    --primary: #c17767;
    --primary-dark: #a65d4f;
    --secondary: #7ba8a3;
    --accent: #e8a87c;
    --bg-main: #faf8f5;
    --bg-card: #ffffff;
    --text-primary: #2d2d2d;
    --text-secondary: #6b6b6b;
    --border: #e5ddd5;
    --shadow: rgba(45, 45, 45, 0.08);
    --shadow-hover: rgba(45, 45, 45, 0.15);
}

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

body {
    font-family: 'Raleway', sans-serif;
    background: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Crimson Pro', serif;
    font-weight: 600;
    line-height: 1.3;
}

/* Navigation */
.navbar {
    background: var(--bg-card);
    border-bottom: 2px solid var(--primary);
    padding: 0;
    box-shadow: 0 2px 12px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--primary);
    font-size: 1.5rem;
    font-weight: 700;
    font-family: 'Crimson Pro', serif;
}

.logo-icon {
    font-size: 2rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.logo-text {
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
}

.nav-menu li a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 400;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.nav-menu li a:hover {
    background: var(--bg-main);
    color: var(--primary);
}

.dropdown {
    position: relative;
}

.dropbtn {
    cursor: pointer;
}

.dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    background: var(--bg-card);
    min-width: 200px;
    box-shadow: 0 8px 24px var(--shadow);
    border-radius: 8px;
    margin-top: 0.5rem;
    overflow: hidden;
    border: 1px solid var(--border);
}

.dropdown-content a {
    display: block;
    padding: 0.75rem 1rem;
    text-decoration: none;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border);
}

.dropdown-content a:last-child {
    border-bottom: none;
}

.dropdown-content a:hover {
    background: var(--bg-main);
    color: var(--primary);
}

.dropdown:hover .dropdown-content {
    display: block;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 3rem 0;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Buttons */
.btn, .btn-primary, .btn-secondary, .btn-danger {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Raleway', sans-serif;
    font-size: 0.95rem;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-hover);
}

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

.btn-secondary:hover {
    background: #6a9691;
    transform: translateY(-2px);
}

.btn-danger {
    background: #d94f4f;
    color: white;
}

.btn-danger:hover {
    background: #c23e3e;
}

.btn {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 2px solid var(--border);
}

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

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 16px var(--shadow);
    margin-bottom: 2rem;
    border: 1px solid var(--border);
}

.card-header {
    border-bottom: 2px solid var(--primary);
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
}

.card-header h2 {
    font-size: 1.8rem;
    color: var(--primary);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-family: 'Raleway', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border-left: 4px solid;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border-left-color: #28a745;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border-left-color: #dc3545;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border-left-color: #17a2b8;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border-radius: 8px;
    overflow: hidden;
}

.table th {
    background: var(--primary);
    color: white;
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

.table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
}

.table tr:last-child td {
    border-bottom: none;
}

.table tr:hover {
    background: var(--bg-main);
}

.table-actions {
    display: flex;
    gap: 0.5rem;
}

.table-actions a, .table-actions button {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

/* Postcard Creator */
.postcard-creator {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.panel {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 16px var(--shadow);
    border: 1px solid var(--border);
}

.panel h3 {
    color: var(--primary);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.image-preview {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: 8px;
    margin-top: 1rem;
    border: 2px solid var(--border);
}

.file-upload-wrapper {
    position: relative;
    overflow: hidden;
    display: inline-block;
    width: 100%;
}

.file-upload-wrapper input[type=file] {
    position: absolute;
    left: -9999px;
}

.file-upload-label {
    display: block;
    padding: 1rem;
    background: var(--bg-main);
    border: 2px dashed var(--border);
    border-radius: 8px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.file-upload-label:hover {
    border-color: var(--primary);
    background: white;
}

/* Postcard Preview */
.postcard-preview {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 24px var(--shadow);
    max-width: 600px;
    margin: 2rem auto;
    border: 1px solid var(--border);
}

.postcard-preview img {
    width: 100%;
    display: block;
}

.postcard-content {
    padding: 2rem;
}

.postcard-title {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
    font-family: 'Crimson Pro', serif;
}

.postcard-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-style: italic;
}

.postcard-message {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.postcard-salutation {
    font-size: 1.1rem;
    color: var(--primary);
    font-weight: 600;
    font-family: 'Crimson Pro', serif;
}

/* Grid Layout */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card-item {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 16px var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border);
}

.card-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--shadow-hover);
}

.card-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-item-content {
    padding: 1.5rem;
}

.card-item-title {
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.card-item-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.card-item-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: var(--bg-main);
    text-align: center;
    padding: 2rem 0;
    margin-top: auto;
}

/* Auth Pages */
.auth-container {
    max-width: 500px;
    margin: 4rem auto;
}

.auth-card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 3rem;
    box-shadow: 0 8px 32px var(--shadow);
    border: 1px solid var(--border);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.auth-header p {
    color: var(--text-secondary);
}

.auth-links {
    text-align: center;
    margin-top: 1.5rem;
}

.auth-links a {
    color: var(--primary);
    text-decoration: none;
}

.auth-links a:hover {
    text-decoration: underline;
}

/* Checkbox Styling */
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-main);
    border-radius: 6px;
    border: 2px solid var(--border);
    cursor: pointer;
    transition: all 0.3s ease;
}

.checkbox-item:hover {
    border-color: var(--primary);
}

.checkbox-item input[type="checkbox"] {
    cursor: pointer;
}

.checkbox-item input[type="checkbox"]:checked + label {
    color: var(--primary);
    font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
    .postcard-creator {
        grid-template-columns: 1fr;
    }
    
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        flex-direction: column;
        width: 100%;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--border);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 1s ease-in-out infinite;
}

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

/* Tab Navigation */
.tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid var(--border);
    margin-bottom: 2rem;
}

.tab {
    padding: 1rem 1.5rem;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

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

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

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}