:root {
    --bg-color: #0F172A; /* Deep dark background */
    --surface-color: rgba(30, 41, 59, 0.7); /* Glass surface */
    --accent-glow: #E0E0EC; /* Silver glow - Dark Classic Theme */
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --border-color: rgba(255, 255, 255, 0.1);
    --border-radius-card: 24px;
    --glass-blur: blur(12px);
    --nav-height: 80px;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

#app {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

header {
    padding: 20px;
    text-align: center;
    position: sticky;
    top: 0;
    z-index: 10;
    background: linear-gradient(to bottom, var(--bg-color) 60%, transparent);
}

h1#page-title {
    font-weight: 300;
    letter-spacing: 2px;
    font-size: 1.2rem;
    color: var(--accent-glow);
}

main#content {
    flex: 1;
    overflow-y: auto;
    padding: 0 16px;
    padding-bottom: calc(var(--nav-height) + 20px);
}

/* Glassmorphism Cards */
.card.glass {
    background: var(--surface-color);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-card);
    padding: 20px;
    margin-bottom: 16px;
}

/* Masonry Grid */
.masonry-grid {
    column-count: 2;
    column-gap: 16px;
    width: 100%;
}

.wardrobe-item {
    background: var(--surface-color);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-card);
    overflow: hidden;
    break-inside: avoid;
    margin-bottom: 16px;
    display: inline-block;
    width: 100%;
}

.wardrobe-item img {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-bottom: 1px solid var(--border-color);
}

.wardrobe-item-info {
    padding: 12px;
}

.wardrobe-item-title {
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 4px;
}

.wardrobe-item-category {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Bottom Navigation */
#bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding-bottom: env(safe-area-inset-bottom, 20px);
    z-index: 100;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.nav-item.active {
    color: var(--accent-glow);
}

.nav-item .icon {
    font-size: 1.5rem;
}

.nav-item span:not(.icon) {
    font-size: 0.75rem;
    margin-top: 4px;
}

/* FAB */
.fab {
    position: fixed;
    bottom: calc(var(--nav-height) + 20px);
    right: 20px;
    width: 56px;
    height: 56px;
    border-radius: 28px;
    background: var(--accent-glow);
    color: var(--bg-color);
    font-size: 24px;
    border: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 50;
    transition: transform 0.2s ease;
}

.fab:active {
    transform: scale(0.95);
}