* { box-sizing: border-box; }

:root {
  --bg: #18181a;
  --cream: #f3ead9;
  --muted: #93a099;
  --accent-orange: #e39a63;
  --accent-orange-soft: rgba(227, 154, 99, 0.16);
  --accent-blue: #7db8d6;
  --accent-blue-soft: rgba(125, 184, 214, 0.16);
  --card-bg: rgba(255, 255, 255, 0.04);
  --card-border: rgba(255, 255, 255, 0.1);
  --font-serif: 'Inter', 'Pretendard Variable', 'Pretendard', -apple-system, sans-serif;
  --font-sans: 'Inter', 'Pretendard Variable', 'Pretendard', -apple-system, sans-serif;
}

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

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes screen-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes dropdown-in {
  from { opacity: 0; transform: translateY(-6px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes topic-land {
  0% { transform: scale(0.94); opacity: 0.6; }
  55% { transform: scale(1.03); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes card-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  position: relative;
  font-family: var(--font-sans);
  max-width: 560px;
  margin: 0 auto;
  padding: 40px 24px 64px;
  background: var(--bg);
  color: var(--cream);
  overflow-x: hidden;
  animation: fade-in 0.5s ease-out;
}

.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 900px 640px at 50% 6%, rgba(227, 154, 99, 0.22), transparent 60%),
    radial-gradient(ellipse 1100px 900px at 50% 105%, rgba(0, 0, 0, 0.5), transparent 65%),
    var(--bg);
}

.bg-glow::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.screen.hidden { display: none; }
.hidden { display: none !important; }

.screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-top: 24px;
}

.screen:not(.hidden) {
  animation: screen-in 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.screen--timer {
  min-height: calc(100vh - 104px);
  width: 100%;
}

.timer-center {
  flex: 1;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Brand / category screen */

.brand { margin-bottom: 32px; }

.eyebrow {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-orange);
  margin: 0 0 12px;
}

.eyebrow--blue { color: var(--accent-blue); }
.eyebrow--orange { color: var(--accent-orange); }

.brand-title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 34px;
  line-height: 1.2;
  margin: 0 0 12px;
}

/* Mode toggle */

.mode-toggle {
  display: inline-flex;
  padding: 4px;
  border-radius: 999px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  gap: 4px;
  margin-bottom: 12px;
}

.mode-btn {
  padding: 10px 18px;
  border-radius: 999px;
  border: none;
  background: transparent;
  color: var(--muted);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.25s ease, color 0.25s ease, transform 0.15s ease;
}

.mode-btn:hover:not(.active) {
  color: var(--cream);
  transform: translateY(-1px);
}

.mode-btn.active {
  background: var(--accent-orange);
  color: #241608;
}

.mode-caption {
  font-size: 14px;
  color: var(--muted);
  margin: 0 0 24px;
  max-width: 360px;
  white-space: pre-line;
}

/* Dropdown */

.dropdown {
  position: relative;
  width: 100%;
  max-width: 360px;
}

.dropdown-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 22px;
  border-radius: 999px;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--cream);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.dropdown-trigger:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.18);
}

.chevron {
  color: var(--muted);
  transition: transform 0.2s;
  font-size: 12px;
}

.dropdown.open .chevron { transform: rotate(180deg); }

.dropdown-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 6px;
  position: absolute;
  left: 0;
  right: 0;
  background: #222224;
  border: 1px solid var(--card-border);
  border-radius: 20px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
  max-height: 320px;
  overflow-y: auto;
  z-index: 10;
  text-align: left;
}

.dropdown-list.hidden { display: none; }

.dropdown-list:not(.hidden) {
  animation: dropdown-in 0.18s ease-out;
  transform-origin: top center;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 14px;
  color: var(--cream);
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  transition: background 0.15s ease, color 0.15s ease, padding-left 0.15s ease;
}

.dropdown-item:hover {
  background: var(--accent-orange-soft);
  color: var(--accent-orange);
  padding-left: 20px;
}

/* Topic display */

.topic-zone {
  width: 100%;
  max-width: 360px;
  margin: 40px 0 8px;
  min-height: 140px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.topic-display {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 42px;
  line-height: 1.15;
  margin: 0;
  max-width: 100%;
  transition: font-size 0.2s ease, color 0.2s ease;
}

.topic-display.placeholder {
  font-family: var(--font-sans);
  font-style: normal;
  font-weight: 500;
  font-size: 16px;
  color: var(--muted);
}

.topic-display.spinning {
  opacity: 0.85;
  filter: blur(0.4px);
}

.topic-display.landed {
  animation: topic-land 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.topic-caps {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 28px;
  max-width: 380px;
}

.section-title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 24px;
  margin: 0 0 20px;
  max-width: 420px;
}

/* Manual topic entry */

.link-btn {
  background: none;
  border: none;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  margin: 20px 0 0;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.15s ease;
}

.link-btn:hover { color: var(--accent-orange); }

.manual-topic {
  width: 100%;
  max-width: 360px;
  display: flex;
  gap: 8px;
  margin: 12px 0 0;
}

.manual-topic.hidden { display: none; }

.manual-topic-input {
  flex: 1;
  min-width: 0;
  padding: 15px 22px;
  border-radius: 999px;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--cream);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
}

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

/* Dials */

.dial-panel {
  width: 100%;
  max-width: 360px;
  margin: 4px 0 20px;
}

.dial-group {
  width: 100%;
  max-width: 360px;
  margin-bottom: 24px;
  text-align: left;
}

.dial-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 14px;
}

.dial-label { color: var(--muted); font-weight: 500; }
.dial-value { color: var(--cream); font-weight: 600; }

.dial-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  outline: none;
}

.dial-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-orange);
  border: 3px solid var(--bg);
  cursor: pointer;
}

.dial-slider--blue::-webkit-slider-thumb { background: var(--accent-blue); }

.dial-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-orange);
  border: 3px solid var(--bg);
  cursor: pointer;
}

.dial-slider--blue::-moz-range-thumb { background: var(--accent-blue); }

/* Buttons */

.btn {
  padding: 15px 32px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, opacity 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover:not(:disabled) { transform: translateY(-2px); }

.btn:active:not(:disabled) { transform: scale(0.97) translateY(0); }

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.btn-primary {
  background: var(--accent-orange);
  color: #241608;
}

.btn-primary:hover:not(:disabled) {
  opacity: 0.92;
  box-shadow: 0 8px 20px rgba(227, 154, 99, 0.25);
}

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

.btn-secondary:hover:not(:disabled) { background: rgba(255, 255, 255, 0.06); }

.button-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-icon {
  width: 48px;
  height: 48px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--card-border);
  background: transparent;
  color: var(--cream);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, transform 0.3s ease;
}

.btn-icon:hover {
  background: rgba(255, 255, 255, 0.06);
  transform: rotate(45deg);
}

/* Big flat digital timer */

.big-timer {
  font-family: var(--font-sans);
  font-size: clamp(72px, 24vw, 160px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cream);
  margin: 0 -24px;
  text-align: center;
  transition: font-size 0.2s ease, color 0.2s ease;
}

.big-timer--overtime {
  font-size: clamp(48px, 14vw, 96px);
  color: var(--accent-orange);
  animation: overtime-pulse 1s ease-in-out infinite;
}

@keyframes overtime-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(0.94); }
}

.hint {
  color: var(--muted);
  font-size: 14px;
  max-width: 340px;
  margin: 0 0 24px;
}

/* Textarea */

.textarea {
  width: 100%;
  max-width: 420px;
  padding: 16px;
  border-radius: 16px;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--cream);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  margin: 16px 0;
  resize: vertical;
}

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

.banner {
  background: var(--accent-orange-soft);
  border: 1px solid rgba(227, 154, 99, 0.35);
  color: var(--accent-orange);
  padding: 10px 16px;
  border-radius: 12px;
  font-size: 14px;
  max-width: 420px;
}

.error {
  color: #e88b8b;
  font-size: 14px;
  margin: -4px 0 16px;
}

.error-card {
  background: rgba(232, 139, 139, 0.1);
  border: 1px solid rgba(232, 139, 139, 0.3);
  color: #e88b8b;
  padding: 20px;
  border-radius: 16px;
  margin-bottom: 24px;
}

.error-card .btn { margin-top: 12px; }

.feedback-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  margin: 32px 0;
}

.feedback-loading .hint { margin: 0; }

.spinner {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 3px solid var(--card-border);
  border-top-color: var(--accent-orange);
  animation: spin 0.8s linear infinite;
}

/* Feedback cards */

.feedback-result {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 28px;
  text-align: left;
}

.feedback-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 18px 20px;
  animation: card-in 0.45s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.feedback-card:nth-child(1) { animation-delay: 0s; }
.feedback-card:nth-child(2) { animation-delay: 0.08s; }
.feedback-card:nth-child(3) { animation-delay: 0.16s; }
.feedback-card:nth-child(4) { animation-delay: 0.24s; }

.feedback-card h3 {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-orange);
  margin: 0 0 8px;
}

.feedback-card--overall {
  background: var(--accent-orange-soft);
  border-color: rgba(227, 154, 99, 0.3);
}

.feedback-card--overall h3 { color: var(--cream); }

.feedback-card--gaps {
  background: var(--accent-blue-soft);
  border-color: rgba(125, 184, 214, 0.3);
}

.feedback-card--gaps h3 { color: var(--accent-blue); }

.feedback-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--cream);
}

.made-by {
  position: fixed;
  right: 14px;
  bottom: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  color: var(--cream);
  text-decoration: none;
  backdrop-filter: blur(6px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  z-index: 10;
}

.made-by:hover {
  color: var(--accent-orange);
  border-color: var(--accent-orange);
}