/* repos/hitono-torisetsu/style.css */

/* -- CSS Variables (DESIGN.md) --------------------------------------- */
:root {
  --bg:         #120A1F;
  --card:       #F7F0FF;
  --card-sub:   #FFF5FA;
  --purple:     #8B5CF6;
  --purple-dark:#7c3aed;
  --pink:       #EC4899;
  --gold:       #F5C542;
  --text:       #2B173D;
  --text-light: #F3E8FF;
  --radius:     18px;
  --shadow-card: 0 8px 40px rgba(139,92,246,0.18), 0 2px 12px rgba(0,0,0,0.25);
}

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

html {
  min-height: 100vh;
  background-color: var(--bg);
}

body {
  font-family: 'Noto Sans JP', sans-serif;
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 70% 50% at 15% 15%, rgba(139,92,246,0.18) 0%, transparent 65%),
    radial-gradient(ellipse 55% 55% at 85% 80%, rgba(236,72,153,0.10) 0%, transparent 60%),
    radial-gradient(ellipse 45% 60% at 70% 5%,  rgba(139,92,246,0.09) 0%, transparent 55%);
  color: var(--text-light);
  min-height: 100vh;
  overflow-x: hidden;
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); border: 0;
}

/* -- Layout ---------------------------------------------------------- */
#app { max-width: 480px; margin: 0 auto; padding: 0 20px 72px; }

/* -- Header ---------------------------------------------------------- */
.site-header {
  text-align: center;
  padding: 40px 0 24px;
  position: relative;
}

.site-header::before {
  content: '';
  display: block;
  width: 1px;
  height: 28px;
  background: linear-gradient(to bottom, transparent, rgba(139,92,246,0.5));
  margin: 0 auto 16px;
}

.site-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2.35rem, 10vw, 3rem);
  font-weight: 600;
  color: var(--text-light);
  letter-spacing: 0.06em;
  white-space: nowrap;
  text-shadow: 0 0 80px rgba(139,92,246,0.5), 0 2px 4px rgba(0,0,0,0.3);
  line-height: 1.1;
}

.site-tagline {
  margin-top: 12px;
  font-size: 0.9rem;
  color: rgba(243,232,255,0.6);
  line-height: 1.7;
  letter-spacing: 0.04em;
}

.site-header::after {
  content: '';
  display: block;
  width: 48px;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(139,92,246,0.6), transparent);
  margin: 20px auto 0;
}

/* -- Form ------------------------------------------------------------ */
#form-input {
  padding: 22px;
  background: rgba(255,255,255,0.055);
  border: 1px solid rgba(243,232,255,0.12);
  border-radius: 24px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.24);
  backdrop-filter: blur(12px);
}

.field-group { margin-bottom: 28px; }

.field-group legend {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  color: rgba(243,232,255,0.72);
  margin-bottom: 16px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.field-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  color: rgba(243,232,255,0.72);
  margin-bottom: 8px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.sub-label {
  font-size: 0.72rem;
  font-weight: 500;
  color: rgba(243,232,255,0.58);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
  margin-top: 16px;
}

input[type="text"] {
  width: 100%;
  padding: 16px 18px;
  background: rgba(139,92,246,0.07);
  border: 1px solid rgba(139,92,246,0.22);
  border-radius: 14px;
  color: var(--text-light);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 1rem;
  transition: border-color 0.25s, box-shadow 0.25s, background 0.25s;
}

input[type="text"]:focus {
  outline: none;
  border-color: var(--purple);
  background: rgba(139,92,246,0.12);
  box-shadow: 0 0 0 3px rgba(139,92,246,0.15);
}

input[type="text"]::placeholder { color: rgba(243,232,255,0.42); }

/* -- Month picker ---------------------------------------------------- */
.month-picker {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 7px;
  margin-bottom: 4px;
}

.month-picker button {
  padding: 12px 0;
  background: rgba(139,92,246,0.07);
  border: 1px solid rgba(139,92,246,0.2);
  border-radius: 10px;
  color: rgba(243,232,255,0.7);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.82rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.1s;
  min-height: 44px;
}

.month-picker button:hover {
  background: rgba(139,92,246,0.18);
  border-color: rgba(139,92,246,0.45);
  color: var(--text-light);
}

.month-picker button:active { transform: scale(0.96); }

.month-picker button.selected {
  background: var(--purple);
  border-color: var(--purple);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 2px 12px rgba(139,92,246,0.35);
}

/* -- Select (year / day) --------------------------------------------- */
select {
  width: 100%;
  padding: 14px 12px;
  background: rgba(139,92,246,0.07);
  border: 1px solid rgba(139,92,246,0.22);
  border-radius: 12px;
  color: var(--text-light);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.95rem;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  transition: border-color 0.25s, box-shadow 0.25s, background 0.25s;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='rgba(139,92,246,0.7)' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
  min-height: 48px;
}

select:focus {
  outline: none;
  border-color: var(--purple);
  background-color: rgba(139,92,246,0.12);
  box-shadow: 0 0 0 3px rgba(139,92,246,0.15);
}

select option { background: #1a0f2e; color: var(--text-light); }

.date-selects { display: flex; gap: 10px; }
.select-wrap { flex: 1; }

fieldset { border: none; }

.error-msg {
  font-size: 0.78rem;
  color: var(--pink);
  margin-top: 10px;
  min-height: 1.2em;
  letter-spacing: 0.02em;
}

/* -- CTA Button ------------------------------------------------------ */
#btn-fortune {
  width: 100%;
  padding: 17px;
  background: linear-gradient(135deg, var(--purple) 0%, var(--purple-dark) 100%);
  color: #fff;
  border: none;
  border-radius: 14px;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.1em;
  transition: box-shadow 0.25s, transform 0.15s, opacity 0.2s;
  box-shadow: 0 4px 28px rgba(139,92,246,0.45), 0 1px 4px rgba(0,0,0,0.2);
  margin-top: 4px;
}

#btn-fortune:hover:not(:disabled) {
  box-shadow: 0 6px 36px rgba(139,92,246,0.6), 0 2px 8px rgba(0,0,0,0.3);
  transform: translateY(-1px);
}

#btn-fortune:active:not(:disabled) {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 2px 16px rgba(139,92,246,0.4);
}

#btn-fortune:disabled {
  background: rgba(139,92,246,0.25);
  box-shadow: none;
  cursor: not-allowed;
  opacity: 0.6;
}

/* -- Secondary Buttons ----------------------------------------------- */
.btn-secondary {
  padding: 11px 18px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(139,92,246,0.25);
  border-radius: 10px;
  color: rgba(243,232,255,0.8);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.85rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.btn-secondary:hover {
  background: rgba(139,92,246,0.15);
  border-color: rgba(139,92,246,0.5);
  color: var(--text-light);
}

.btn-retry {
  display: block;
  width: 100%;
  padding: 14px;
  background: transparent;
  border: 1px solid rgba(139,92,246,0.3);
  border-radius: 12px;
  color: rgba(243,232,255,0.55);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.9rem;
  cursor: pointer;
  text-align: center;
  margin-top: 16px;
  transition: border-color 0.2s, color 0.2s;
  letter-spacing: 0.04em;
}

.btn-retry:hover {
  border-color: rgba(139,92,246,0.6);
  color: rgba(243,232,255,0.85);
}

/* -- Loading --------------------------------------------------------- */
#overlay-loading {
  position: fixed;
  inset: 0;
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 60% 50% at 30% 40%, rgba(139,92,246,0.15) 0%, transparent 65%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s;
}

#overlay-loading.active { opacity: 1; pointer-events: all; }

.loading-inner { text-align: center; }

.loading-text {
  font-size: 0.95rem;
  color: rgba(243,232,255,0.75);
  margin-bottom: 24px;
  letter-spacing: 0.06em;
}

.loading-dots { display: flex; gap: 10px; justify-content: center; }

.loading-dots span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--purple);
  animation: dot-bounce 1.4s infinite ease-in-out;
}

.loading-dots span:nth-child(2) { animation-delay: 0.22s; }
.loading-dots span:nth-child(3) { animation-delay: 0.44s; }

@keyframes dot-bounce {
  0%, 80%, 100% { transform: scale(0.5); opacity: 0.3; }
  40%            { transform: scale(1.1); opacity: 1; }
}

/* -- Result heading -------------------------------------------------- */
.result-heading {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2rem;
  text-align: center;
  padding: 36px 0 28px;
  color: var(--text-light);
  letter-spacing: 0.08em;
  text-shadow: 0 0 40px rgba(139,92,246,0.35);
}

.cards-container {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* -- Cards ----------------------------------------------------------- */
.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 22px 22px 18px;
  color: var(--text);
  box-shadow: var(--shadow-card);
  border-top: 2px solid rgba(139,92,246,0.18);
  opacity: 0;
  transform: translateY(24px);
}

#card-lifepath {
  padding: 26px 24px 22px;
  background:
    radial-gradient(circle at 50% 0%, rgba(139,92,246,0.16), transparent 42%),
    var(--card);
}

#card-birthday,
#card-personalyear {
  padding: 18px 20px;
}

#card-birthday .card-toggle { display: none; }

#card-birthday .card-number,
#card-personalyear .card-number {
  font-size: 3.6rem;
}

.card.visible {
  animation: card-in 0.44s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

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

.card-number {
  display: block;
  font-family: 'Cormorant Garamond', serif;
  font-size: 5.5rem;
  font-weight: 600;
  color: var(--purple);
  line-height: 1;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: 4px;
}

.card-label {
  display: block;
  font-size: 0.7rem;
  color: rgba(43,23,61,0.45);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  margin-bottom: 16px;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 3px;
  letter-spacing: 0.01em;
}

.card-subtitle {
  font-size: 0.82rem;
  color: rgba(43,23,61,0.55);
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}

.card-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.card-keywords span {
  font-size: 0.72rem;
  padding: 4px 11px;
  background: rgba(139,92,246,0.09);
  border: 1px solid rgba(139,92,246,0.2);
  border-radius: 20px;
  color: var(--purple-dark);
  letter-spacing: 0.03em;
  font-weight: 500;
}

.card-text {
  font-size: 0.88rem;
  line-height: 1.75;
  color: rgba(43,23,61,0.82);
}

/* -- Divider before toggle ------------------------------------------ */
.card-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  border-top: 1px solid rgba(139,92,246,0.1);
  cursor: pointer;
  color: var(--purple);
  font-size: 0.8rem;
  font-family: 'Noto Sans JP', sans-serif;
  padding: 12px 0 4px;
  width: 100%;
  margin-top: 12px;
  transition: color 0.2s;
  letter-spacing: 0.04em;
}

.card-toggle:hover { color: var(--purple-dark); }

.card-toggle[aria-expanded="true"] .toggle-label-more { display: none; }
.card-toggle[aria-expanded="false"] .toggle-label-less { display: none; }
.card-toggle[aria-expanded="true"] svg { transform: rotate(180deg); }
.card-toggle svg { transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1); }

.card-desc {
  font-size: 0.86rem;
  line-height: 1.85;
  padding-top: 12px;
  color: rgba(43,23,61,0.78);
}

.year-block {
  margin-top: 16px;
  padding: 14px 16px;
  background: rgba(139,92,246,0.05);
  border-left: 2px solid rgba(139,92,246,0.3);
  border-radius: 0 8px 8px 0;
}

.year-block h4 {
  font-size: 0.75rem;
  color: var(--purple);
  margin-bottom: 6px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 600;
}

/* -- Master Number styling ------------------------------------------- */
.card.master {
  border-top: 2px solid var(--gold);
  background: linear-gradient(160deg, #FFFBEF 0%, var(--card) 50%);
  box-shadow: 0 8px 40px rgba(245,197,66,0.18), 0 2px 12px rgba(0,0,0,0.15);
}

.card.master .card-number {
  color: var(--gold);
  text-shadow: 0 0 40px rgba(245,197,66,0.45), 0 0 80px rgba(245,197,66,0.2);
}

.card.master .card-keywords span {
  background: rgba(245,197,66,0.1);
  border-color: rgba(245,197,66,0.3);
  color: #9a6d00;
}

.master-badge {
  font-size: 0.6rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--gold), #e6a800);
  color: #fff;
  padding: 2px 8px;
  border-radius: 8px;
  margin-left: 8px;
  vertical-align: middle;
  letter-spacing: 0.08em;
  text-shadow: none;
  box-shadow: 0 1px 4px rgba(245,197,66,0.4);
}

/* -- Share ----------------------------------------------------------- */
.share-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 24px;
}

#btn-save-png {
  justify-content: center;
  width: 100%;
  padding: 15px;
  background: linear-gradient(135deg, var(--purple), var(--pink));
  color: #fff;
  border: none;
  font-weight: 700;
}

#btn-save-png:hover {
  opacity: 0.9;
  background: linear-gradient(135deg, var(--purple), var(--pink));
}

#btn-share {
  justify-content: center;
  width: 100%;
}

.share-fallback {
  width: 100%;
  font-size: 0.82rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(139,92,246,0.2);
  padding: 12px 14px;
  border-radius: 10px;
  word-break: break-all;
  line-height: 1.6;
}

/* -- Ad area --------------------------------------------------------- */
.ad-banner { margin: 20px 0; min-height: 60px; }

/* -- Share card (off-screen) ----------------------------------------- */
#share-card-hidden {
  position: fixed;
  left: -9999px;
  top: -9999px;
  width: 480px;
}

.share-card-inner {
  background: linear-gradient(145deg, #1d0f38, #120A1F);
  padding: 44px 36px;
  border-radius: 20px;
  border: 1px solid rgba(139,92,246,0.35);
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--text-light);
}

.sc-brand {
  font-size: 0.75rem;
  opacity: 0.5;
  margin-bottom: 22px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.sc-numbers {
  font-size: 1rem;
  line-height: 2.1;
  margin-bottom: 18px;
}

.sc-copy {
  font-size: 0.88rem;
  opacity: 0.75;
  margin-bottom: 22px;
  line-height: 1.6;
}

.sc-url { font-size: 0.7rem; opacity: 0.35; }

/* -- Reduced motion (accessibility) ---------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .card {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
  #overlay-loading { transition: none; }
  .loading-dots span { animation: none; opacity: 1; }
  #btn-fortune { transition: none; }
}