/* taskframer-base.css v2-r2 — shared styles for all tool pages */

:root {
  --bg: #f5f5f7;
  --bg-alt: #ffffff;
  --text: #111111;
  --text-muted: #666666;
  --accent: #2563eb;
  --accent-soft: rgba(37, 99, 235, 0.07);
  --border: #dddddf;
  --shadow-soft: 0 8px 20px rgba(15, 23, 42, 0.04);
  --radius: 0;
  --max-width: 960px;
}

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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

/* ── Page wrapper ─────────────────────────────────────── */
.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Header ───────────────────────────────────────────── */
header {
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.9rem 1.1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.brand-mark {
  width: 24px;
  height: 24px;
  border: 2px solid var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--bg-alt);
  flex-shrink: 0;
}

.brand-title {
  font-weight: 700;
  font-size: 0.98rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.brand-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* nav-right: wraps support link */
.nav-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: right;
}

/* "Support this tool" link in header */
.support-header-link {
  border: none;
  background: none;
  color: var(--text-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 0;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 0.15em;
  white-space: nowrap;
}

.support-header-link:hover {
  color: var(--accent);
}

/* ── Mobile: hide support button inside iframe tool header ─ */
/* (support bar shows at bottom of modal instead)            */
@media (max-width: 640px) {
  .support-header-link { display: none; }
  .nav-right > span    { display: none; } /* hide "Frame XX" text */
  .brand-sub           { display: none; } /* hide tool name sub-line */
  .nav { padding: 0.65rem 0.75rem; }
}

/* ── Main ─────────────────────────────────────────────── */
main {
  flex: 1;
}

.shell {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.7rem 1.1rem 2.1rem;
}

/* ── Hero ─────────────────────────────────────────────── */
.hero {
  margin-bottom: 1.4rem;
}

.hero-eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.55rem;
}

.hero-title {
  font-size: 1.5rem;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.hero-title span {
  background: var(--accent-soft);
  padding: 0.08rem 0.25rem;
}

.hero-text {
  font-size: 0.9rem;
  max-width: 34rem;
  color: var(--text-muted);
  margin-bottom: 0.7rem;
}

.hero-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ── Two-column layout ────────────────────────────────── */
.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 1.3rem;
  align-items: flex-start;
}

@media (max-width: 840px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
}

/* ── Panel (card) ─────────────────────────────────────── */
.panel {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  padding: 1.1rem 1.1rem 1.3rem;
}

.panel-title {
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.7rem;
}

/* ── Form elements ────────────────────────────────────── */
.mode-toggle {
  display: inline-flex;
  border: 1px solid var(--border);
  margin-bottom: 0.9rem;
}

.mode-btn {
  font-size: 0.76rem;
  padding: 0.45rem 0.8rem;
  border: none;
  background: #f9fafb;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  cursor: pointer;
  border-right: 1px solid var(--border);
}

.mode-btn:last-child { border-right: none; }

.mode-btn.active {
  background: var(--accent);
  color: #ffffff;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.8rem;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}

@media (max-width: 600px) {
  .form-grid-2 { grid-template-columns: 1fr; }
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.label-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.4rem;
}

.label {
  font-size: 0.84rem;
}

.label-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.input-wrap {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.input-prefix, .input-suffix {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 0.35rem 0.45rem;
  border: 1px solid var(--border);
  background: #f9fafb;
  min-width: 1.8rem;
  text-align: center;
}

.input-suffix { min-width: 2.1rem; }

.input {
  flex: 1;
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--border);
  font-size: 0.88rem;
  background: #ffffff;
  border-radius: var(--radius);
  width: 100%;
}

.input:focus {
  outline: none;
  border-color: var(--accent);
}

.input-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

textarea.input {
  resize: vertical;
  min-height: 80px;
  line-height: 1.45;
}

.btn-row {
  margin-top: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.btn {
  font-size: 0.78rem;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--border);
  background: #f9fafb;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  cursor: pointer;
  border-radius: var(--radius);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.btn-primary:hover { filter: brightness(1.04); }

.btn-ghost {
  background: transparent;
  border-style: dashed;
  color: var(--text-muted);
}

.btn-secondary {
  background: transparent;
  border-color: var(--border);
  color: var(--text-muted);
}

/* ── Results ──────────────────────────────────────────── */
.results {
  margin-top: 1rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

@media (max-width: 600px) {
  .results { grid-template-columns: minmax(0, 1fr); }
}

.result-block {
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  background: #fcfcfc;
}

.result-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.15rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.result-value {
  font-size: 1rem;
  font-weight: 600;
}

.result-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

.error-msg {
  font-size: 0.8rem;
  color: #dc2626;
  margin-top: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ── Aside / info panel ───────────────────────────────── */
.side-block {
  font-size: 0.85rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.8rem;
  margin-bottom: 0.9rem;
}

.side-block:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.side-title {
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  color: var(--text-muted);
}

.side-list {
  list-style: none;
  padding-left: 0;
}

.side-list li {
  margin-bottom: 0.25rem;
}

.side-mono {
  font-family: ui-monospace, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── Footer ───────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
  font-size: 0.76rem;
  color: var(--text-muted);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.7rem 1.1rem 1rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.6rem;
}

/* ── Donation modal ───────────────────────────────────── */
.donation-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  z-index: 99999;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

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

.modal-card {
  max-width: 440px;
  width: 100%;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.18);
  padding: 1.5rem 1.4rem 1.4rem;
}

.modal-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.9rem;
}

.modal-title {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.modal-close-btn {
  border: none;
  background: transparent;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  cursor: pointer;
  padding: 0;
}

.modal-close-btn:hover { color: var(--accent); }

.modal-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.modal-breakdown {
  font-size: 0.8rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  background: #f9fafb;
  padding: 0.6rem 0.75rem;
  margin-bottom: 1rem;
}

.modal-breakdown ul {
  list-style: none;
  padding: 0;
  margin: 0.4rem 0 0;
}

.modal-breakdown li {
  margin-bottom: 0.2rem;
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.modal-note {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* ── Utility ──────────────────────────────────────────── */
.hidden { display: none !important; }

code {
  font-family: ui-monospace, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.82rem;
}


/* ── Donate modal interstitial ────────────────────────── */
.modal-card--donate {
  max-width: 400px;
  width: 92vw;
  padding: 1.25rem 1.4rem 1.5rem;
}

.donate-body {
  text-align: center;
  padding: 0.5rem 0 0;
}

.donate-icon {
  font-size: 2.8rem;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.donate-headline {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.donate-headline small {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-muted);
}

.donate-text {
  font-size: 0.83rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.donate-cta {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  margin-bottom: 0.6rem;
}

.donate-fine {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin: 0;
}
/* ── Dark mode (tool pages) ───────────────────────────── */
[data-theme="dark"] {
  --bg: #0f1117;
  --bg-alt: #1a1d27;
  --text: #e8eaf0;
  --text-muted: #8b92a5;
  --accent: #4d8ef7;
  --accent-soft: rgba(77, 142, 247, 0.10);
  --border: #2a2d3a;
}

[data-theme="dark"] body { background: var(--bg); color: var(--text); }
[data-theme="dark"] header { background: var(--bg-alt); }
[data-theme="dark"] .panel { background: var(--bg-alt); }
[data-theme="dark"] .input { background: #252836; color: var(--text); border-color: var(--border); }
[data-theme="dark"] select.input { background: #252836; color: var(--text); }
[data-theme="dark"] .btn-secondary { background: #252836; color: var(--text-muted); border-color: var(--border); }
[data-theme="dark"] .area-tab,
[data-theme="dark"] .uuc-tab,
[data-theme="dark"] .pres-tab,
[data-theme="dark"] .hw-tab,
[data-theme="dark"] .mpg-tab,
[data-theme="dark"] .rf-tab,
[data-theme="dark"] .lang-tab,
[data-theme="dark"] .wc-tab,
[data-theme="dark"] .pace-tab,
[data-theme="dark"] .ytd-tab,
[data-theme="dark"] .pitch-btn,
[data-theme="dark"] .speed-btn,
[data-theme="dark"] .race-btn,
[data-theme="dark"] .rf-band-btn,
[data-theme="dark"] .rp-preset { background: #252836; border-color: var(--border); color: var(--text-muted); }
[data-theme="dark"] .side-block { background: var(--bg-alt); }
[data-theme="dark"] .hero { background: var(--bg); }
[data-theme="dark"] footer { background: var(--bg-alt); }
[data-theme="dark"] .modal-card--donate { background: var(--bg-alt); }
[data-theme="dark"] .lang-output { background: #0d1117; }
[data-theme="dark"] .space-result { background: #0d1117; }