/* ═══════════════════════════════════════════════
   SPOTIFY GUARD v2 — Design System
   ═══════════════════════════════════════════════ */

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

:root {
    --bg-primary: #0a0b0f;
    --bg-secondary: #12131a;
    --bg-card: #161822;
    --bg-card-hover: #1c1e2e;
    --border: #1e2035;
    --border-focus: #2d3055;
    --text-primary: #e4e5eb;
    --text-secondary: #8b8da0;
    --text-muted: #565870;
    --green: #22c55e;
    --green-dim: #16a34a;
    --green-bg: rgba(34,197,94,0.08);
    --red: #ef4444;
    --red-dim: #dc2626;
    --red-bg: rgba(239,68,68,0.08);
    --yellow: #eab308;
    --yellow-bg: rgba(234,179,8,0.08);
    --blue: #3b82f6;
    --blue-bg: rgba(59,130,246,0.08);
    --purple: #a855f7;
    --accent: #6366f1;
    --accent-dim: #4f46e5;
    --font-body: 'Outfit', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 2px 12px rgba(0,0,0,0.4);
    --sidebar-w: 220px;
    --sidebar-collapsed-w: 56px;
    --header-h: 52px;
}

[data-theme="light"] {
    --bg-primary: #f0f2f5;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-card-hover: #f5f6fa;
    --border: #e0e2ea;
    --border-focus: #c5c8d6;
    --text-primary: #1a1c24;
    --text-secondary: #5a5d72;
    --text-muted: #8b8ea3;
    --green: #16a34a;
    --green-dim: #15803d;
    --green-bg: rgba(22,163,74,0.08);
    --red: #dc2626;
    --red-dim: #b91c1c;
    --red-bg: rgba(220,38,38,0.08);
    --yellow: #ca8a04;
    --yellow-bg: rgba(202,138,4,0.08);
    --blue: #2563eb;
    --blue-bg: rgba(37,99,235,0.08);
    --purple: #9333ea;
    --accent: #4f46e5;
    --accent-dim: #4338ca;
    --shadow: 0 2px 12px rgba(0,0,0,0.08);
}

html { font-size: 15px; }
body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
            radial-gradient(ellipse at 20% 0%, rgba(99,102,241,0.04) 0%, transparent 60%),
            radial-gradient(ellipse at 80% 100%, rgba(168,85,247,0.03) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}
[data-theme="light"] body::before { display: none; }

/* ═══════════════════════════════════════════════
   LAYOUT SHELL
   ═══════════════════════════════════════════════ */

.app {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* ── Header ── */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.2rem;
    height: var(--header-h);
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
    position: sticky;
    top: 0;
    z-index: 200;
    flex-shrink: 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.logo-icon {
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, var(--accent), var(--purple));
    border-radius: 7px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.logo-text {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo-text span {
    color: var(--text-muted);
    font-weight: 400;
    font-size: 0.78rem;
    margin-left: 0.3rem;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.header-status {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--green);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Hamburger (mobile) */
.sidebar-toggle {
    display: none;
    width: 34px;
    height: 34px;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.15s;
}
.sidebar-toggle:hover { background: var(--bg-card); color: var(--text-primary); }
.sidebar-toggle svg { display: block; }

/* ── Body (sidebar + content) ── */
.app-body {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* ═══════════════════════════════════════════════
   SIDEBAR
   ═══════════════════════════════════════════════ */

.sidebar {
    width: var(--sidebar-w);
    flex-shrink: 0;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
    transition: width 0.2s ease, transform 0.2s ease;
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border-focus); border-radius: 2px; }

/* Nav groups */
.nav-group {
    padding: 1.2rem 0.75rem 0.5rem;
}

.nav-group-label {
    font-size: 0.62rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    padding: 0 0.4rem;
    margin-bottom: 0.3rem;
    white-space: nowrap;
    overflow: hidden;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    width: 100%;
    padding: 0.55rem 0.75rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all 0.15s;
    white-space: nowrap;
    text-align: left;
}

.nav-btn svg {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    opacity: 0.7;
    transition: opacity 0.15s;
}

.nav-btn:hover {
    color: var(--text-primary);
    background: var(--bg-card);
}
.nav-btn:hover svg { opacity: 1; }

.nav-btn.active {
    color: var(--text-primary);
    background: rgba(99,102,241,0.12);
    font-weight: 600;
}
.nav-btn.active svg { opacity: 1; color: var(--accent); }

/* Sidebar divider */
.nav-divider {
    height: 1px;
    background: var(--border);
    margin: 0.5rem 0.75rem;
}

/* Sidebar footer */
.sidebar-footer {
    margin-top: auto;
    padding: 0.75rem;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ═══════════════════════════════════════════════
   MAIN CONTENT
   ═══════════════════════════════════════════════ */

.content-area {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

.main {
    padding: 1.5rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.section { display: none; }
.section.active { display: block; }

/* ═══════════════════════════════════════════════
   LAYOUT UTILITIES (reemplaza inline styles)
   ═══════════════════════════════════════════════ */

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
}

.grid-1-2 {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 1rem;
}

.grid-auto {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flex-center {
    display: flex;
    align-items: center;
}

.flex-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.mb-sm { margin-bottom: 0.6rem; }
.mb-md { margin-bottom: 1rem; }
.mb-lg { margin-bottom: 1.5rem; }
.mt-md { margin-top: 1rem; }
.mt-lg { margin-top: 1.5rem; }

/* ═══════════════════════════════════════════════
   STAT CARDS
   ═══════════════════════════════════════════════ */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 3px solid var(--border);
    border-radius: var(--radius);
    padding: 1.1rem 1.2rem;
    transition: border-color 0.2s, box-shadow 0.2s;
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    border-color: var(--border-focus);
    border-left-color: var(--sc-accent, var(--border-focus));
    box-shadow: 0 4px 16px rgba(0,0,0,0.18);
}

/* Color variants — borde izquierdo */
.stat-card--green  { --sc-accent: var(--green);  border-left-color: var(--green); }
.stat-card--blue   { --sc-accent: var(--blue);   border-left-color: var(--blue); }
.stat-card--yellow { --sc-accent: var(--yellow); border-left-color: var(--yellow); }
.stat-card--red    { --sc-accent: var(--red);    border-left-color: var(--red); }
.stat-card--accent { --sc-accent: var(--accent); border-left-color: var(--accent); }
.stat-card--purple { --sc-accent: var(--purple); border-left-color: var(--purple); }

/* Ícono en esquina superior derecha */
.stat-card-icon {
    position: absolute;
    top: 0.9rem;
    right: 1rem;
    color: var(--sc-accent, var(--text-muted));
    opacity: 0.18;
    pointer-events: none;
    transition: opacity 0.2s;
}
.stat-card:hover .stat-card-icon { opacity: 0.28; }
.stat-card-icon svg { display: block; }

.stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    font-family: var(--font-mono);
    letter-spacing: -0.03em;
    line-height: 1;
}

.stat-value.green  { color: var(--green); }
.stat-value.red    { color: var(--red); }
.stat-value.yellow { color: var(--yellow); }
.stat-value.blue   { color: var(--blue); }

/* Footer: sub-text + trend chip en la misma línea */
.stat-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.3rem;
    min-height: 1.2rem;
    gap: 0.4rem;
}

.stat-sub {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Trend chip */
.stat-trend {
    display: inline-flex;
    align-items: center;
    gap: 0.15rem;
    font-size: 0.62rem;
    font-family: var(--font-mono);
    font-weight: 700;
    padding: 0.1rem 0.45rem;
    border-radius: 20px;
    white-space: nowrap;
    flex-shrink: 0;
    opacity: 0;
    transition: opacity 0.3s;
}
.stat-trend.visible { opacity: 1; }
.stat-trend.up      { background: var(--green-bg);  color: var(--green); }
.stat-trend.down    { background: var(--red-bg);    color: var(--red); }
.stat-trend.neutral { background: rgba(86,88,112,0.1); color: var(--text-muted); }

/* ═══════════════════════════════════════════════
   TABLES
   ═══════════════════════════════════════════════ */

.table-wrap {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.table-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1.2rem;
    border-bottom: 1px solid var(--border);
}

.table-title {
    font-size: 0.9rem;
    font-weight: 600;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    text-align: left;
    padding: 0.65rem 1.2rem;
    font-size: 0.68rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.09em;
    font-weight: 700;
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
    white-space: nowrap;
}

td {
    padding: 0.7rem 1.2rem;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg-card-hover); }

/* Numeric columns */
td.num {
    font-family: var(--font-mono);
    text-align: right;
}
th.num { text-align: right; }

/* ═══════════════════════════════════════════════
   BADGES
   ═══════════════════════════════════════════════ */

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.55rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    font-family: var(--font-mono);
    white-space: nowrap;
}

.badge-green  { background: var(--green-bg);  color: var(--green);  border: 1px solid rgba(34,197,94,0.2); }
.badge-red    { background: var(--red-bg);    color: var(--red);    border: 1px solid rgba(239,68,68,0.2); }
.badge-yellow { background: var(--yellow-bg); color: var(--yellow); border: 1px solid rgba(234,179,8,0.2); }
.badge-blue   { background: var(--blue-bg);   color: var(--blue);   border: 1px solid rgba(59,130,246,0.2); }
.badge-gray   { background: rgba(86,88,112,0.1); color: var(--text-muted); border: 1px solid rgba(86,88,112,0.2); }

/* ═══════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 0.9rem;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
    white-space: nowrap;
}

.btn:hover { background: var(--bg-card-hover); border-color: var(--border-focus); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; pointer-events: none; }

.btn-accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dim); border-color: var(--accent-dim); }

.btn-sm { padding: 0.3rem 0.65rem; font-size: 0.75rem; }

.btn-group {
    display: flex;
    gap: 0.35rem;
    flex-wrap: wrap;
}

/* Period buttons */
.stats-period-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.home-interval-btn.active { background: var(--bg-card-hover); border-color: var(--border-focus); color: var(--text-primary); }

/* ═══════════════════════════════════════════════
   FORMS & INPUTS
   ═══════════════════════════════════════════════ */

.input-group {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.input {
    flex: 1;
    padding: 0.55rem 0.9rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.85rem;
    outline: none;
    transition: border-color 0.15s;
}

.input:focus { border-color: var(--accent); }
.input::placeholder { color: var(--text-muted); }
.input[type="date"] { cursor: pointer; }

.input-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-secondary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin-bottom: 0.35rem;
}

.input-hint {
    font-size: 0.72rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-top: 0.25rem;
}

/* Filter bar */
.filter-bar {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
    align-items: flex-end;
    margin-bottom: 1rem;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.filter-field {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

/* ═══════════════════════════════════════════════
   SECTION HEADERS
   ═══════════════════════════════════════════════ */

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.2rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.section-title {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

/* ═══════════════════════════════════════════════
   CARDS
   ═══════════════════════════════════════════════ */

.artist-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.artist-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.1rem 1.2rem;
    cursor: pointer;
    transition: all 0.2s;
}

.artist-card:hover { border-color: var(--accent); transform: translateY(-1px); }

.artist-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.8rem;
}

.artist-name {
    font-size: 1rem;
    font-weight: 600;
}

.artist-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.8rem;
}

.artist-stat-label {
    font-size: 0.62rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    font-weight: 700;
}

.artist-stat-val {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.95rem;
    margin-top: 0.15rem;
}

/* KW cards */
.kw-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.1rem;
    margin-bottom: 0.6rem;
    transition: border-color 0.15s;
}
.kw-card:hover { border-color: var(--border-focus); }

.kw-name {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.4rem;
}

.kw-meta {
    display: flex;
    gap: 1.2rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    flex-wrap: wrap;
}

/* Search items */
.search-results { display: grid; gap: 0.4rem; }

.search-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: border-color 0.15s;
}

.search-item:hover { border-color: var(--border-focus); }
.search-item-name { font-weight: 500; font-size: 0.85rem; }
.search-item-meta { font-size: 0.72rem; color: var(--text-secondary); font-family: var(--font-mono); }

/* ═══════════════════════════════════════════════
   LOADING / EMPTY STATES
   ═══════════════════════════════════════════════ */

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    gap: 0.6rem;
}

.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    flex-shrink: 0;
}

@keyframes spin { to { transform: rotate(360deg); } }

.empty {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ═══════════════════════════════════════════════
   MODALS
   ═══════════════════════════════════════════════ */

.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.65);
    backdrop-filter: blur(4px);
    z-index: 300;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal-overlay.open { display: flex; }

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: 100%;
    max-width: 480px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.55);
    animation: modalIn 0.18s ease-out;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

@keyframes modalIn {
    from { opacity: 0; transform: translateY(14px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1.2rem;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.modal-title { font-size: 0.95rem; font-weight: 600; }

.modal-body {
    padding: 1.2rem;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    padding: 0.9rem 1.2rem;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

/* ═══════════════════════════════════════════════
   THEME TOGGLE
   ═══════════════════════════════════════════════ */

.theme-toggle {
    width: 32px;
    height: 32px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    transition: all 0.15s;
    color: var(--text-secondary);
    flex-shrink: 0;
}
.theme-toggle:hover {
    border-color: var(--border-focus);
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

/* ═══════════════════════════════════════════════
   MESSAGES
   ═══════════════════════════════════════════════ */

.msg-success { color: var(--green); font-size: 0.8rem; margin-top: 0.5rem; }
.msg-error   { color: var(--red);   font-size: 0.8rem; margin-top: 0.5rem; }

/* ═══════════════════════════════════════════════
   SCROLLBAR
   ═══════════════════════════════════════════════ */

::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-focus); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ═══════════════════════════════════════════════
   MOBILE OVERLAY (sidebar)
   ═══════════════════════════════════════════════ */

.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 150;
}
.sidebar-backdrop.open { display: block; }

/* ═══════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════ */

@media (max-width: 900px) {
    .sidebar-toggle { display: flex; }

    .sidebar {
        position: fixed;
        top: var(--header-h);
        left: 0;
        bottom: 0;
        z-index: 160;
        transform: translateX(-100%);
        box-shadow: 4px 0 24px rgba(0,0,0,0.3);
    }

    .sidebar.open { transform: translateX(0); }

    .main { padding: 1rem; }

    .grid-2, .grid-1-2 { grid-template-columns: 1fr; }
    .artist-grid { grid-template-columns: 1fr; }
    .input-group { flex-direction: column; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .filter-bar { padding: 0.75rem; }
}