@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;700&family=Inter:wght@300;400;600&display=swap');

/* ── Theme variables ─────────────────────────────────────── */
:root {
  --body-bg:          linear-gradient(160deg, #fff6f0 0%, #ffeee6 50%, #fff0f7 100%);
  --surface:          #ffffff;
  --text:             #3a2010;
  --text-muted:       #c9856e;
  --text-body:        #7a5040;
  --text-label:       #c9a090;
  --border:           #f5ddd4;
  --card-border:      #fce8de;
  --card-shadow:      rgba(232, 112, 74, 0.12);
  --input-bg:         #ffffff;
  --placeholder:      #e0c0b0;
  --divider:          linear-gradient(90deg, transparent, #f5ddd4, transparent);
  --badge-bg:         linear-gradient(135deg, #fff0e6, #ffe4f0);
  --badge-color:      #d4633a;
  --badge-border:     #f5d4c4;
  --hanja-color:      #e8a080;
  --copy-bg:          #fff0e8;
  --copy-color:       #c9705a;
  --copy-border:      #f5ddd4;
  --back-bg:          #ffffff;
  --back-color:       #c9705a;
  --back-border:      #f5ddd4;
  --back-hover-bg:    #fff5f0;
  --toggle-bg:        #ffffff;
  --toggle-border:    #f5ddd4;
  --toggle-icon:      '🌙';
}

[data-theme="dark"] {
  --body-bg:          linear-gradient(160deg, #1c0f08 0%, #20090e 50%, #1a0c14 100%);
  --surface:          #28150d;
  --text:             #faeae0;
  --text-muted:       #e0907a;
  --text-body:        #e8c8b8;
  --text-label:       #c08870;
  --border:           #9a5840;
  --card-border:      #4a2418;
  --card-shadow:      rgba(0, 0, 0, 0.35);
  --input-bg:         #50281a;
  --placeholder:      #a07060;
  --divider:          linear-gradient(90deg, transparent, #3d2015, transparent);
  --badge-bg:         linear-gradient(135deg, #2a1208, #280810);
  --badge-color:      #f0a080;
  --badge-border:     #3d2010;
  --hanja-color:      #e09070;
  --copy-bg:          #3a1e10;
  --copy-color:       #f0a080;
  --copy-border:      #9a5840;
  --back-bg:          #3a1e10;
  --back-color:       #f0a080;
  --back-border:      #9a5840;
  --back-hover-bg:    #4a2818;
  --toggle-bg:        #3a1e10;
  --toggle-border:    #9a5840;
}

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

body {
  font-family: 'Inter', 'Noto Sans KR', sans-serif;
  background: var(--body-bg);
  background-attachment: fixed;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  color: var(--text);
  transition: color 0.3s;
}

.container {
  width: 100%;
  max-width: 460px;
  text-align: center;
}

/* ── Theme toggle button ─────────────────────────────────── */
.theme-toggle {
  position: fixed;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--toggle-border);
  background: var(--toggle-bg);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px var(--card-shadow);
  transition: transform 0.2s, box-shadow 0.2s, background 0.3s, border-color 0.3s;
  z-index: 100;
}
.theme-toggle:hover {
  transform: scale(1.12);
  box-shadow: 0 4px 14px var(--card-shadow);
}

/* ── Header ──────────────────────────────────────────────── */
header h1 {
  font-family: 'Noto Sans KR', sans-serif;
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #e8603a, #e8407a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

header .subtitle {
  margin-top: 10px;
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 300;
  transition: color 0.3s;
}

/* ── Form ────────────────────────────────────────────────── */
main {
  margin-top: 44px;
}

.form-group {
  margin-bottom: 18px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.9px;
  margin-bottom: 8px;
  transition: color 0.3s;
}

.form-group input {
  width: 100%;
  padding: 14px 18px;
  border: 1.5px solid var(--border);
  border-radius: 16px;
  font-size: 1rem;
  font-family: inherit;
  background: var(--input-bg);
  color: var(--text);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.3s, color 0.3s;
}

.form-group input:focus {
  border-color: #e8703a;
  box-shadow: 0 0 0 3px rgba(232, 112, 58, 0.15);
}

.form-group input::placeholder {
  color: var(--placeholder);
}

/* ── Date selects ────────────────────────────────────────── */
.date-selects {
  display: flex;
  gap: 8px;
}

.date-selects select {
  flex: 1;
  padding: 14px 8px;
  border: 1.5px solid var(--border);
  border-radius: 16px;
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--input-bg);
  color: var(--text);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.3s, color 0.3s;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  text-align: center;
}

.date-selects select:focus {
  border-color: #e8703a;
  box-shadow: 0 0 0 3px rgba(232, 112, 58, 0.15);
}

/* ── Submit button ───────────────────────────────────────── */
.btn-main {
  width: 100%;
  margin-top: 10px;
  padding: 16px;
  background: linear-gradient(135deg, #e8703a, #e8407a);
  color: #fff;
  border: none;
  border-radius: 16px;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.1s, box-shadow 0.2s;
  box-shadow: 0 4px 16px rgba(232, 80, 80, 0.25);
  letter-spacing: 0.3px;
}

.btn-main:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232, 80, 80, 0.35);
}
.btn-main:active { transform: translateY(0); }

/* ── Result card ─────────────────────────────────────────── */
.result-card {
  background: var(--surface);
  border-radius: 24px;
  padding: 40px 32px;
  box-shadow: 0 4px 32px var(--card-shadow);
  margin-top: 28px;
  border: 1px solid var(--card-border);
  transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.season-badge {
  display: inline-block;
  padding: 5px 16px;
  background: var(--badge-bg);
  color: var(--badge-color);
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 20px;
  border: 1px solid var(--badge-border);
  transition: background 0.3s, color 0.3s, border-color 0.3s;
}

.result-name-intro {
  font-size: 0.85rem;
  color: var(--text-label);
  margin-bottom: 12px;
  font-weight: 400;
  transition: color 0.3s;
}

.result-korean-name {
  font-family: 'Noto Sans KR', sans-serif;
  font-size: 4.5rem;
  font-weight: 700;
  letter-spacing: 12px;
  line-height: 1;
  background: linear-gradient(135deg, #e8603a, #e8407a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.result-hanja {
  font-size: 1.3rem;
  color: var(--hanja-color);
  margin-top: 10px;
  letter-spacing: 6px;
  transition: color 0.3s;
}

.result-pronunciation {
  font-size: 1rem;
  color: var(--text-label);
  margin-top: 8px;
  font-style: italic;
  transition: color 0.3s;
}

.divider {
  height: 1px;
  background: var(--divider);
  margin: 28px 0;
  transition: background 0.3s;
}

.result-section {
  text-align: left;
  margin-bottom: 22px;
}

.result-section-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-label);
  margin-bottom: 8px;
  transition: color 0.3s;
}

.result-section-text {
  font-size: 0.92rem;
  color: var(--text-body);
  line-height: 1.8;
  transition: color 0.3s;
}

/* ── Share buttons ───────────────────────────────────────── */
.share-section {
  margin-top: 28px;
}

.share-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-label);
  margin-bottom: 12px;
  transition: color 0.3s;
}

.share-buttons {
  display: flex;
  gap: 10px;
}

.btn-share {
  flex: 1;
  padding: 12px;
  border-radius: 14px;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: opacity 0.2s, transform 0.1s, background 0.3s, color 0.3s;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-share:hover  { opacity: 0.85; transform: translateY(-1px); }
.btn-share:active { transform: translateY(0); }

.btn-copy {
  background: var(--copy-bg);
  color: var(--copy-color);
  border: 1px solid var(--copy-border) !important;
}
.btn-twitter {
  background: linear-gradient(135deg, #e8703a, #e8407a);
  color: #fff;
}

/* ── Back link ───────────────────────────────────────────── */
.back-link {
  display: inline-block;
  margin-top: 20px;
  padding: 13px 32px;
  background: var(--back-bg);
  color: var(--back-color);
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 14px;
  border: 1.5px solid var(--back-border);
  transition: background 0.2s, border-color 0.2s, transform 0.1s, box-shadow 0.2s, color 0.3s;
  box-shadow: 0 2px 8px var(--card-shadow);
}
.back-link:hover {
  background: var(--back-hover-bg);
  border-color: #e8703a;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px var(--card-shadow);
}

/* ── Intro text (index) ──────────────────────────────────── */
.intro-text {
  margin-top: 16px;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  transition: color 0.3s;
}

/* ── Site title link (about/privacy pages) ───────────────── */
.site-title-link a {
  font-family: 'Noto Sans KR', sans-serif;
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #e8603a, #e8407a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

/* ── Content pages (about, privacy) ─────────────────────── */
.content-card {
  background: var(--surface);
  border-radius: 24px;
  padding: 40px 32px;
  box-shadow: 0 4px 32px var(--card-shadow);
  margin-top: 28px;
  border: 1px solid var(--card-border);
  text-align: left;
  transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.content-card h2 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  margin-top: 28px;
  transition: color 0.3s;
}

.content-card h2:first-child {
  margin-top: 0;
}

.content-card p {
  font-size: 0.9rem;
  color: var(--text-body);
  line-height: 1.85;
  margin-bottom: 10px;
  transition: color 0.3s;
}

.content-card ul {
  font-size: 0.9rem;
  color: var(--text-body);
  line-height: 1.85;
  margin-bottom: 10px;
  padding-left: 20px;
  transition: color 0.3s;
}

.content-card ul li {
  margin-bottom: 6px;
}

.content-card a {
  color: #e8703a;
  text-decoration: none;
}

.content-card a:hover {
  text-decoration: underline;
}

/* ── Footer ──────────────────────────────────────────────── */
.site-footer {
  margin-top: 28px;
  padding: 12px 0 4px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
  transition: color 0.3s;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 8px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--text);
}

/* ── Mobile ──────────────────────────────────────────────── */
@media (max-width: 480px) {
  .result-korean-name { font-size: 3.5rem; letter-spacing: 8px; }
  .result-card { padding: 32px 24px; }
  .content-card { padding: 32px 24px; }
}