:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #38bdf8;
    --accent-hover: #0ea5e9;
    --danger-color: #ef4444;
    --glass-border: 1px solid rgba(255, 255, 255, 0.1);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --font-family: 'Heebo', sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    padding-bottom: 80px;
}

/* Header */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo-img {
    width: 25vw;
    /* 25% of viewport width = quarter screen */
    max-height: 150px;
    object-fit: contain;
    mix-blend-mode: screen;
    /* Makes black background transparent */
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.3s;
    padding: 8px;
}

.icon-btn:hover {
    color: var(--accent-color);
}

/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
}

@media (min-width: 600px) {
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 25px;
    }
}

/* Image Card */
.gallery-item {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    border: var(--glass-border);
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    aspect-ratio: 3/4;
    display: flex;
    flex-direction: column;
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    flex-grow: 1;
}

.item-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(8px);
    padding: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: var(--glass-border);
}

.price-tag {
    background: var(--accent-color);
    color: white;
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.9rem;
}

.artwork-title {
    color: white;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 2px;
    display: block;
}

.edit-btn {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: var(--text-primary);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    margin-right: 5px;
}

.edit-btn:hover {
    background: var(--accent-color);
}

.whatsapp-icon-btn {
    background: #25D366;
    border: none;
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: transform 0.2s;
}

.whatsapp-icon-btn:hover {
    transform: scale(1.1);
    background: #128C7E;
}

.magnify-btn {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: var(--text-primary);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    margin-left: 5px;
}

.magnify-btn:hover {
    background: var(--accent-color);
}

.gallery-img-trigger {
    cursor: pointer;
}

/* Admin Controls */
.admin-controls {
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 100;
}

.fab-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--accent-color);
    color: white;
    border: none;
    font-size: 1.5rem;
    box-shadow: 0 10px 25px -5px rgba(56, 189, 248, 0.5);
    cursor: pointer;
    transition: transform 0.2s, background 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.fab-btn:hover {
    transform: scale(1.1);
    background: var(--accent-hover);
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
    transition: opacity 0.3s;
}

.modal.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal-content {
    background: #1e293b;
    padding: 30px;
    border-radius: 20px;
    width: 90%;
    max-width: 400px;
    border: var(--glass-border);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    text-align: center;
}

.close-modal {
    position: absolute;
    top: 15px;
    left: 15px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
}

.modal h2 {
    margin-bottom: 20px;
    font-weight: 500;
}

input {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 15px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid #334155;
    border-radius: 8px;
    color: white;
    font-family: inherit;
    font-size: 1rem;
}

input:focus {
    outline: none;
    border-color: var(--accent-color);
}

.primary-btn {
    width: 100%;
    padding: 12px;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

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

.danger-btn {
    width: 100%;
    padding: 12px;
    background: transparent;
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    margin-top: 10px;
}

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

.hidden {
    display: none !important;
}

.error-msg {
    color: var(--danger-color);
    margin-top: 10px;
    font-size: 0.9rem;
}

.file-upload-container {
    margin-bottom: 20px;
}

.file-upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px;
    border: 2px dashed #334155;
    border-radius: 12px;
    cursor: pointer;
    transition: border-color 0.3s, background 0.3s;
}

.file-upload-label:hover {
    border-color: var(--accent-color);
    background: rgba(56, 189, 248, 0.05);
}

.file-upload-label i {
    font-size: 2rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

#image-upload {
    display: none;
}

#image-preview-container {
    margin-top: 15px;
    border-radius: 8px;
    overflow: hidden;
    max-height: 200px;
}

#image-preview {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.modal-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.whatsapp-btn {
    background: #25D366;
}

.whatsapp-btn:hover {
    background: #128C7E;
}

/* Lightbox */
.lightbox-modal {
    background: rgba(0, 0, 0, 0.95);
    padding: 0;
}

.lightbox-modal img {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 3rem;
    color: white;
    opacity: 0.8;
    transition: opacity 0.3s;
    cursor: pointer;
    z-index: 1001;
}

.lightbox-close:hover {
    opacity: 1;
}