/* «مبالغ من» — ظاهر ساده و خوانا برای صفحهٔ کوچک آیفون */

:root {
  --bg: #f5f7f9;
  --bg-accent: #e8f1f0;
  --card: #ffffff;
  --text: #10202a;
  --muted: #63727d;
  --border: #e3e8ec;
  --accent: #0f766e;
  --accent-soft: #e6f4f2;
  --danger: #b42318;
  --shadow: 0 1px 2px rgba(16, 32, 42, 0.06), 0 8px 24px rgba(16, 32, 42, 0.05);
  --radius: 16px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c1418;
    --bg-accent: #10202a;
    --card: #141f26;
    --text: #eaf1f4;
    --muted: #9aabb5;
    --border: #24343d;
    --accent: #4fd1c5;
    --accent-soft: #16302f;
    --danger: #ff9c92;
    --shadow: none;
  }
}

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  padding: 0 12px calc(28px + env(safe-area-inset-bottom));
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Tahoma, "Iranian Sans", "Vazirmatn", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  background-image: linear-gradient(180deg, var(--bg-accent) 0%, var(--bg) 260px);
  background-repeat: no-repeat;
  overflow-wrap: break-word;
}

.app-header {
  padding: 22px 6px 6px;
  text-align: right;
}

.app-header h1 {
  margin: 0;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.2px;
}

.subtitle {
  margin: 4px 0 0;
  font-size: 15px;
  color: var(--accent);
  font-weight: 600;
}

.unit-guide {
  margin: 8px 0 0;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text);
}

.unit-example {
  margin: 7px 0 0;
  padding: 9px 12px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13.5px;
  font-weight: 700;
  line-height: 1.6;
  text-align: center;
}

.autosave-note {
  margin: 2px 0 0;
  font-size: 12.5px;
  color: var(--muted);
}

main { display: block; }

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin: 14px 0;
  overflow: hidden;
}

.panel-title {
  margin: 0;
  padding: 12px 16px 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.2px;
}

.panel-body { padding: 4px 16px 16px; }

.rows { padding: 0 0 6px; }

.row {
  display: block;
  padding: 7px 16px 5px;
  border-top: 1px solid var(--border);
}

.row-main {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 48px;
}

.row-label {
  flex: 1 1 36%;
  min-width: 0;
  font-size: 16px;
  line-height: 1.45;
  cursor: default;
}

/* کادر مبلغ: همیشه به اندازه کافی عریض و بدون سرریز شدن عدد از کادر */
.amount-wrap {
  flex: 1 1 64%;
  min-width: 0;
}

.amount {
  display: block;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
  min-height: 46px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: clamp(16px, 5.2vw, 20px);
  font-weight: 600;
  text-align: center;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.2px;
  direction: ltr;
  overflow: hidden;
  word-break: break-all;
  -webkit-appearance: none;
  appearance: none;
}

/* عددهای بلندتر هرچه بیشتر کمی کوچک‌تر می‌شوند تا هیچ‌وقت از کادر بیرون نزنند */
.amount.dense   { font-size: clamp(14px, 4.4vw, 17px); letter-spacing: -0.4px; }
.amount.denser  { font-size: clamp(12px, 3.7vw, 15px); letter-spacing: -0.6px; }
.amount.densest { font-size: clamp(11px, 3.2vw, 13px); letter-spacing: -0.6px; }

.equiv {
  margin: 3px 0 0;
  min-height: 18px;
  font-size: 12px;
  line-height: 1.45;
  color: var(--muted);
  text-align: left;
}

.equiv[data-filled="yes"] {
  color: var(--accent);
  font-weight: 600;
  font-size: 12.5px;
}

.amount::placeholder { color: var(--muted); opacity: 0.6; font-weight: 400; }

.amount:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--card);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.amount[data-filled="yes"] { background: var(--accent-soft); border-color: transparent; }

.clear {
  flex: 0 0 40px;
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  border-radius: 20px;
  background: transparent;
  color: var(--muted);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

.clear:active { background: var(--accent-soft); color: var(--accent); }
.clear[hidden] { visibility: hidden; display: block; }

.hint {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.9;
  color: var(--muted);
}

.btn {
  display: block;
  width: 100%;
  min-height: 48px;
  margin-top: 12px;
  padding: 12px 16px;
  border: 1px solid transparent;
  border-radius: 13px;
  background: var(--accent);
  color: #fff;
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

@media (prefers-color-scheme: dark) {
  .btn { color: #06231f; }
  .btn-secondary { color: var(--accent); }
}

.btn:active { opacity: 0.85; }

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

.status {
  min-height: 20px;
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

.status[data-kind="error"] { color: var(--danger); }

.help summary {
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.help summary::-webkit-details-marker { display: none; }
.help summary::before { content: "▾ "; color: var(--muted); }
.help[open] summary::before { content: "▴ "; }

.help h3 {
  margin: 14px 0 4px;
  font-size: 14px;
  font-weight: 600;
}

.help ol {
  margin: 0;
  padding-inline-start: 20px;
  font-size: 13.5px;
  line-height: 1.95;
  color: var(--text);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(20px + env(safe-area-inset-bottom));
  transform: translateX(-50%) translateY(10px);
  max-width: 88vw;
  padding: 9px 18px;
  border-radius: 999px;
  background: rgba(16, 32, 42, 0.92);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
  z-index: 50;
}

.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (prefers-color-scheme: dark) {
  .toast { background: rgba(234, 241, 244, 0.94); color: #0c1418; }
}

@media (min-width: 520px) {
  body { max-width: 640px; margin: 0 auto; padding-inline: 16px; }
}