:root {
    --bg: #0b0c0f;
    --bg-card: #11131a;
    --accent: #ff7f4d;
    --accent-dark: #603326;
    --accent-soft: rgba(255, 127, 77, 0.18);
    --accent-border: rgba(255, 127, 77, 0.7);
    --accent-border-strong: rgba(255, 127, 77, 0.95);
    --accent-ring: rgba(255, 127, 77, 0.12);
    --accent-halo: rgba(255, 127, 77, 0.08);
    --accent-halo-strong: rgba(255, 127, 77, 0.12);
    --text: #f7f7ff;
    --text-muted: #a3a5b3;
    --text-keyword: #c7d2ff;
    --text-keyword-strong: #5272ff;
    --border-soft: #26293a;
    --border-ghost: rgba(255, 255, 255, 0.04);
    --radius-lg: 16px;
    --radius-sm: 8px;
    --shadow-soft: 0 14px 35px rgba(0, 0, 0, 0.45);
    --shadow-strong: 0 18px 40px rgba(0, 0, 0, 0.7);
    --surface-1: #0a0b11;
    --surface-2: #0f1118;
    --surface-3: #10131c;
    --nav-bg: rgba(15, 17, 24, 0.92);
    --overlay-strong: rgba(0, 0, 0, 0.62);
    --danger-border: rgba(255, 93, 93, 0.8);
    --danger-border-strong: rgba(255, 93, 93, 1);
    --danger-bg: rgba(255, 93, 93, 0.12);
    --danger-text: #ff9b9b;
    --keyword-bg: rgba(100, 116, 255, 0.12);
    --keyword-border: rgba(100, 116, 255, 0.4);
    --group-bg-strong: rgba(10, 11, 17, 0.55);
    --group-bg-soft: rgba(10, 11, 17, 0.35);
    --shopping-highlight-bg: rgba(255, 127, 77, 0.25);
    --fullscreen-bg: #ffffff;
    --fullscreen-bg-card: #f7f7f7;
    --fullscreen-surface-1: #ffffff;
    --fullscreen-surface-2: #ffffff;
    --fullscreen-surface-3: #ffffff;
    --fullscreen-border-soft: #c9c9c9;
    --fullscreen-text: #111111;
    --fullscreen-text-muted: #4a4a4a;
    --fullscreen-accent: #b57200;
    --fullscreen-accent-soft: rgba(181, 114, 0, 0.18);
    --fullscreen-accent-border: rgba(181, 114, 0, 0.7);
    --fullscreen-accent-border-strong: rgba(181, 114, 0, 0.95);
    --fullscreen-accent-ring: rgba(181, 114, 0, 0.12);
    --fullscreen-accent-halo: rgba(181, 114, 0, 0.08);
    --fullscreen-accent-halo-strong: rgba(181, 114, 0, 0.12);
    --fullscreen-group-bg-strong: #f0f0f0;
    --fullscreen-group-bg-soft: #f5f5f5;
    --fullscreen-shopping-highlight: rgba(181, 114, 0, 0.3);
    --app-nav-height: 4.4rem;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background-color: var(--bg);
    color: var(--text);
}

body {
    min-height: 100vh;
}

.page-header {
    padding: 0.5rem 1rem;
    max-width: 960px;
    margin: 0 auto;
}

.top-link {
    display: inline-flex;
    align-items: center;
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    border: 1px solid var(--border-soft);
    text-decoration: none;
    color: var(--text);
    font-size: 0.85rem;
    background: var(--surface-1);
}

.top-link:hover {
    border-color: var(--accent-border);
    color: var(--accent);
}

#app {
    max-width: 960px;
    margin: 0 auto 2rem;
    padding: 0 1rem 2rem;
}

.app-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 50;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.25rem;
    padding: 0.5rem 0.75rem max(env(safe-area-inset-bottom), 0.6rem);
    background: var(--nav-bg);
    border-top: 1px solid var(--border-soft);
    backdrop-filter: blur(16px);
}

.app-nav-link {
    display: grid;
    justify-items: center;
    gap: 0.2rem;
    padding: 0.35rem 0.2rem;
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.7rem;
    transition: color 0.15s ease-out, background-color 0.15s ease-out;
}

.app-nav-link i {
    font-size: 1.1rem;
}

.app-nav-link:hover {
    color: var(--text);
    background: var(--accent-halo-strong);
}

body {
    padding-bottom: 4.4rem;
}

.theme-indicator {
    position: fixed;
    top: 0.6rem;
    left: 0.6rem;
    z-index: 60;
    padding: 0.35rem 0.6rem;
    border-radius: 999px;
    border: 1px solid var(--border-soft);
    background: var(--surface-1);
    color: var(--text-muted);
    font-size: 0.7rem;
    letter-spacing: 0.02em;
}

body.detail-fullscreen .app-nav,
body.shopping-fullscreen .app-nav {
    display: none;
}

body.keyboard-open .app-nav {
    display: none;
}

body.detail-fullscreen .pwa-install,
body.shopping-fullscreen .pwa-install,
body.keyboard-open .pwa-install {
    display: none;
}

.pwa-install {
    position: fixed;
    right: 1rem;
    bottom: calc(var(--app-nav-height) + 0.75rem);
    z-index: 55;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.55rem 0.9rem;
    border-radius: 999px;
    border: 1px solid var(--accent-border);
    background: var(--accent-soft);
    color: var(--text);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--shadow-soft);
}

.pwa-install:hover {
    border-color: var(--accent-border-strong);
    background: var(--accent-halo-strong);
}

.pwa-install i {
    font-size: 1rem;
}

.pwa-install[hidden],
.pwa-install-status[hidden] {
    display: none !important;
}

.pwa-install:disabled {
    opacity: 0.7;
    cursor: wait;
}

.pwa-install-status {
    position: fixed;
    right: 1rem;
    bottom: calc(var(--app-nav-height) + 3.6rem);
    z-index: 55;
    padding: 0.45rem 0.75rem;
    border-radius: 12px;
    border: 1px solid var(--border-soft);
    background: var(--surface-2);
    color: var(--text-muted);
    font-size: 0.75rem;
    box-shadow: var(--shadow-soft);
}

@media (min-width: 900px) {
    .app-nav {
        left: 50%;
        right: auto;
        transform: translateX(-50%);
        max-width: 520px;
        border-radius: 16px 16px 0 0;
    }
}

.badge-list {
    list-style: none;
    padding: 0;
    margin: 0.25rem 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.5rem;
    border-radius: 999px;
    font-size: 0.7rem;
    line-height: 1.2;
    border: 1px solid transparent;
}

.badge-category {
    background-color: var(--accent-soft);
    border-color: var(--accent-border);
    color: var(--accent);
}

.badge-keyword {
    background-color: var(--keyword-bg);
    border-color: var(--keyword-border);
    color: var(--text-keyword);
}

body.detail-fullscreen .badge-keyword {
    color: var(--text-keyword-strong);
}

.modal[hidden] {
    display: none;
}

.modal {
    position: fixed;
    inset: 0;
    background: var(--overlay-strong);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    z-index: 1000;
}

.modal-content {
    width: min(520px, 100%);
    background: var(--bg-card);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    padding: 1rem;
}

.modal-content h2 {
    margin: 0 0 0.9rem;
}

.modal-row {
    display: grid;
    gap: 0.35rem;
    margin-bottom: 0.75rem;
}

.modal-row label {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.modal-row select,
.modal-row input[type="text"] {
    padding: 0.55rem 0.6rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-soft);
    background: var(--surface-1);
    color: var(--text);
    outline: none;
}

.modal-row select:focus,
.modal-row input[type="text"]:focus {
    border-color: var(--accent-border);
    box-shadow: 0 0 0 3px var(--accent-ring);
}

.modal-row input[type="date"] {
    padding: 0.55rem 0.6rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-soft);
    background: var(--surface-1);
    color: var(--text);
    outline: none;
}

.modal-row input[type="date"]:focus {
    border-color: var(--accent-border);
    box-shadow: 0 0 0 3px var(--accent-ring);
}

.modal-actions {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
    margin-top: 0.5rem;
}