@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: rgba(239, 68, 68, 0.77);
    --primary-dark: rgba(220, 38, 38, 0.9);
    --danger: rgba(239, 68, 68, 0.77);
    --success: #10b981;
    --warning: #f59e0b;
    --dark: #1f2937;
    --dark-light: #374151;
    --gray: #6b7280;
    --gray-light: #d1d5db;
    --gray-lighter: #f3f4f6;
    --white: #ffffff;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--gray-lighter);
    color: var(--dark);
}

.login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.77) 0%, rgba(220, 38, 38, 0.9) 100%);
    padding: 2rem;
}

.login-container {
    background: var(--white);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    max-width: 450px;
    width: 100%;
}

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

.login-header i {
    font-size: 4rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.login-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--gray);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--dark);
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 0.875rem;
    border: 2px solid var(--gray-light);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.btn {
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

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

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

.btn-danger {
    background: var(--danger);
    color: var(--white);
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-danger:hover {
    background: #dc2626;
}

.error-message {
    background: #fee2e2;
    color: var(--danger);
    padding: 0.875rem;
    border-radius: 10px;
    font-size: 0.9rem;
    text-align: center;
}

.admin-panel {
    min-height: 100vh;
}

.admin-nav {
    background: var(--white);
    padding: 1rem 2rem;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.admin-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.admin-header {
    margin-bottom: 3rem;
}

.admin-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.admin-header p {
    color: var(--gray);
    font-size: 1.125rem;
}

.upload-section,
.gallery-section {
    background: var(--white);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.upload-section h2,
.gallery-section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.upload-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.image-preview {
    margin-top: 1rem;
    display: none;
}

.image-preview img {
    max-width: 300px;
    max-height: 300px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.filter-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.625rem 1.25rem;
    border: 2px solid var(--gray-light);
    background: var(--white);
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    color: var(--dark);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.gallery-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.gallery-item-info {
    padding: 1rem;
    background: var(--white);
}

.gallery-item-info h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.25rem;
}

.gallery-item-info p {
    font-size: 0.875rem;
    color: var(--gray);
    margin-bottom: 0.5rem;
}

.gallery-item-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary);
    color: var(--white);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.gallery-item-actions {
    padding: 0.75rem 1rem;
    background: var(--gray-lighter);
    display: flex;
    justify-content: flex-end;
}

.loading {
    text-align: center;
    padding: 3rem;
    color: var(--gray);
    font-size: 1.125rem;
}

.notification {
    position: fixed;
    top: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    font-weight: 600;
    transform: translateX(400px);
    transition: var(--transition);
    z-index: 1000;
}

.notification.show {
    transform: translateX(0);
}

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

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

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .admin-container {
        padding: 2rem 1rem;
    }
}