/* ─── SHARED DESIGN TOKENS (from landing page) ─────────────── */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --warm: #F5E6D3;
  --terracotta: #C4654A;
  --deep: #2D1B14;
  --sage: #7A9E7E;
  --cream: #FDF8F3;
  --gold: #D4A853;
  --muted: #8B7B6B;
  --error: #D94444;
  --success: #4A9E6B;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  color: var(--deep);
  background: var(--cream);
  overflow-x: hidden;
  min-height: 100vh;
}

h1, h2, h3, h4 { font-family: Arial, Helvetica, sans-serif; }

a { color: var(--terracotta); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── NAV ─────────────────────────────────────────────────── */
.app-nav {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  background: rgba(253, 248, 243, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(45, 27, 20, 0.06);
}

.app-nav .logo {
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--terracotta);
  letter-spacing: -0.5px;
  text-decoration: none;
}

.app-nav .logo:hover { text-decoration: none; opacity: 0.9; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--deep);
  text-decoration: none;
}

.nav-links a.active {
  color: var(--terracotta);
}

.nav-tag {
  font-size: 0.75rem;
  color: var(--muted);
  background: rgba(196, 101, 74, 0.08);
  padding: 0.35rem 0.85rem;
  border-radius: 100px;
}

/* ─── LAYOUT ──────────────────────────────────────────────── */
.page {
  padding-top: 5rem;
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.page-header {
  padding: 3rem 0 2rem;
}

.page-header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 0.5rem;
}

.page-header h1 .accent {
  color: var(--terracotta);
}

.page-header .subtitle {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 500px;
  line-height: 1.6;
}

/* ─── FILTERS ─────────────────────────────────────────────── */
.filters {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(45, 27, 20, 0.06);
}

.filter-pill {
  padding: 0.5rem 1.2rem;
  border-radius: 100px;
  border: 1px solid rgba(45, 27, 20, 0.1);
  background: white;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s;
}

.filter-pill:hover {
  border-color: var(--terracotta);
  color: var(--terracotta);
}

.filter-pill.active {
  background: var(--terracotta);
  color: white;
  border-color: var(--terracotta);
}

/* ─── EVENT CARDS GRID ────────────────────────────────────── */
.events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
  padding-bottom: 4rem;
}

.event-card {
  border-radius: 20px;
  background: white;
  border: 1px solid rgba(45, 27, 20, 0.06);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
}

.event-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(45, 27, 20, 0.08);
  text-decoration: none;
}

.event-card-hero {
  height: 160px;
  display: flex;
  align-items: flex-end;
  padding: 1.2rem;
  position: relative;
}

.event-card-hero .friendship-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  padding: 0.35rem 0.8rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--deep);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.event-card-hero .friendship-badge .score {
  color: var(--terracotta);
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
}

.event-card-hero .category-tag {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 600;
  color: white;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.event-card-body {
  padding: 1.5rem;
}

.event-card-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  line-height: 1.3;
}

.event-card-body .org {
  font-size: 0.85rem;
  color: var(--terracotta);
  font-weight: 500;
  margin-bottom: 1rem;
}

.event-card-meta {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.event-card-meta .meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.event-card-meta .meta-icon {
  width: 16px;
  text-align: center;
  font-size: 0.9rem;
}

.event-card-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid rgba(45, 27, 20, 0.04);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.event-card-footer .solo-badge {
  font-size: 0.75rem;
  padding: 0.3rem 0.7rem;
  border-radius: 100px;
  background: rgba(122, 158, 126, 0.12);
  color: var(--sage);
  font-weight: 500;
}

.featured-tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--gold);
  color: white;
  padding: 0.25rem 0.7rem;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ─── EVENT DETAIL PAGE ───────────────────────────────────── */
.event-detail {
  padding-bottom: 4rem;
}

.event-hero-section {
  border-radius: 24px;
  padding: 3rem;
  color: white;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

.event-hero-section .event-category {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  padding: 0.4rem 1rem;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 1.5rem;
}

.event-hero-section h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 0.5rem;
  line-height: 1.1;
}

.event-hero-section .event-org {
  font-size: 1.1rem;
  opacity: 0.85;
  margin-bottom: 2rem;
}

.event-hero-meta {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.event-hero-meta .meta-block {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.event-hero-meta .meta-block .icon {
  font-size: 1.2rem;
}

.event-hero-meta .meta-block .text {
  font-size: 0.9rem;
  opacity: 0.9;
}

.friendship-score-large {
  position: absolute;
  top: 2rem;
  right: 2rem;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(12px);
  padding: 1rem 1.5rem;
  border-radius: 16px;
  text-align: center;
}

.friendship-score-large .score-number {
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 800;
  font-size: 2rem;
  line-height: 1;
}

.friendship-score-large .score-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.8;
  margin-top: 0.2rem;
}

.event-content {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 2rem;
}

.event-description {
  background: white;
  border-radius: 20px;
  padding: 2.5rem;
  border: 1px solid rgba(45, 27, 20, 0.06);
}

.event-description h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.event-description p {
  color: var(--muted);
  line-height: 1.8;
  font-size: 0.95rem;
}

.event-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.event-tags .tag {
  font-size: 0.75rem;
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  background: rgba(45, 27, 20, 0.04);
  color: var(--muted);
  font-weight: 500;
}

/* ─── RSVP SIDEBAR ────────────────────────────────────────── */
.rsvp-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.rsvp-card {
  background: white;
  border-radius: 20px;
  padding: 2rem;
  border: 1px solid rgba(45, 27, 20, 0.06);
}

.rsvp-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.rsvp-card .rsvp-subtitle {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

/* ─── FORMS ───────────────────────────────────────────────── */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--deep);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(45, 27, 20, 0.12);
  border-radius: 12px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.9rem;
  background: var(--cream);
  color: var(--deep);
  transition: border-color 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--terracotta);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

/* Checkbox toggle */
.solo-toggle {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem;
  background: rgba(122, 158, 126, 0.08);
  border-radius: 12px;
  cursor: pointer;
  margin-bottom: 1rem;
  transition: background 0.2s;
}

.solo-toggle:hover {
  background: rgba(122, 158, 126, 0.14);
}

.solo-toggle input[type="checkbox"] {
  display: none;
}

.solo-toggle .toggle-switch {
  width: 44px;
  height: 24px;
  background: rgba(45, 27, 20, 0.15);
  border-radius: 12px;
  position: relative;
  transition: background 0.3s;
  flex-shrink: 0;
}

.solo-toggle .toggle-switch::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: white;
  border-radius: 50%;
  transition: transform 0.3s;
  box-shadow: 0 2px 4px rgba(0,0,0,0.15);
}

.solo-toggle input:checked + .toggle-switch {
  background: var(--sage);
}

.solo-toggle input:checked + .toggle-switch::after {
  transform: translateX(20px);
}

.solo-toggle .toggle-text {
  font-size: 0.9rem;
  font-weight: 500;
}

.solo-toggle .toggle-hint {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.15rem;
}

/* Intro toggle */
.intro-toggle {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem;
  background: rgba(196, 101, 74, 0.06);
  border-radius: 12px;
  cursor: pointer;
  margin-bottom: 1rem;
  transition: background 0.2s;
}

.intro-toggle:hover {
  background: rgba(196, 101, 74, 0.12);
}

.intro-toggle input[type="checkbox"] {
  display: none;
}

.intro-toggle .toggle-switch {
  width: 44px;
  height: 24px;
  background: rgba(45, 27, 20, 0.15);
  border-radius: 12px;
  position: relative;
  transition: background 0.3s;
  flex-shrink: 0;
}

.intro-toggle .toggle-switch::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: white;
  border-radius: 50%;
  transition: transform 0.3s;
  box-shadow: 0 2px 4px rgba(0,0,0,0.15);
}

.intro-toggle input:checked + .toggle-switch {
  background: var(--terracotta);
}

.intro-toggle input:checked + .toggle-switch::after {
  transform: translateX(20px);
}

.intro-toggle .toggle-text {
  font-size: 0.9rem;
  font-weight: 500;
}

.intro-toggle .toggle-hint {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.15rem;
}

/* ─── BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.8rem;
  border-radius: 12px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--terracotta);
  color: white;
}

.btn-primary:hover {
  background: #B85540;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(196, 101, 74, 0.3);
}

.btn-primary:disabled {
  background: var(--muted);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-secondary {
  background: white;
  color: var(--deep);
  border: 1px solid rgba(45, 27, 20, 0.12);
}

.btn-secondary:hover {
  border-color: var(--terracotta);
  color: var(--terracotta);
}

.btn-full {
  width: 100%;
}

/* ─── MATCH REVEAL ────────────────────────────────────────── */
.match-reveal {
  background: linear-gradient(135deg, var(--sage), #5B8A5F);
  border-radius: 20px;
  padding: 2rem;
  color: white;
  text-align: center;
}

.match-reveal h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.match-reveal .match-name {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 2rem;
  font-weight: 800;
  margin: 0.5rem 0;
}

.match-reveal p {
  opacity: 0.9;
  font-size: 0.9rem;
}

.match-pending {
  background: rgba(122, 158, 126, 0.08);
  border: 2px dashed rgba(122, 158, 126, 0.3);
  border-radius: 20px;
  padding: 2rem;
  text-align: center;
}

.match-pending h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--sage);
  margin-bottom: 0.5rem;
}

.match-pending p {
  font-size: 0.9rem;
  color: var(--muted);
}

.empty-state {
  text-align: center;
  padding: 2rem;
  color: var(--muted);
  font-size: 0.9rem;
}

/* ─── FOLLOW-UP PAGE ──────────────────────────────────────── */
.follow-up-container {
  max-width: 640px;
  margin: 0 auto;
  padding-bottom: 4rem;
}

.follow-up-header {
  text-align: center;
  padding: 3rem 0;
}

.follow-up-header .event-name {
  font-size: 0.9rem;
  color: var(--terracotta);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.follow-up-header h1 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 0.5rem;
}

.follow-up-header p {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.6;
}

.follow-up-form {
  background: white;
  border-radius: 20px;
  padding: 2.5rem;
  border: 1px solid rgba(45, 27, 20, 0.06);
}

/* ─── SUCCESS STATE ───────────────────────────────────────── */
.success-state {
  text-align: center;
  padding: 3rem 2rem;
}

.success-state .success-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.success-state h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.success-state p {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.6;
  max-width: 400px;
  margin: 0 auto 2rem;
}

/* ─── ALERTS ──────────────────────────────────────────────── */
.alert {
  padding: 0.8rem 1.2rem;
  border-radius: 12px;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.alert-success {
  background: rgba(74, 158, 107, 0.1);
  color: var(--success);
  border: 1px solid rgba(74, 158, 107, 0.2);
}

.alert-error {
  background: rgba(217, 68, 68, 0.1);
  color: var(--error);
  border: 1px solid rgba(217, 68, 68, 0.2);
}

/* ─── LOADING ─────────────────────────────────────────────── */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.loading::before {
  content: '';
  width: 20px;
  height: 20px;
  border: 2px solid rgba(196, 101, 74, 0.2);
  border-top-color: var(--terracotta);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-right: 0.8rem;
}

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

/* ─── BACK LINK ───────────────────────────────────────────── */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 1.5rem;
  transition: color 0.2s;
}

.back-link:hover {
  color: var(--terracotta);
  text-decoration: none;
}

/* ─── FOOTER ──────────────────────────────────────────────── */
.app-footer {
  padding: 2rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
  border-top: 1px solid rgba(45, 27, 20, 0.06);
  margin-top: 2rem;
}

.app-footer span {
  color: var(--terracotta);
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
}

/* ─── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 900px) {
  .event-content {
    grid-template-columns: 1fr;
  }
  .friendship-score-large {
    position: static;
    display: inline-block;
    margin-top: 1.5rem;
  }
  .events-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .app-nav {
    padding: 0.8rem 1.2rem;
  }
  .container {
    padding: 0 1.2rem;
  }
  .page-header {
    padding: 2rem 0 1.5rem;
  }
  .event-hero-section {
    padding: 2rem;
    border-radius: 16px;
  }
  .event-hero-meta {
    gap: 1rem;
    flex-direction: column;
  }
  .nav-links {
    gap: 1rem;
  }
  .rsvp-card, .event-description {
    padding: 1.5rem;
  }
}

/* ── Referral Modal ───────────────────────────────────────── */
.referral-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(45,27,20,0.55);
  backdrop-filter: blur(4px);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.referral-modal-overlay.open {
  display: flex;
}
.referral-modal {
  background: var(--cream);
  border-radius: 24px;
  padding: 2.5rem;
  width: 100%;
  max-width: 480px;
  position: relative;
  box-shadow: 0 24px 60px rgba(45,27,20,0.18);
  max-height: 90vh;
  overflow-y: auto;
  text-align: center;
}
.referral-modal-close {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  background: rgba(45,27,20,0.07);
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  transition: background 0.2s;
}
.referral-modal-close:hover {
  background: rgba(45,27,20,0.12);
}
.referral-modal-icon {
  font-size: 2.8rem;
  margin-bottom: 1rem;
}
.referral-modal h3 {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  color: var(--deep);
}
.referral-modal > p {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 1.75rem;
}
.referral-url-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 1.25rem;
}
.referral-url-input {
  flex: 1;
  padding: 0.7rem 0.9rem;
  border: 1.5px solid rgba(45,27,20,0.12);
  border-radius: 10px;
  font-size: 0.82rem;
  font-family: Arial, Helvetica, sans-serif;
  background: rgba(45,27,20,0.03);
  color: var(--deep);
  outline: none;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.btn-referral-copy {
  padding: 0.7rem 1rem;
  background: var(--deep);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  font-family: Arial, Helvetica, sans-serif;
  transition: background 0.2s;
  min-width: 80px;
}
.btn-referral-copy:hover {
  background: #4a2a1a;
}
.btn-referral-copy.copied {
  background: var(--success);
}
.referral-social-btns {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.btn-social {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  width: 100%;
  font-family: Arial, Helvetica, sans-serif;
  transition: all 0.2s;
  text-decoration: none;
}
.btn-facebook {
  background: #1877F2;
  color: white;
}
.btn-facebook:hover {
  background: #166FE5;
  text-decoration: none;
}
.btn-sms {
  background: var(--warm);
  color: var(--deep);
  border: 1.5px solid rgba(45,27,20,0.1);
}
.btn-sms:hover {
  background: #EDDDD0;
  text-decoration: none;
}
.referral-hint {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 1rem;
}

@media (max-width: 480px) {
  .referral-modal {
    padding: 2rem 1.5rem;
    border-radius: 20px;
  }
  .referral-modal h3 {
    font-size: 1.2rem;
  }
  .btn-social {
    padding: 0.9rem 1rem;
    font-size: 0.95rem;
  }
}