:root {
    color-scheme: light dark;

    --bg: #fafafa;
    --surface: #ffffff;
    --fg: #18181b;
    --muted: #71717a;
    --border: #e4e4e7;
    --border-strong: #d4d4d8;
    --accent: #4f46e5;
    --accent-2: #9333ea;
    --accent-fg: #ffffff;
    --accent-tint: #eef2ff;
    --accent-gradient: linear-gradient(135deg, var(--accent), var(--accent-2));
    --danger: #dc2626;
    --danger-tint: #fef2f2;
    --success: #16a34a;
    --success-tint: #f0fdf4;
    --warning: #ea580c;
    --warning-tint: #fff7ed;

    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 2px rgba(24, 24, 27, 0.05);
    --shadow: 0 1px 3px rgba(24, 24, 27, 0.06), 0 6px 20px rgba(24, 24, 27, 0.05);
    --shadow-hover: 0 4px 10px rgba(24, 24, 27, 0.08), 0 12px 28px rgba(24, 24, 27, 0.08);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0c0c0e;
        --surface: #17171a;
        --fg: #f4f4f5;
        --muted: #a1a1aa;
        --border: #2a2a2e;
        --border-strong: #38383e;
        --accent: #818cf8;
        --accent-2: #c084fc;
        --accent-fg: #0c0c0e;
        --accent-tint: #1e1e35;
        --danger: #f87171;
        --danger-tint: #2a1616;
        --success: #4ade80;
        --success-tint: #132414;
        --warning: #fb923c;
        --warning-tint: #2a1a0e;
        --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
        --shadow: 0 1px 3px rgba(0, 0, 0, 0.4), 0 6px 20px rgba(0, 0, 0, 0.35);
        --shadow-hover: 0 4px 10px rgba(0, 0, 0, 0.4), 0 12px 28px rgba(0, 0, 0, 0.4);
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background:
        radial-gradient(1100px 500px at 12% -10%, color-mix(in srgb, var(--accent) 16%, transparent), transparent),
        radial-gradient(900px 480px at 100% 0%, color-mix(in srgb, var(--accent-2) 14%, transparent), transparent),
        var(--bg);
    background-attachment: fixed;
    color: var(--fg);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0 0 0.5rem;
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.1rem; }

p { margin: 0 0 1rem; color: var(--fg); }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
    max-width: 1040px;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
}

/* Navigation */

.main-nav {
    background: var(--accent-gradient);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 10;
}

.main-nav-inner {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 0 1.5rem;
    height: 60px;
    max-width: 1040px;
    margin: 0 auto;
    overflow-x: auto;
    scrollbar-width: none;
}

.main-nav-inner::-webkit-scrollbar { display: none; }

.main-nav .brand,
.main-nav .logout-form,
.main-nav a:not(.brand) {
    flex-shrink: 0;
}

.main-nav .brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.05rem;
    margin-right: 0.5rem;
    text-decoration: none;
    color: #ffffff;
}

.main-nav .brand svg { color: #ffffff; }

.main-nav a:not(.brand) {
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    padding: 0.4rem 0;
    border-bottom: 2px solid transparent;
    transition: color 0.15s ease, border-color 0.15s ease;
}

.main-nav a:not(.brand):hover {
    color: #ffffff;
}

.main-nav a.active {
    color: #ffffff;
    border-bottom-color: #ffffff;
}

.main-nav .logout-form {
    margin-left: auto;
}

.link-button {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.78);
    cursor: pointer;
    font: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0;
}

.link-button:hover { color: #ffffff; }

/* Login */

.login-box {
    max-width: 360px;
    margin: 10vh auto;
    padding: 2.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    text-align: center;
}

.login-box .login-icon {
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.login-box h1 {
    font-size: 1.4rem;
    margin-bottom: 0.25rem;
}

.login-box .subtitle {
    color: var(--muted);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.login-box form {
    text-align: left;
}

.login-box button[type="submit"] {
    width: 100%;
    margin-top: 0.5rem;
}

/* Forms */

form label {
    display: block;
    margin-bottom: 1.1rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--fg);
}

input, textarea, select {
    width: 100%;
    padding: 0.6rem 0.75rem;
    margin-top: 0.35rem;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--fg);
    font-size: 0.95rem;
    font-family: inherit;
    font-weight: 400;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-tint);
}

textarea { resize: vertical; }

/* Buttons */

button, .button, .button-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 1.1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--accent);
    background: var(--accent);
    color: var(--accent-fg);
    cursor: pointer;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    font-family: inherit;
    transition: transform 0.1s ease, box-shadow 0.15s ease, background 0.15s ease, opacity 0.15s ease;
}

button:hover, .button:hover {
    opacity: 0.9;
    text-decoration: none;
}

button:active, .button:active { transform: scale(0.98); }

.button-secondary {
    background: var(--surface);
    color: var(--fg);
    border-color: var(--border-strong);
}

.button-secondary:hover {
    background: var(--accent-tint);
    border-color: var(--accent);
    opacity: 1;
}

button.danger {
    background: var(--surface);
    color: var(--danger);
    border-color: var(--border-strong);
}

button.danger:hover {
    background: var(--danger-tint);
    border-color: var(--danger);
    opacity: 1;
}

.error, .success {
    padding: 0.6rem 0.9rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}

.error {
    color: var(--danger);
    background: var(--danger-tint);
}

.success {
    color: var(--success);
    background: var(--success-tint);
}

/* Links overview */

.links-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    gap: 1rem;
    flex-wrap: wrap;
}

.links-header > div {
    display: flex;
    gap: 0.6rem;
}

.quick-add-form {
    display: flex;
    gap: 0.6rem;
    margin-bottom: 1.25rem;
}

.quick-add-form input {
    flex: 1;
    margin-top: 0;
}

.filter-bar {
    display: flex;
    gap: 0.6rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-bar input, .filter-bar select {
    width: auto;
    margin-top: 0;
}

.filter-bar input[type="search"] {
    flex: 1;
    min-width: 180px;
}

.link-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.25rem;
}

.link-card {
    display: block;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    text-decoration: none;
    color: var(--fg);
    background: var(--surface);
    box-shadow: var(--shadow-sm);
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.link-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    border-color: var(--border-strong);
    text-decoration: none;
}

.link-card-image {
    height: 130px;
    background-size: cover;
    background-position: center;
    background-color: var(--border);
}

.link-card-body {
    padding: 1rem;
}

.link-card-body h2 {
    margin: 0 0 0.35rem;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.link-domain {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--muted);
    font-size: 0.82rem;
    margin: 0 0 0.75rem;
}

.link-domain img {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    flex-shrink: 0;
}

/* Badges */

.badge {
    display: inline-block;
    padding: 0.2rem 0.65rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
    margin: 0 0.35rem 0.35rem 0;
}

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

.badge-tag {
    background: var(--bg);
    color: var(--muted);
    border: 1px solid var(--border);
}

.badge-read {
    background: var(--success-tint);
    color: var(--success);
}

.badge-unread {
    background: var(--warning-tint);
    color: var(--warning);
}

/* Ideas */

.idea-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.idea-card {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1.5rem;
    flex-wrap: wrap;
    padding: 1.25rem 1.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.idea-card-body { flex: 1; min-width: 220px; }

.idea-description {
    color: var(--muted);
    font-size: 0.9rem;
    margin: 0 0 0.6rem;
    white-space: pre-wrap;
}

.idea-card-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    flex-shrink: 0;
}

/* Link detail */

.link-detail {
    max-width: 640px;
}

.link-detail-image {
    width: 100%;
    max-height: 320px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
    border: 1px solid var(--border);
}

.notes {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    margin: 1rem 0;
}

.notes strong {
    font-size: 0.85rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.link-actions {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.inline-form {
    display: inline-flex;
    gap: 0.35rem;
    align-items: center;
    margin: 0;
}

/* Tables */

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.data-table th, .data-table td {
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 1rem;
    text-align: left;
}

.data-table th {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
    font-weight: 600;
    background: var(--bg);
}

.data-table tr:last-child td { border-bottom: none; }

.data-table input[type="text"] {
    margin-top: 0;
}

/* Empty state */

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    color: var(--muted);
    text-align: center;
    padding: 5rem 1rem;
}

.empty-state svg { color: var(--border-strong); }

.hint {
    color: var(--muted);
    font-size: 0.88rem;
}

/* Cheatsheet */

.cheatsheet-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.75rem;
}

.cheatsheet-header p { margin: 0; }

#cs-filter {
    width: 240px;
    max-width: 60vw;
    margin-top: 0;
}

.cs-translate {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem 1.75rem;
    margin-bottom: 2rem;
}

.cs-translate h2 {
    font-size: 1.05rem;
    margin: 0 0 1rem;
}

.cs-translate-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 0.4rem 1rem;
    align-items: center;
}

.cs-translate-row { display: contents; }

.cs-translate-row .from {
    color: var(--muted);
    font-size: 0.9rem;
    text-align: right;
}

.cs-translate-row .to {
    font-size: 0.9rem;
    font-weight: 600;
}

.cs-translate-row .arrow {
    color: var(--border-strong);
    font-size: 0.85rem;
}

.cs-translate-row:not(:last-child) .from,
.cs-translate-row:not(:last-child) .to,
.cs-translate-row:not(:last-child) .arrow {
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.cs-group { margin-bottom: 1.75rem; }

.cs-group-head {
    display: flex;
    align-items: baseline;
    gap: 0.6rem;
    margin-bottom: 0.6rem;
}

.cs-group-head h2 {
    font-size: 1rem;
    margin: 0;
}

.cs-subhead {
    font-weight: 500;
    color: var(--muted);
    font-size: 0.85rem;
}

.cs-count {
    font-size: 0.75rem;
    color: var(--muted);
    font-variant-numeric: tabular-nums;
}

.cs-rows {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.cs-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 0.8rem 1.25rem;
}

.cs-row + .cs-row { border-top: 1px solid var(--border); }

.cs-row.hidden { display: none; }

.cs-label { font-size: 0.92rem; }

.cs-label .note {
    display: block;
    color: var(--muted);
    font-size: 0.8rem;
    margin-top: 0.15rem;
}

.cs-combo {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    flex-shrink: 0;
}

.cs-combo .sep {
    color: var(--muted);
    font-size: 0.75rem;
    margin: 0 0.15rem;
}

.cs-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    font-size: 0.82rem;
    color: var(--muted);
}

.cs-legend span {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

kbd {
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--fg);
    background: var(--bg);
    border: 1px solid var(--border-strong);
    border-radius: 6px;
    padding: 0.3rem 0.55rem;
    min-width: 1.6rem;
    text-align: center;
    box-shadow: 0 1px 0 var(--border-strong);
}

@media (max-width: 560px) {
    .cs-row { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}

.cs-own {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.cs-add-form {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
    margin-bottom: 1.75rem;
}

.cs-add-form input {
    margin-top: 0;
    flex: 1;
    min-width: 160px;
}

.cs-add-form input[name="category"] {
    flex: 0 1 180px;
}

.cs-add-command {
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
}

kbd.cmd {
    min-width: auto;
    white-space: normal;
    word-break: break-word;
    text-align: left;
}

.cs-own-action {
    font-size: 0.78rem;
    padding: 0.3rem 0.65rem;
}

.copy-btn.copied {
    background: var(--success-tint);
    color: var(--success);
    border-color: var(--success);
}

@media (max-width: 560px) {
    .cs-combo { flex-wrap: wrap; }
}

/* Dashboard */

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.25rem;
    margin: 1.75rem 0 2rem;
}

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
    padding: 1.5rem 1.5rem 1.25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    text-decoration: none;
    color: var(--fg);
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    border-color: var(--border-strong);
    text-decoration: none;
}

.stat-number {
    font-size: 2.25rem;
    font-weight: 750;
    letter-spacing: -0.03em;
    font-variant-numeric: tabular-nums;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--muted);
    font-weight: 600;
}

.dashboard-actions {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.recent-heading {
    margin: 2.5rem 0 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    font-size: 1.05rem;
}

/* Search */

.group {
    margin-bottom: 2rem;
}

.group .links-header {
    margin-bottom: 0.75rem;
}

.group h2 {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
}

/* Nav search */

.nav-search {
    flex: 1;
    min-width: 120px;
    max-width: 220px;
    margin: 0 0.25rem;
}

.nav-search input {
    width: 100%;
    margin-top: 0;
    padding: 0.4rem 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.35);
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    font-size: 0.85rem;
    border-radius: 999px;
}

.nav-search input::placeholder {
    color: rgba(255, 255, 255, 0.75);
}

.nav-search input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.25);
    border-color: #ffffff;
    box-shadow: none;
}