:root {
    --bg: #0f172a;
    --bg-accent: #1e293b;
    --card: #ffffff;
    --text: #0f172a;
    --muted: #64748b;
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --accent: #22d3ee;
    --danger: #dc2626;
    --radius: 16px;
}

* { box-sizing: border-box; }

html, body { margin: 0; min-height: 100%; }

body {
    font-family: 'Itim', system-ui, sans-serif;
    color: #f8fafc;
    background: radial-gradient(circle at top, var(--bg-accent), var(--bg) 60%) fixed;
}

#app {
    max-width: 1000px;
    margin: 0 auto;
    padding: 32px 20px 64px;
}

.hero { text-align: center; margin-bottom: 28px; }

.hero h1 {
    margin: 0;
    font-size: clamp(2.4rem, 8vw, 4.5rem);
    background: linear-gradient(90deg, var(--accent), var(--primary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.subtitle { color: #94a3b8; margin: 8px 0 0; font-size: 1.1rem; }

h2 { margin: 36px 0 12px; font-size: 1.5rem; color: #e2e8f0; }

.card {
    background: var(--card);
    color: var(--text);
    border-radius: var(--radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.form {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: flex-end;
    justify-content: center;
    padding: 24px;
}

.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 0.95rem; color: var(--muted); }
.optional { font-size: 0.8rem; opacity: 0.8; }

input[type="date"], input[type="time"] {
    font: inherit;
    padding: 10px 12px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    color: var(--text);
    background: #f8fafc;
}

input:focus-visible, .btn:focus-visible, .tile:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
}

.btn {
    font: inherit;
    font-size: 1.1rem;
    padding: 11px 26px;
    border: none;
    border-radius: 10px;
    color: #fff;
    background: var(--primary);
    cursor: pointer;
    transition: background 0.15s, transform 0.1s;
}
.btn:hover { background: var(--primary-dark); }
.btn:active { transform: scale(0.97); }

.error { width: 100%; margin: 0; text-align: center; color: var(--danger); }

.note { text-align: center; color: #94a3b8; margin: 20px 0 0; }

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 14px;
}

.tile {
    padding: 16px 18px;
    cursor: pointer;
    text-align: left;
    font: inherit;
    border: none;
    transition: transform 0.15s;
}
.tile:hover { transform: translateY(-3px); }

.tile-label { color: var(--muted); font-size: 0.95rem; }

.tile-value {
    margin-top: 4px;
    font-size: 1.5rem;
    font-weight: bold;
    font-variant-numeric: tabular-nums;
    overflow-wrap: anywhere;
}

.dec { color: #94a3b8; }

.sub {
    display: block;
    margin-top: 4px;
    font-size: 0.55em;
    font-weight: normal;
    color: var(--muted);
}

.bar {
    height: 10px;
    margin-top: 8px;
    border-radius: 5px;
    overflow: hidden;
    background: #e2e8f0;
}
.bar > div {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--primary));
}

.weeks-card {
    grid-column: 1 / -1;
    padding: 18px;
}
.weeks-summary { margin: 4px 0 12px; font-size: 1.3rem; font-weight: bold; }
.weeks-toggle { font-size: 0.95rem; padding: 7px 18px; margin-bottom: 12px; }
.weeks-grid {
    display: grid;
    grid-template-columns: repeat(52, 1fr);
    gap: 2px;
}
.week {
    display: block;
    aspect-ratio: 1;
    border: 1px solid #94a3b8;
    border-radius: 1px;
}
.week.full { background: var(--primary); border-color: var(--primary); }
.weeks-legend {
    display: flex;
    gap: 20px;
    margin-top: 12px;
    font-size: 0.9rem;
    color: var(--muted);
}
.weeks-legend .week { display: inline-block; width: 12px; vertical-align: middle; }

.focus {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(15, 23, 42, 0.92);
}
.focus[hidden], [hidden] { display: none !important; }

.focus-card {
    width: min(900px, 100%);
    padding: 40px 24px;
    text-align: center;
    background: var(--card);
    color: var(--text);
    border-radius: var(--radius);
}
.focus-label { color: var(--muted); font-size: 1.3rem; }
.focus-value {
    margin: 12px 0 28px;
    font-size: clamp(1.6rem, 6vw, 3.6rem);
    font-weight: bold;
    font-variant-numeric: tabular-nums;
    overflow-wrap: anywhere;
}