/* birthday.css - Find Your Birthday in Pi Page Styling */

:root {
  --teal: #08977d;
  --teal-dark: #06705f;
  --teal-soft: #dff4ed;
  --teal-border: #bce3d7;
  --ink: #071723;
  --ink-secondary: #52646b;
  --surface: #ffffff;
  --surface-soft: #f4faf7;
  --surface-muted: #eef6f3;
  --line: #dfe8e5;
  --coral: #d9423e;
  --coral-soft: #fdf0ef;
  --coral-hover: #c33531;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-card: 0 16px 48px rgba(7, 23, 35, 0.08);
  --shadow-button: 0 10px 24px rgba(8, 151, 125, 0.24);
}

/* Page Layout */
.birthday-main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

/* Hero Section */
.birthday-hero {
  text-align: center;
  margin-bottom: 40px;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--teal-soft);
  color: var(--teal-dark);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
}

.birthday-hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  color: var(--ink);
  line-height: 1.15;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}

.birthday-hero .hero-desc {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--ink-secondary);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Search Tool Layout Grid */
.search-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 60px;
}

@media (min-width: 860px) {
  .search-container {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }
}

/* Search Controls Card */
.search-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 4vw, 32px);
  box-shadow: var(--shadow-card);
}

.section-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 22px;
}

.field-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--ink-secondary);
  margin-bottom: 8px;
}

.field-hint {
  font-size: 0.8rem;
  color: #798d94;
  margin-top: 4px;
}

/* Date input */
.date-picker-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.date-input {
  flex: 1;
  min-width: 200px;
  padding: 12px 16px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink);
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  font-family: inherit;
}

.date-input:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(8, 151, 125, 0.18);
}

/* Quick Date Presets */
.preset-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.preset-btn {
  background: var(--surface-muted);
  border: 1px solid transparent;
  color: var(--ink-secondary);
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.preset-btn:hover {
  background: var(--teal-soft);
  color: var(--teal-dark);
}

/* Format Segmented Picker */
.format-picker {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  background: var(--surface-soft);
  padding: 6px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
}

.format-option {
  position: relative;
  text-align: center;
}

.format-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.format-label {
  display: block;
  padding: 10px 8px;
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--ink-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.format-option input:checked + .format-label {
  background: var(--surface);
  color: var(--teal-dark);
  box-shadow: 0 3px 10px rgba(7, 23, 35, 0.08);
}

.format-label .format-sub {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  color: #798d94;
  margin-top: 2px;
}

/* Query Digit Preview Box */
.query-preview-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  margin-top: 14px;
}

.query-digits {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: 0.08em;
}

.query-tag {
  font-size: 0.76rem;
  font-weight: 800;
  color: var(--teal-dark);
  background: rgba(8, 151, 125, 0.15);
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.04em;
}

/* Find Button */
.find-button {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  min-height: 54px;
  padding: 12px 24px;
  background: linear-gradient(135deg, #077966 0%, #08977d 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  font-size: 1.05rem;
  font-weight: 800;
  cursor: pointer;
  box-shadow: var(--shadow-button);
  transition: transform 0.12s ease, box-shadow 0.15s ease;
  margin-top: 24px;
}

.find-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 28px rgba(8, 151, 125, 0.32);
}

.find-button:active {
  transform: scale(0.985);
}

.find-watermark {
  position: absolute;
  left: 12px;
  white-space: nowrap;
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: 1.1rem;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.12);
  pointer-events: none;
  user-select: none;
}

/* Result Presentation Area */
.result-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
  animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.result-card {
  background: var(--surface);
  border: 1px solid var(--teal-border);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3.5vw, 28px);
  box-shadow: var(--shadow-card);
}

.result-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.status-found {
  color: var(--teal);
}

.status-not-found {
  color: #b78103;
}

.status-unsupported {
  color: #c25e00;
}

.result-position-headline {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 800;
  color: var(--ink);
  line-height: 1.25;
  margin: 0 0 8px;
}

.result-position-number {
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 900;
  color: var(--coral);
}

.result-subtitle {
  font-size: 0.95rem;
  color: var(--ink-secondary);
  margin-bottom: 18px;
}

/* Pi Context Snippet Line */
.context-box {
  background: #121e21;
  color: #e5f0ed;
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  margin: 18px 0;
}

.context-header {
  font-size: 0.85rem;
  font-weight: 700;
  color: #799791;
  margin-bottom: 8px;
}

.context-line {
  display: flex;
  align-items: baseline;
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  line-height: 1.4;
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none;
}

.context-line::-webkit-scrollbar {
  display: none;
}

.context-flank {
  color: #738b8b;
  font-weight: 600;
}

.context-highlight {
  color: #ff5a55;
  font-weight: 900;
  background: rgba(217, 66, 62, 0.15);
  padding: 0 4px;
  border-radius: 4px;
}

/* Action Buttons */
.action-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 20px;
}

@media (min-width: 480px) {
  .action-grid {
    grid-template-columns: 1.2fr 1fr;
  }
}

.action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}

.btn-primary-action {
  background: var(--coral);
  color: #ffffff;
  box-shadow: 0 8px 18px rgba(217, 66, 62, 0.25);
}

.btn-primary-action:hover {
  background: var(--coral-hover);
  transform: translateY(-1px);
}

.btn-secondary-action {
  background: var(--surface-muted);
  color: var(--ink);
  border: 1px solid var(--line);
}

.btn-secondary-action:hover {
  background: var(--teal-soft);
  color: var(--teal-dark);
}

/* Live Card Preview Column */
.preview-card-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.preview-label {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--ink-secondary);
  margin-bottom: 12px;
  align-self: flex-start;
}

.rendered-card-image,
.card-preview-img {
  width: 100%;
  max-width: 440px;
  height: auto;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 48px rgba(7, 23, 35, 0.14);
  border: 1px solid var(--line);
  background: #f2faf5;
  object-fit: cover;
}

/* Editorial & SEO Educational Content Sections */
.editorial-wrap {
  border-top: 1px solid var(--line);
  padding-top: 50px;
  margin-top: 40px;
}

.editorial-section {
  margin-bottom: 50px;
}

.editorial-section h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.1rem);
  font-weight: 800;
  color: var(--ink);
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}

.editorial-section p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: #3b4d54;
  margin: 0 0 16px;
}

.math-card {
  background: var(--surface-soft);
  border-left: 4px solid var(--teal);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 20px 24px;
  margin: 24px 0;
}

.math-formula {
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--teal-dark);
  margin-bottom: 8px;
}

/* FAQ Accordion using details & summary */
.faq-grid {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 24px;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.2s;
}

.faq-item[open] {
  border-color: var(--teal-border);
  box-shadow: 0 4px 16px rgba(8, 151, 125, 0.08);
}

.faq-summary {
  padding: 18px 22px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

.faq-summary::-webkit-details-marker {
  display: none;
}

.faq-summary::after {
  content: "+";
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--teal);
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-summary::after {
  transform: rotate(45deg);
}

.faq-content {
  padding: 0 22px 20px;
  color: var(--ink-secondary);
  font-size: 0.98rem;
  line-height: 1.65;
}

/* App Features Promo Banner */
.app-banner {
  background: linear-gradient(135deg, #0d3834 0%, #062421 100%);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: clamp(28px, 5vw, 44px);
  margin-top: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 20px;
  box-shadow: 0 24px 60px rgba(4, 25, 23, 0.35);
}

.app-banner-icon {
  width: 72px;
  height: 72px;
  border-radius: 18px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.3);
}

.app-banner h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.3rem);
  font-weight: 800;
  margin: 0;
}

.app-banner p {
  max-width: 580px;
  color: #b3cdc7;
  font-size: 1.05rem;
  margin: 0;
  line-height: 1.55;
}

/* Hidden canvas */
#shareCanvas {
  display: none;
}

/* Toast message */
.toast-msg {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #071723;
  color: #ffffff;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  opacity: 0;
  transition: all 0.25s ease;
  z-index: 100;
  pointer-events: none;
}

.toast-msg.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}