:root {
    --bg-color: #0c0e14;
    --accent-color: #6366f1;
    --accent-glow: rgba(99, 102, 241, 0.4);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --error-red: #ef4444;
    --success-green: #10b981;
    --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow-x: hidden;
}

/* Glassmorphism Panel */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: var(--card-shadow);
}

/* Auth Container */
#auth-container {
    width: 100%;
    max-width: 450px;
    margin-top: 10vh;
    padding: 40px;
    transition: all 0.3s ease;
}

.header {
    text-align: center;
    margin-bottom: 30px;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    background: linear-gradient(to right, #6366f1, #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header p {
    color: var(--text-secondary);
    margin-top: 8px;
}

/* Admin Container */
#admin-container {
    width: 100%;
    max-width: 1200px;
    padding: 24px;
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Navbar */
.navbar {
    width: 100%;
    padding: 16px 32px;
    margin-bottom: 40px;
    position: sticky;
    top: 20px;
    z-index: 100;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Forms */
.input-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="url"],
input[type="file"] {
    width: 100%;
    padding: 12px 16px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: white;
    font-size: 1rem;
    transition: all 0.2s ease;
}

input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

.primary-btn {
    width: 100%;
    padding: 14px;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.2s;
}

.primary-btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.secondary-btn {
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.secondary-btn:hover {
    background: rgba(255,255,255,0.05);
    color: white;
}

/* File Upload */
.file-upload-wrapper {
    position: relative;
    cursor: pointer;
}

#image-upload {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    z-index: 2;
}

.upload-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    border: 2px dashed var(--glass-border);
    border-radius: 12px;
    color: var(--text-secondary);
    transition: all 0.2s;
    background: rgba(15, 23, 42, 0.4);
}

.file-upload-wrapper:hover .upload-placeholder {
    border-color: var(--accent-color);
    color: var(--text-primary);
}

.upload-placeholder .icon {
    font-size: 2rem;
    margin-bottom: 10px;
}

/* Switch UI */
.checkbox-group {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 10px 0;
}

.switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #334155;
    transition: .4s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--accent-color);
}

input:checked + .slider:before {
    transform: translateX(24px);
}

/* Content Grid */
.content-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

@media (min-width: 900px) {
    .content-wrapper {
        grid-template-columns: 350px 1fr;
    }
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.section-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

#upload-section {
    padding: 24px;
    height: fit-content;
}

.form-grid {
    display: flex;
    flex-direction: column;
}

/* Items List */
.items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.item-card {
    background: rgba(30, 41, 59, 0.4);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.item-card:hover {
    transform: translateY(-5px);
    background: rgba(30, 41, 59, 0.6);
}

.item-image {
    width: 100%;
    height: 180px;
    object-fit: contain;
    background: white;
    padding: 10px;
}

.item-details {
    padding: 20px;
}

.item-details h3 {
    font-size: 1.125rem;
    margin-bottom: 4px;
}

.item-details p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.tag {
    display: inline-block;
    padding: 4px 10px;
    font-size: 0.75rem;
    border-radius: 20px;
    margin-right: 8px;
    font-weight: 600;
}

.tag-visible { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.tag-hidden { background: rgba(239, 68, 68, 0.15); color: #f87171; }

.item-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.action-btn {
    flex: 1;
    padding: 8px;
    border-radius: 8px;
    border: none;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.edit-btn { background: #334155; color: white; }
.edit-btn:hover { background: #475569; }

.delete-btn { background: rgba(239, 68, 68, 0.1); color: #f87171; }
.delete-btn:hover { background: rgba(239, 68, 68, 0.2); }

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.8);
    backdrop-filter: blur(4px);
}

.modal-content {
    margin: 10% auto;
    padding: 30px;
    width: 90%;
    max-width: 500px;
}

.close-modal {
    float: right;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-secondary);
}

.gallery-manager {
    margin: 25px 0;
    padding-top: 20px;
    border-top: 1px solid var(--glass-border);
}

.gallery-manager h3 {
    font-size: 1rem;
    margin-bottom: 15px;
    color: var(--text-secondary);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 12px;
    margin-bottom: 15px;
}

.gallery-item {
    position: relative;
    aspect-ratio: 1;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
}

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

.gallery-item-actions {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
    opacity: 0;
    transition: opacity 0.2s;
}

.gallery-item:hover .gallery-item-actions {
    opacity: 1;
}

.gallery-btn {
    padding: 4px 8px;
    font-size: 10px;
    background: var(--accent-color);
    border: none;
    border-radius: 4px;
    color: white;
    cursor: pointer;
}

.gallery-btn.delete {
    background: var(--error-red);
}

.add-image-form {
    text-align: center;
}

/* Progress Bar */
.progress-bar-container {
    width: 100%;
    height: 8px;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    margin-top: 15px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--accent-color);
    width: 0%;
    transition: width 0.3s;
}

.error-msg {
    color: var(--error-red);
    font-size: 0.875rem;
    margin-top: 10px;
    text-align: center;
}

/* Search bar */
.search-bar input {
    width: 250px;
    padding: 8px 16px;
    font-size: 0.875rem;
}