:root {
  --bg: #f3f0e7;
  --paper: #fbf9f3;
  --paper-strong: #fffdf7;
  --line: #1d2533;
  --line-soft: #6d7584;
  --text: #171c25;
  --sub: #596174;
  --accent: #1d6cff;
  --accent-2: #ff6f32;
  --danger: #c3322a;
  --shadow: 0 14px 30px rgba(9, 16, 30, 0.14);
}

* {
  box-sizing: border-box;
}

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

html {
  background:
    radial-gradient(1200px 420px at 105% -5%, rgba(29, 108, 255, 0.18), transparent 55%),
    radial-gradient(760px 280px at -8% 120%, rgba(255, 111, 50, 0.14), transparent 60%),
    repeating-linear-gradient(
      90deg,
      rgba(23, 28, 37, 0.04) 0,
      rgba(23, 28, 37, 0.04) 1px,
      transparent 1px,
      transparent 28px
    ),
    var(--bg);
}

body {
  margin: 0;
  font-family: "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: transparent;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px;
}

.header {
  margin-bottom: 18px;
}

.header h1 {
  margin: 0;
  font-family: "DIN Alternate", "Arial Narrow", "PingFang SC", sans-serif;
  font-size: 34px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #101725;
}

.card {
  margin-bottom: 16px;
  padding: 16px;
  border: 2px solid var(--line);
  border-radius: 12px;
  background: linear-gradient(180deg, var(--paper-strong), var(--paper));
  box-shadow: var(--shadow);
}

.card h2 {
  margin: 0 0 14px;
  font-size: 15px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #223049;
}

.code-form {
  display: flex;
  gap: 10px;
}

.code-form input {
  flex: 1;
  height: 44px;
  padding: 0 12px;
  border: 2px solid var(--line);
  border-radius: 10px;
  background: #ffffff;
  color: var(--text);
  font: inherit;
  font-size: 15px;
  font-weight: 600;
}

.code-form input::placeholder {
  color: #8a92a3;
  font-weight: 500;
}

.code-form input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(29, 108, 255, 0.18);
}

button {
  height: 44px;
  padding: 0 14px;
  border: 2px solid #0f1830;
  border-radius: 10px;
  background: linear-gradient(180deg, #3c82ff, #1d6cff);
  color: #f8fbff;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease, filter 120ms ease;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 8px 16px rgba(29, 108, 255, 0.24);
  filter: saturate(1.08);
}

button:active:not(:disabled) {
  transform: translateY(0);
}

button.secondary {
  background: linear-gradient(180deg, #fffaf5, #f4ede4);
  color: #202938;
  border-color: #4d5563;
}

button.secondary:hover:not(:disabled) {
  box-shadow: 0 8px 16px rgba(23, 28, 37, 0.15);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.number {
  margin-bottom: 12px;
  font-family: "DIN Alternate", "Avenir Next", sans-serif;
  font-size: 34px;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.2;
  color: #112341;
  word-break: break-all;
  cursor: pointer;
}

.meta-row {
  display: flex;
  justify-content: space-between;
  margin: 8px 0;
  padding-bottom: 7px;
  border-bottom: 1px dashed #bac1ce;
  color: var(--sub);
}

.meta-row span:last-child {
  color: #25324a;
  font-weight: 600;
}

.actions {
  margin-top: 14px;
  display: flex;
  gap: 10px;
}

.sms-code {
  display: inline-block;
  min-width: 120px;
  padding: 3px 10px;
  border: 2px solid #1a2a48;
  border-radius: 10px;
  background: linear-gradient(180deg, #f7fbff, #e8f2ff);
  font-family: "DIN Alternate", "Avenir Next", sans-serif;
  font-size: 54px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #1544aa;
  cursor: pointer;
}

.sms-text {
  min-height: 48px;
  margin-top: 12px;
  color: #495064;
  line-height: 1.55;
}

.history {
  display: grid;
  gap: 10px;
  max-height: 280px;
  overflow: auto;
}

.history.empty {
  color: var(--sub);
}

.history-item {
  padding: 10px;
  border: 1px solid #bec6d4;
  border-left: 4px solid var(--accent-2);
  border-radius: 9px;
  background: #fffdf9;
}

.history-item .code {
  color: #0b3da6;
  font-weight: 700;
}

.hint {
  margin-top: 10px;
  color: #667086;
  font-size: 12px;
}

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  max-width: 360px;
  padding: 11px 14px;
  border: 2px solid #20314f;
  border-radius: 10px;
  background: #f8fbff;
  color: #1c2740;
  box-shadow: 0 10px 22px rgba(16, 27, 47, 0.23);
}

.toast.error {
  border-color: var(--danger);
  color: var(--danger);
  background: #fff5f4;
}

.hidden {
  display: none;
}

@media (max-width: 860px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .container {
    padding: 16px;
  }

  .header h1 {
    font-size: 28px;
  }

  .number {
    font-size: 24px;
  }

  .sms-code {
    font-size: 42px;
  }

  .actions {
    flex-direction: column;
  }
}