:root {
  --paper: #f7f1e8;
  --paper-strong: #fcdcc0;
  --paper-soft: #e7f4ee;
  --ink: #1f1a17;
  --muted: #6c625c;
  --accent: #f46f3b;
  --teal: #2c8b8b;
  --card: #ffffff;
  --shadow: rgba(31, 26, 23, 0.12);
  --shadow-strong: rgba(31, 26, 23, 0.2);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  color: var(--ink);
  background: linear-gradient(
    135deg,
    var(--paper) 0%,
    var(--paper-strong) 35%,
    var(--paper-soft) 100%
  );
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle at 12% 16%, rgba(244, 111, 59, 0.16), transparent 40%),
    radial-gradient(circle at 82% 10%, rgba(44, 139, 139, 0.17), transparent 45%);
  pointer-events: none;
}

.page {
  position: relative;
  z-index: 1;
  max-width: 920px;
  margin: 0 auto;
  padding: 34px 20px 56px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 22px;
}

.topbar h1 {
  margin: 0;
  font-family: "Fraunces", serif;
  font-size: 40px;
}

.topbar p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.back-link {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  border: 1px solid rgba(31, 26, 23, 0.15);
  background: rgba(255, 255, 255, 0.7);
  padding: 9px 14px;
  border-radius: 999px;
  white-space: nowrap;
}

.panel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 16px;
}

.panel {
  background: var(--card);
  border-radius: 18px;
  box-shadow: 0 14px 30px var(--shadow);
  padding: 18px;
}

label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
}

textarea,
select {
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(31, 26, 23, 0.18);
  padding: 10px 12px;
  font-family: inherit;
  font-size: 14px;
  background: #fff;
  color: var(--ink);
}

textarea {
  resize: vertical;
  min-height: 90px;
}

.control-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

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

.btn {
  border: none;
  border-radius: 999px;
  padding: 9px 15px;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn.ghost {
  background: rgba(31, 26, 23, 0.08);
  color: var(--ink);
}

.btn.outline {
  background: transparent;
  color: var(--ink);
  border: 1px solid rgba(31, 26, 23, 0.25);
}

.account-meta {
  margin-top: 14px;
  border-radius: 12px;
  background: rgba(31, 26, 23, 0.04);
  padding: 10px 12px;
}

.meta-line {
  display: flex;
  gap: 8px;
  font-size: 13px;
}

.meta-line + .meta-line {
  margin-top: 4px;
}

.meta-line span {
  color: var(--muted);
}

.hint {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.hint code {
  background: rgba(31, 26, 23, 0.06);
  border-radius: 6px;
  padding: 1px 5px;
}

.error {
  margin: 12px 0 0;
  color: #8c3a18;
  background: rgba(244, 111, 59, 0.16);
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 13px;
}

.code-panel {
  display: grid;
  align-content: center;
}

.code-value {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
  letter-spacing: 0.16em;
  text-indent: 0.16em;
  text-align: center;
  font-size: clamp(34px, 8vw, 52px);
  font-weight: 700;
  padding: 18px 10px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(44, 139, 139, 0.18), rgba(244, 111, 59, 0.18));
  box-shadow: inset 0 0 0 1px rgba(31, 26, 23, 0.08);
}

.timer-row {
  margin-top: 14px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

#countdown-text {
  color: var(--muted);
  font-size: 14px;
}

.progress {
  margin-top: 12px;
  height: 9px;
  border-radius: 999px;
  background: rgba(31, 26, 23, 0.08);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--teal), var(--accent));
  transition: width 0.2s linear;
}

.status {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--muted);
}

@media (max-width: 860px) {
  .topbar {
    flex-direction: column;
  }

  .panel-grid {
    grid-template-columns: 1fr;
  }

  .topbar h1 {
    font-size: 32px;
  }
}

@media (max-width: 620px) {
  .control-row {
    grid-template-columns: 1fr;
  }

  .timer-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .timer-row .btn {
    width: 100%;
  }
}