/* Design Tokens & Theme Variables */
:root {
  --color-sage: #7A9A7A;
  --color-sage-dark: #5A735A;
  --color-sage-light: #D4E2D4;
  --color-sage-pale: #F3F7F3;
  --color-cream: #FAF9F6;
  --color-gold: #C29D6E;
  --color-gold-dark: #A47C5C;
  --color-text-main: #2C352C;
  --color-text-muted: #5F6E5F;
  --color-error: #C27065;
  --color-error-bg: #FDF1EF;
  --color-white: #FFFFFF;
  
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  
  --shadow-sm: 0 2px 8px rgba(90, 115, 90, 0.04);
  --shadow-md: 0 8px 20px rgba(90, 115, 90, 0.06);
  --shadow-lg: 0 16px 40px rgba(44, 53, 44, 0.08);
  
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-sans);
  color: var(--color-text-main);
  background-color: #E6EDE6;
  background-image: linear-gradient(135deg, #E2ECE2 0%, #D4DFD4 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 20px;
  line-height: 1.5;
}

/* Main Wrapper */
.portal-wrapper {
  width: 100%;
  max-width: 960px;
  margin: auto;
}

/* Grid Layout (The Portal Card) */
.wedding-portal {
  background-color: var(--color-cream);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.8);
  display: flex;
  overflow: hidden;
  min-height: 580px;
  transition: var(--transition-smooth);
}

.portal-left, .portal-right {
  width: 50%;
  padding: 40px;
}

.portal-left {
  border-right: 1px solid rgba(122, 154, 122, 0.15);
  display: flex;
  flex-direction: column;
}

.portal-right {
  background-color: var(--color-white);
  display: flex;
  flex-direction: column;
}

/* Left Panel Elements */
.venue-sketch-container {
  width: calc(100% + 80px);
  height: 185px;
  margin-top: -40px;
  margin-left: -40px;
  margin-right: -40px;
  margin-bottom: 24px;
  overflow: hidden;
  opacity: 0.95;
  border-bottom: 1px solid rgba(122, 154, 122, 0.15);
}

.venue-sketch {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 70%;
}

.portal-subtitle {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-sage-dark);
  margin-bottom: 4px;
  text-align: center;
  margin-right: -0.25em; /* Compensate for letter-spacing to ensure perfect centering */
}

.portal-title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 400;
  color: var(--color-text-main);
  margin-bottom: 12px;
  line-height: 1.1;
  text-align: center;
}

.portal-meta {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 20px;
  align-items: center;
}

.divider {
  height: 1px;
  background-color: rgba(122, 154, 122, 0.15);
  margin: 15px 0 25px;
  width: 100%;
}

.rsvp-card-container {
  flex-grow: 1;
}

/* Right Panel Tabs System */
.tabs-nav {
  display: flex;
  border-bottom: 2px solid var(--color-sage-pale);
  margin-bottom: 30px;
  gap: 12px;
}

.tab-btn {
  background: none;
  border: none;
  padding: 10px 4px 12px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  cursor: pointer;
  position: relative;
  transition: var(--transition-smooth);
}

.tab-btn:hover {
  color: var(--color-sage-dark);
}

.tab-btn.active {
  color: var(--color-sage-dark);
  font-weight: 600;
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-sage);
  border-radius: 2px;
}

.tabs-body {
  flex-grow: 1;
  position: relative;
}

.tab-content {
  display: none;
  opacity: 0;
  transform: translateY(8px);
  transition: var(--transition-smooth);
}

.tab-content.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.tab-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--color-sage-dark);
  margin-bottom: 20px;
  font-weight: 600;
}

/* Compact Timeline Details */
.compact-timeline {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.timeline-row {
  display: flex;
  align-items: baseline;
  border-bottom: 1px solid var(--color-sage-pale);
  padding-bottom: 10px;
}

.timeline-row:last-child {
  border-bottom: none;
}

.timeline-row .time {
  width: 70px;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-gold-dark);
}

.timeline-row .event {
  font-size: 0.9rem;
  color: var(--color-text-main);
}

/* Info blocks and lists inside tabs */
.info-block h3 {
  font-size: 1.1rem;
  font-family: var(--font-serif);
  color: var(--color-sage-dark);
  margin-bottom: 8px;
}

.info-block p {
  font-size: 0.88rem;
  color: var(--color-text-main);
  line-height: 1.6;
}

.text-sm {
  font-size: 0.8rem !important;
  color: var(--color-text-muted) !important;
}

.compact-list {
  list-style: none;
}

.compact-list li {
  margin-bottom: 12px;
  font-size: 0.88rem;
}

.compact-list li strong {
  display: block;
  font-size: 0.9rem;
  color: var(--color-text-main);
}

.compact-list li span {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  display: block;
  line-height: 1.4;
}

.taxi-warning {
  font-size: 0.78rem;
  color: var(--color-error);
  background-color: var(--color-error-bg);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  border-left: 3px solid var(--color-error);
}

.inline-taxis li {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px dashed var(--color-sage-light);
  padding-bottom: 6px;
  margin-bottom: 8px;
}

.inline-taxis li span {
  display: inline;
  color: var(--color-text-muted);
}

.inline-taxis li strong {
  display: inline;
  color: var(--color-sage-dark);
}

/* Step Dialogues & Card Content (Left pane) */
.dialog-box {
  display: none;
  opacity: 0;
  transform: translateY(10px);
  transition: var(--transition-smooth);
}

.dialog-box.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.dialog-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--color-sage-dark);
  margin-bottom: 8px;
}

.dialog-desc {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
  line-height: 1.5;
}

/* Inputs styling */
.input-group {
  margin-bottom: 18px;
}

.input-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text-main);
}

.text-input, .select-input, .textarea-input {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid #D1D9D1;
  background-color: var(--color-white);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--color-text-main);
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-sm);
  outline: none;
}

.text-uppercase {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
}

.text-input:focus, .select-input:focus, .textarea-input:focus {
  border-color: var(--color-sage);
  box-shadow: 0 0 0 3px rgba(122, 154, 122, 0.15), var(--shadow-sm);
}

.select-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23626E62' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 10px;
  padding-right: 32px;
  cursor: pointer;
}

.textarea-input {
  resize: vertical;
  min-height: 70px;
}

/* Code verification Dialog specific inputs */
#code-dialog .text-input {
  text-align: center;
  font-size: 1.15rem;
  letter-spacing: 0.1em;
  font-weight: 600;
  padding: 12px;
  border-color: var(--color-gold);
}

#code-dialog .text-input:focus {
  border-color: var(--color-gold-dark);
  box-shadow: 0 0 0 3px rgba(194, 157, 110, 0.15);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  font-family: var(--font-sans);
  text-decoration: none;
  position: relative;
  width: 100%;
}

.btn-primary {
  background-color: var(--color-sage-dark);
  color: var(--color-white);
  box-shadow: 0 3px 8px rgba(90, 115, 90, 0.15);
}

.btn-primary:hover {
  background-color: #495e49;
  box-shadow: 0 5px 12px rgba(90, 115, 90, 0.25);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-link {
  background: none;
  border: none;
  color: var(--color-gold-dark);
  text-decoration: underline;
  font-size: 0.8rem;
  cursor: pointer;
  padding: 2px 4px;
  font-family: var(--font-sans);
  transition: var(--transition-smooth);
}

.btn-link:hover {
  color: var(--color-sage-dark);
}

.btn-full {
  width: 100%;
}

.spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--color-white);
  animation: spin 0.8s linear infinite;
  margin-left: 10px;
}

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

.error-msg {
  display: block;
  font-size: 0.8rem;
  color: var(--color-error);
  margin-top: 4px;
  min-height: 16px;
}

/* Welcome RSVP form styling */
.welcome-header {
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-sage-pale);
}

.welcome-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--color-sage-dark);
}

.welcome-subtitle {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.form-section {
  margin-bottom: 20px;
}

.attendance-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.attendance-option {
  cursor: pointer;
}

.attendance-option input[type="radio"] {
  display: none;
}

.attendance-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 16px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid #D1D9D1;
  background-color: var(--color-white);
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.attendance-box .title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-text-main);
  font-family: var(--font-serif);
}

.attendance-box .subtitle {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  font-weight: 400;
  margin-top: 1px;
}

.attendance-box .icon {
  font-size: 1.35rem;
  margin-bottom: 2px;
}

.attendance-option:hover .attendance-box {
  border-color: var(--color-sage);
  transform: translateY(-1px);
}

/* Radio button checks selection styling */
.attendance-option input[type="radio"]:checked + .attendance-box.positive {
  background-color: var(--color-sage-pale);
  border-color: var(--color-sage);
  box-shadow: 0 0 0 2px rgba(122, 154, 122, 0.1), var(--shadow-md);
}

.attendance-option input[type="radio"]:checked + .attendance-box.positive .title {
  color: var(--color-sage-dark);
}

.attendance-option input[type="radio"]:checked + .attendance-box.positive .subtitle {
  color: #556c55;
}

.attendance-option input[type="radio"]:checked + .attendance-box.negative {
  background-color: #FDF6F5;
  border-color: var(--color-error);
  box-shadow: 0 0 0 2px rgba(194, 112, 101, 0.1), var(--shadow-md);
}

.attendance-option input[type="radio"]:checked + .attendance-box.negative .title {
  color: #9C453C;
}

.attendance-option input[type="radio"]:checked + .attendance-box.negative .subtitle {
  color: #b05c54;
}

/* Conditional detail section styling */
.conditional-details {
  display: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.conditional-details.active {
  display: block;
  opacity: 1;
  animation: fadeIn 0.3s ease-out forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.divider-top {
  border-top: 1px solid var(--color-sage-pale);
  padding-top: 18px;
  margin-top: 20px;
}

.food-card {
  background-color: var(--color-sage-pale);
  border: 1px solid rgba(122, 154, 122, 0.15);
  padding: 18px;
  border-radius: var(--radius-md);
  margin-bottom: 18px;
  box-shadow: var(--shadow-sm);
}

.food-card-title {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--color-sage-dark);
  margin-bottom: 12px;
  border-bottom: 1px dashed rgba(122, 154, 122, 0.2);
  padding-bottom: 6px;
  font-weight: 600;
}

.guests-container {
  margin-top: 12px;
}

.guest-item-card {
  margin-bottom: 16px;
  border-left: 2px solid var(--color-gold);
}

.message-box {
  background-color: var(--color-sage-pale);
  border-left: 3px solid var(--color-sage);
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Success details styling */
.success-icon {
  font-size: 3rem;
  margin-bottom: 15px;
  animation: popIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes popIn {
  from { opacity: 0; transform: scale(0.6); }
  to { opacity: 1; transform: scale(1); }
}

.dialog-note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* Footer elements styling */
.footer-simple {
  text-align: center;
  padding: 24px;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  width: 100%;
}

.btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.btn:disabled .spinner {
  display: inline-block;
}

/* Responsive queries */
@media (max-width: 768px) {
  body {
    padding: 10px;
  }
  .wedding-portal {
    flex-direction: column;
    min-height: auto;
  }
  .portal-left, .portal-right {
    width: 100%;
    padding: 28px 20px;
  }
  .portal-left {
    border-right: none;
    border-bottom: 1px solid rgba(122, 154, 122, 0.15);
  }
  .portal-title {
    font-size: 2.1rem;
  }
  .tabs-nav {
    margin-bottom: 20px;
  }
}

/* Known Guest Attendance Toggle Button styling */
.toggle-buttons-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 4px;
}

.toggle-btn-label {
  cursor: pointer;
}

.toggle-btn-label input[type="radio"] {
  display: none;
}

.toggle-btn-label span {
  display: block;
  padding: 8px 12px;
  border: 1px solid #D1D9D1;
  border-radius: var(--radius-sm);
  background-color: var(--color-white);
  text-align: center;
  font-size: 0.82rem;
  font-weight: 500;
  transition: var(--transition-smooth);
  color: var(--color-text-main);
}

.toggle-btn-label:hover span {
  border-color: var(--color-sage);
}

.toggle-btn-label input[type="radio"]:checked + span {
  background-color: var(--color-sage-pale);
  border-color: var(--color-sage);
  color: var(--color-sage-dark);
  font-weight: 600;
}

.toggle-btn-label input[type="radio"][value="No"]:checked + span {
  background-color: #FDF6F5;
  border-color: var(--color-error);
  color: #9C453C;
}

.known-guest-details-section {
  margin-top: 14px;
  animation: fadeIn 0.25s ease-out forwards;
}

.submit-notice-text {
  font-size: 0.76rem;
  color: var(--color-text-muted);
  margin-bottom: 12px;
  line-height: 1.35;
}