:root {
    --bg: #0f0f1a;
    --bg-card: #1a1a2e;
    --bg-card-hover: #22223a;
    --bg-inset: #12121f;
    --fg: #e8e8f0;
    --fg-muted: #8888a0;
    --accent: #4ade80;
    --gold: #fbbf24;
    --blue: #60a5fa;
    --bad: #f87171;
    --border: #2a2a42;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
[x-cloak] { display: none !important; }

html, body {
    background: var(--bg);
    color: var(--fg);
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'SF Pro Text', system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

#app {
    max-width: 680px;
    margin: 0 auto;
    min-height: 100vh;
}

.tab-content {
    padding: max(env(safe-area-inset-top), 20px) 16px
             max(env(safe-area-inset-bottom), 40px);
}

/* ---- header ---- */
.page-header { margin-bottom: 18px; position: relative; }
.page-header h1 {
    font-size: 30px;
    font-weight: 700;
    letter-spacing: -0.02em;
}
.subtitle { color: var(--fg-muted); font-size: 14px; margin-top: 4px; }
.logout-btn {
    position: absolute;
    top: 4px; right: 0;
    background: none;
    border: 1px solid var(--border);
    color: var(--fg-muted);
    font-size: 12px;
    padding: 6px 12px;
    border-radius: 8px;
    cursor: pointer;
}

/* ---- login ---- */
.login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.login-card {
    width: 100%;
    max-width: 340px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 36px 28px;
    text-align: center;
}
.login-mark {
    width: 64px; height: 64px;
    margin: 0 auto 16px;
    border-radius: 18px;
    background: var(--bg);
    color: var(--accent);
    font-size: 36px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}
.login-card h1 { font-size: 22px; margin-bottom: 22px; }
.login-card input {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--fg);
    font-size: 16px;
    padding: 13px 14px;
    margin-bottom: 12px;
    outline: none;
}
.login-card input:focus { border-color: var(--accent); }
.login-card button {
    width: 100%;
    background: var(--accent);
    color: #0f0f1a;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    padding: 13px;
    cursor: pointer;
}
.login-card button:disabled { opacity: 0.5; }
.login-error { color: var(--bad); font-size: 13px; margin-top: 10px; }
.login-note { color: var(--fg-muted); font-size: 12px; margin-top: 18px; }

/* ---- bust banner ---- */
.bust-banner {
    background: rgba(248, 113, 113, 0.12);
    border: 1px solid var(--bad);
    color: var(--bad);
    border-radius: 14px;
    padding: 12px 14px;
    font-size: 14px;
    margin-bottom: 14px;
}

/* ---- metrics ---- */
.metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 14px;
}
.metric {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 12px 14px;
}
.metric.hero { grid-column: 1 / -1; }
.metric-label {
    color: var(--fg-muted);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}
.metric-value {
    font-size: 18px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}
.metric.hero .metric-value { font-size: 28px; }
.metric-value.accent { color: var(--accent); }
.metric-value.gold { color: var(--gold); }

/* ---- cards ---- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 16px;
    margin-bottom: 14px;
}
.card h2 { font-size: 17px; font-weight: 700; }
.card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
}
.card-note { color: var(--fg-muted); font-size: 12px; margin: 6px 0 12px; }

/* ---- toggles ---- */
.period-toggle, .dir-toggle {
    display: inline-flex;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 3px;
    gap: 3px;
}
.period-toggle button, .dir-toggle button {
    background: none;
    border: none;
    color: var(--fg-muted);
    font-size: 13px;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 8px;
    cursor: pointer;
}
.period-toggle button.active, .dir-toggle button.active {
    background: var(--accent);
    color: #0f0f1a;
}
.dir-toggle button.active-bad {
    background: var(--bad);
    color: #0f0f1a;
}
.dir-toggle { width: 100%; }
.dir-toggle button { flex: 1; padding: 9px 6px; }

/* ---- legend + chart ---- */
.legend {
    display: flex;
    gap: 14px;
    margin: 10px 0 6px;
    font-size: 12px;
    color: var(--fg-muted);
}
.legend span { display: inline-flex; align-items: center; gap: 5px; }
.dot { width: 9px; height: 9px; border-radius: 3px; display: inline-block; }
.dot-initial { background: var(--blue); }
.dot-contrib { background: var(--accent); }
.dot-interest { background: var(--gold); }

.chart-inner { height: 290px; position: relative; width: 100%; }

/* ---- range sliders ---- */
.slider-row { margin: 12px 0 2px; }
.slider-label {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    color: var(--fg-muted);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 2px;
}
.slider-label strong {
    color: var(--fg);
    font-size: 13px;
    font-variant-numeric: tabular-nums;
}
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 30px;
    background: transparent;
    margin: 0;
}
input[type="range"]::-webkit-slider-runnable-track {
    height: 6px;
    border-radius: 3px;
    background: var(--bg);
    border: 1px solid var(--border);
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--accent);
    border: none;
    margin-top: -9px;
}
input[type="range"]::-moz-range-track {
    height: 6px;
    border-radius: 3px;
    background: var(--bg);
    border: 1px solid var(--border);
}
input[type="range"]::-moz-range-thumb {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--accent);
    border: none;
}

/* ---- form fields ---- */
.field-grid, .phase-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.field { display: block; min-width: 0; }
.field > span:first-child {
    display: block;
    color: var(--fg-muted);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 5px;
}
.field input, .field select {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--fg);
    font-size: 16px;   /* 16px stops iOS zooming in on focus */
    padding: 10px 11px;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    font-variant-numeric: tabular-nums;
}
.field input:focus, .field select:focus { border-color: var(--accent); }
.field .pair {
    display: grid;
    grid-template-columns: 76px 1fr;
    gap: 6px;
}
.field select {
    background-image: linear-gradient(45deg, transparent 50%, var(--fg-muted) 50%),
                      linear-gradient(135deg, var(--fg-muted) 50%, transparent 50%);
    background-position: calc(100% - 16px) 55%, calc(100% - 11px) 55%;
    background-size: 5px 5px;
    background-repeat: no-repeat;
    padding-right: 26px;
}

/* number spinners off — they're unusable on touch anyway */
.field input::-webkit-outer-spin-button,
.field input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.field input[type=number] { -moz-appearance: textfield; appearance: textfield; }

/* ---- phase rows ---- */
.phase {
    position: relative;
    background: var(--bg-inset);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 12px;
    margin-bottom: 10px;
}
.row-del {
    position: absolute;
    top: -8px; right: -6px;
    width: 26px; height: 26px;
    border-radius: 50%;
    background: var(--bg-card-hover);
    border: 1px solid var(--border);
    color: var(--fg-muted);
    font-size: 12px;
    cursor: pointer;
    z-index: 2;
}
.row-del:active { background: var(--bad); color: #0f0f1a; }

.btn-add {
    width: 100%;
    background: none;
    border: 1px dashed var(--border);
    border-radius: 12px;
    color: var(--fg-muted);
    font-size: 14px;
    font-weight: 600;
    padding: 12px;
    cursor: pointer;
    margin-top: 2px;
}
.btn-add:active { background: var(--bg-card-hover); color: var(--fg); }

/* ---- data table ---- */
details summary {
    cursor: pointer;
    font-size: 15px;
    font-weight: 700;
    color: var(--fg);
    list-style: none;
}
details summary::-webkit-details-marker { display: none; }
details summary::after { content: ' ▸'; color: var(--fg-muted); }
details[open] summary::after { content: ' ▾'; }
.table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-top: 12px;
}
table { border-collapse: collapse; width: 100%; min-width: 520px; }
th, td {
    text-align: right;
    font-size: 12px;
    padding: 7px 9px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}
th {
    color: var(--fg-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-size: 10px;
}
th:first-child, td:first-child { text-align: left; }
details .btn-add { margin-top: 12px; }

.save-note {
    text-align: center;
    color: var(--fg-muted);
    font-size: 12px;
    margin-top: 4px;
}