/* VaultCam — iOS-native inspired design */

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg: #F2F2F7;
    --card: #FFFFFF;
    --primary: #007AFF;
    --success: #34C759;
    --warning: #FF9500;
    --danger: #FF3B30;
    --text-primary: #1C1C1E;
    --text-secondary: #8E8E93;
    --border: #E5E5EA;
    --radius-card: 16px;
    --radius-btn: 50px;
    --radius-input: 12px;
}

html {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    color: var(--text-primary);
    background: var(--bg);
    -webkit-text-size-adjust: 100%;
}

body {
    min-height: 100dvh;
    padding-bottom: env(safe-area-inset-bottom, 20px);
}

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

img { max-width: 100%; height: auto; display: block; }

/* ── Navbar ── */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    background: var(--card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-brand {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}
.nav-actions { display: flex; align-items: center; gap: 16px; }
.nav-user { font-size: 12px; color: var(--text-secondary); }
.nav-icon { color: var(--text-secondary); }
.nav-link { color: var(--text-secondary); font-size: 15px; }

/* ── Guest Banner ── */
.guest-banner {
    padding: 10px 16px;
    background: #FFF3E0;
    color: #E65100;
    font-size: 13px;
    text-align: center;
    border-bottom: 1px solid #FFB74D;
}
.guest-banner a { color: var(--primary); font-weight: 600; }

/* ── Container ── */
.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px 16px;
}

/* ── Alerts ── */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-input);
    margin-bottom: 16px;
    font-size: 14px;
}
.alert-success { background: #E8F8ED; color: #1B7A36; }
.alert-error { background: #FFE5E5; color: #CC1818; }

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: var(--radius-btn);
    font-size: 16px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: opacity 0.2s;
    text-align: center;
}
.btn:active { opacity: 0.7; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-secondary { background: var(--bg); color: var(--text-primary); border: 1px solid var(--border); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-full { width: 100%; }

/* ── Forms ── */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}
.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-input);
    font-size: 16px;
    font-family: inherit;
    background: var(--card);
    color: var(--text-primary);
    -webkit-appearance: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.15);
}
.form-textarea { resize: vertical; }
.form-hint { font-size: 13px; color: var(--text-secondary); margin-top: 4px; display: block; }
.form-color { width: 48px; height: 48px; border: 1px solid var(--border); border-radius: var(--radius-input); padding: 2px; cursor: pointer; }
.color-input-wrap { display: flex; align-items: center; gap: 12px; }
.form-input-hex { width: 120px; }

/* ── Landing ── */
.landing { text-align: center; padding-top: 60px; }
.landing-hero h1 { font-size: 36px; font-weight: 800; margin-bottom: 8px; }
.landing-tagline { font-size: 18px; color: var(--text-secondary); margin-bottom: 40px; }
.landing-actions { display: flex; flex-direction: column; gap: 12px; max-width: 320px; margin: 0 auto; }
.btn-guest { background: transparent; color: var(--text-secondary); font-size: 15px; font-weight: 500; padding: 10px 28px; }
.auth-card {
    background: var(--card);
    border-radius: var(--radius-card);
    padding: 28px 24px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    max-width: 400px;
    margin: 0 auto;
    text-align: left;
}
.auth-card h2 { font-size: 22px; margin-bottom: 20px; text-align: center; }
.auth-switch { text-align: center; margin-top: 16px; font-size: 14px; color: var(--text-secondary); }

/* ── Dashboard ── */
.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}
.dashboard-header h1 { font-size: 28px; font-weight: 700; }

/* Category Tabs */
.category-tabs {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 8px;
    margin-bottom: 20px;
    -webkit-overflow-scrolling: touch;
}
.category-tabs::-webkit-scrollbar { display: none; }
.tab {
    flex-shrink: 0;
    padding: 8px 18px;
    border-radius: var(--radius-btn);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--card);
    border: 1px solid var(--border);
    white-space: nowrap;
}
.tab-active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* Item Grid */
.item-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.item-card {
    background: var(--card);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    color: var(--text-primary);
    transition: transform 0.15s;
}
.item-card:active { transform: scale(0.97); }
.item-card-image { aspect-ratio: 1; overflow: hidden; background: var(--bg); }
.item-card-image img { width: 100%; height: 100%; object-fit: cover; }
.item-card-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
}
.item-card-body { padding: 10px 12px 14px; }
.item-card-name { font-size: 14px; font-weight: 600; margin-bottom: 2px; }
.item-card-brand { font-size: 12px; color: var(--text-secondary); }
.color-swatch {
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 1px solid var(--border);
    vertical-align: middle;
    margin-top: 4px;
}

/* Value Badge */
.value-badge {
    display: inline-block;
    background: var(--success);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 50px;
    letter-spacing: 0.3px;
    margin-top: 4px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}
.empty-state p { margin-bottom: 20px; font-size: 16px; }

/* ── Add Item ── */
.add-page h1 { font-size: 28px; font-weight: 700; margin-bottom: 20px; }
.section-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}
.category-select { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 24px; }
.category-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 20px 24px;
    border-radius: var(--radius-card);
    border: 2px solid var(--border);
    background: var(--card);
    cursor: pointer;
    font-family: inherit;
    transition: border-color 0.2s;
    flex: 1;
    min-width: 120px;
}
.category-btn.active { border-color: var(--primary); background: rgba(0,122,255,0.06); }
.category-btn-icon { font-size: 32px; }
.category-btn-label { font-size: 14px; font-weight: 600; color: var(--text-primary); }

/* Capture */
.capture-area { text-align: center; margin-bottom: 20px; }
.capture-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 48px;
    border: 2px dashed var(--border);
    border-radius: var(--radius-card);
    background: var(--card);
    cursor: pointer;
    width: 100%;
    color: var(--primary);
    font-size: 16px;
    font-weight: 500;
}
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

#preview-area { margin-bottom: 20px; }
#preview-img {
    width: 100%;
    border-radius: var(--radius-card);
    margin-bottom: 12px;
}

/* Loading */
.loading-spinner {
    text-align: center;
    padding: 60px 20px;
}
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    margin: 0 auto 16px;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Review */
.review-photo img {
    width: 100%;
    max-height: 300px;
    object-fit: cover;
    border-radius: var(--radius-card);
    margin-bottom: 20px;
}

/* ── Item Detail ── */
.back-link {
    display: inline-block;
    margin-bottom: 16px;
    font-size: 15px;
    color: var(--primary);
}
.detail-photo img {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: var(--radius-card);
    margin-bottom: 20px;
}
.detail-info h1 { font-size: 24px; font-weight: 700; margin-bottom: 4px; }
.detail-brand { font-size: 16px; color: var(--text-secondary); margin-bottom: 12px; }
.detail-category-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--bg);
    border-radius: var(--radius-btn);
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}
.detail-value-row {
    display: flex;
    flex-direction: column;
    background: var(--bg);
    border-radius: var(--radius-input);
    padding: 14px 16px;
    margin: 12px 0;
}
.detail-label { font-size: 13px; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.3px; }
.detail-value-amount { font-size: 28px; font-weight: 700; color: var(--text-primary); }
.detail-value-disclaimer { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.detail-props { margin-bottom: 20px; }
.prop-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    font-size: 15px;
}
.prop-label { font-weight: 600; color: var(--text-secondary); min-width: 100px; font-size: 13px; text-transform: uppercase; letter-spacing: 0.3px; }
.color-swatch-lg {
    display: inline-block;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1px solid var(--border);
}
.confidence-high { color: var(--success); font-weight: 600; }
.confidence-medium { color: var(--warning); font-weight: 600; }
.confidence-low { color: var(--danger); font-weight: 600; }
.detail-notes { margin-top: 16px; }
.detail-notes p { margin-top: 4px; color: var(--text-primary); line-height: 1.5; }
.detail-actions { display: flex; flex-direction: column; gap: 10px; margin-top: 28px; }
.delete-form { width: 100%; }

/* ── Search ── */
.search-page h1 { font-size: 28px; font-weight: 700; margin-bottom: 16px; }
.search-form { margin-bottom: 20px; }
.search-input-wrap { display: flex; gap: 8px; }
.search-input { flex: 1; }
.search-count { font-size: 14px; color: var(--text-secondary); margin-bottom: 16px; }

/* ── Responsive ── */
@media (max-width: 375px) {
    .item-grid { grid-template-columns: 1fr; }
}