/* ── Vynce Design System ────────────────────────────── */
/* Based on Stitch design: Electric Connection theme     */
/* ───────────────────────────────────────────────────── */

:root {
  /* ── Colors ── */
  --primary: #b3263a;
  --primary-container: #ff5f6d;
  --on-primary: #ffffff;
  --on-primary-container: #650016;
  --primary-fixed: #ffdada;
  --primary-fixed-dim: #ffb3b4;
  --on-primary-fixed: #40000b;
  --on-primary-fixed-variant: #910525;
  --inverse-primary: #ffb3b4;

  --secondary: #5b5d72;
  --on-secondary: #ffffff;
  --secondary-container: #e0e0fa;
  --on-secondary-container: #616378;
  --secondary-fixed: #e0e0fa;
  --secondary-fixed-dim: #c4c5dd;
  --on-secondary-fixed: #181a2c;
  --on-secondary-fixed-variant: #444559;

  --tertiary: #006c4f;
  --on-tertiary: #ffffff;
  --tertiary-container: #00ab7f;
  --on-tertiary-container: #003726;
  --tertiary-fixed: #67fcc6;
  --tertiary-fixed-dim: #44dfab;
  --on-tertiary-fixed: #002116;
  --on-tertiary-fixed-variant: #00513a;

  --error: #ba1a1a;
  --on-error: #ffffff;
  --error-container: #ffdad6;
  --on-error-container: #93000a;

  --surface: #f8f9fa;
  --surface-dim: #d9dadb;
  --surface-bright: #f8f9fa;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f3f4f5;
  --surface-container: #edeeef;
  --surface-container-high: #e7e8e9;
  --surface-container-highest: #e1e3e4;
  --on-surface: #191c1d;
  --on-surface-variant: #594141;
  --inverse-surface: #2e3132;
  --inverse-on-surface: #f0f1f2;
  --surface-variant: #e1e3e4;

  --outline: #8d7070;
  --outline-variant: #e1bebe;
  --surface-tint: #b3263a;

  --background: #f8f9fa;
  --on-background: #191c1d;

  /* Sunset gradient */
  --gradient: linear-gradient(135deg, #ff5f6d, #ff8a5c);
  --gradient-primary: linear-gradient(135deg, #b3263a, #ff5f6d);

  /* ── Typography ── */
  --font-headline: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* ── Spacing (4px baseline) ── */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --container-margin: 20px;
  --gutter: 12px;

  /* ── Border Radius ── */
  --radius-sm: 4px;
  --radius: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* ── Elevation ── */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.10);
  --shadow-xl: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-floating: 0 10px 30px rgba(179,38,58,0.15);

  /* ── Bottom Nav ── */
  --bottom-nav-height: 80px;
}

/* ── Reset & Base ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  color: var(--on-surface);
  background: var(--background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100dvh;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea { font-family: inherit; }
a { text-decoration: none; color: inherit; }

/* ── Material Icons ── */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  display: inline-block;
  vertical-align: middle;
  user-select: none;
}

/* ── Typography Utilities ── */
.headline-xl {
  font-family: var(--font-headline);
  font-size: 40px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.headline-lg {
  font-family: var(--font-headline);
  font-size: 32px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.headline-lg-mobile {
  font-family: var(--font-headline);
  font-size: 28px;
  font-weight: 700;
  line-height: 1.21;
}
.headline-md {
  font-family: var(--font-headline);
  font-size: 24px;
  font-weight: 600;
  line-height: 1.33;
}
.body-lg {
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 400;
  line-height: 1.55;
}
.body-md {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
}
.label-md {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.43;
  letter-spacing: 0.05em;
}
.caption {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.33;
}

/* ── Glass Effect ── */
.glass {
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.3);
}
.glass-strong {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

/* ── Scrollbar ── */
.hide-scrollbar::-webkit-scrollbar { display: none; }
.hide-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }

/* ── Button Styles ── */
.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 56px;
  padding: 0 24px;
  border-radius: var(--radius-full);
  background: var(--gradient);
  color: white;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-floating);
  transition: transform 0.2s, box-shadow 0.2s;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 12px 36px rgba(179,38,58,0.2); }
.btn-primary:active { transform: scale(0.97); }
.btn-primary.disabled { opacity: 0.5; pointer-events: none; }

.btn-secondary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 56px;
  padding: 0 24px;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--on-surface);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  border: 2px solid var(--outline-variant);
  cursor: pointer;
  transition: transform 0.2s, border-color 0.2s;
}
.btn-secondary:hover { border-color: var(--outline); }
.btn-secondary:active { transform: scale(0.97); }

.btn-ghost {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 8px 16px;
  border-radius: var(--radius);
  color: var(--on-surface-variant);
  font-size: 14px;
  font-weight: 500;
  transition: background 0.2s;
}
.btn-ghost:hover { background: var(--surface-container); }

/* ── Chip Styles ── */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  background: var(--surface-container);
  color: var(--on-surface-variant);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
}
.chip.active {
  background: var(--primary);
  color: var(--on-primary);
}
.chip:hover:not(.active) { background: var(--surface-container-high); }

/* ── Card Styles ── */
.card {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--outline-variant);
  overflow: hidden;
}

/* ── Input Styles ── */
.input-field {
  width: 100%;
  padding: 16px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--outline-variant);
  background: var(--surface-container-lowest);
  font-size: 16px;
  color: var(--on-surface);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.input-field::placeholder { color: var(--on-surface-variant); opacity: 0.6; }
.input-field:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(179,38,58,0.15);
}

/* ── Search Bar ── */
.search-bar {
  position: relative;
  width: 100%;
}
.search-bar input {
  width: 100%;
  height: 48px;
  padding: 0 16px 0 48px;
  border-radius: var(--radius-full);
  border: 1px solid var(--outline-variant);
  background: var(--surface-container-low);
  font-size: 16px;
  outline: none;
  transition: border-color 0.2s;
}
.search-bar input:focus { border-color: var(--primary); }
.search-bar .icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--on-surface-variant);
}

/* ── Top App Bar ── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--surface);
  border-bottom: 1px solid var(--outline-variant);
  box-shadow: 0 1px 4px rgba(0,0,0,0.03);
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px var(--container-margin);
  max-width: 1280px;
  margin: 0 auto;
}
.topbar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}
.topbar-brand .icon { font-size: 32px; color: var(--primary); }
.topbar-brand h1 {
  font-family: var(--font-headline);
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
}
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ── Bottom Navigation ── */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--bottom-nav-height);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-around;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(0,0,0,0.06);
  padding-bottom: env(safe-area-inset-bottom, 0);
}
.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 4px 12px;
  color: var(--on-surface-variant);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.2s;
  border: none;
  background: none;
  min-width: 56px;
}
.nav-item .icon { font-size: 28px; font-variation-settings: 'FILL' 0; }
.nav-item.active { color: var(--primary); }
.nav-item.active .icon { font-variation-settings: 'FILL' 1; }

/* ── App Container ── */
.app-container {
  min-height: 100dvh;
  padding-bottom: var(--bottom-nav-height);
}
.screen {
  display: none;
  min-height: 100%;
}
.screen.active {
  display: block;
}

/* ── Profile Card (Discover) ── */
.profile-card {
  position: relative;
  width: 100%;
  max-width: 400px;
  aspect-ratio: 3/4;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--outline-variant);
  cursor: grab;
  user-select: none;
  transition: transform 0.3s ease;
}
.profile-card:active { cursor: grabbing; }
.profile-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.profile-card .gradient-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 60%);
}
.profile-card .card-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--primary-container);
  color: var(--on-primary-container);
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}
.profile-card .card-badge .icon { font-size: 16px; font-variation-settings: 'FILL' 1; }
.profile-card .card-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px;
  color: white;
}
.profile-card .card-info h2 { font-family: var(--font-headline); font-size: 28px; font-weight: 700; }
.profile-card .card-info p { font-size: 16px; opacity: 0.9; margin-top: 4px; }
.profile-card .card-info .tags { display: flex; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
.profile-card .card-info .tags span {
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(4px);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── Swipe Actions ── */
.swipe-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 24px;
}
.swipe-btn {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  border: none;
}
.swipe-btn:active { transform: scale(0.9); }
.swipe-btn.pass {
  background: var(--surface-container-lowest);
  border: 2px solid var(--outline);
  color: var(--on-surface-variant);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
.swipe-btn.super-like {
  background: var(--tertiary-container);
  color: var(--on-tertiary-container);
  box-shadow: 0 4px 12px rgba(0,108,79,0.2);
}
.swipe-btn.like {
  background: var(--gradient);
  color: white;
  box-shadow: var(--shadow-floating);
}
.swipe-btn .icon { font-size: 32px; }

/* ── Profile Card Grid (Desktop) ── */
.profile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--gutter);
}
.profile-grid-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface-container-lowest);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--outline-variant);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}
.profile-grid-item:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.profile-grid-item img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.profile-grid-item .info { padding: 12px; }
.profile-grid-item .info h3 { font-size: 16px; font-weight: 600; }
.profile-grid-item .info p { font-size: 13px; color: var(--on-surface-variant); margin-top: 2px; }

/* ── Group Card ── */
.group-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface-container-lowest);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--outline-variant);
  transition: transform 0.2s;
}
.group-card:hover { transform: translateY(-2px); }
.group-card .cover { width: 100%; height: 140px; object-fit: cover; }
.group-card .body { padding: 16px; }
.group-card .body h3 { font-size: 18px; font-weight: 600; margin-bottom: 4px; }
.group-card .body p { font-size: 14px; color: var(--on-surface-variant); }
.group-card .footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-top: 1px solid var(--surface-variant);
  font-size: 13px;
  color: var(--on-surface-variant);
}

/* ── Event Card ── */
.event-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface-container-lowest);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--outline-variant);
  display: flex;
  gap: 16px;
  padding: 16px;
  transition: transform 0.2s;
}
.event-card:hover { transform: translateY(-2px); }
.event-card .date-badge {
  min-width: 56px;
  text-align: center;
  padding: 8px;
  border-radius: var(--radius);
  background: var(--primary-fixed);
}
.event-card .date-badge .month { font-size: 11px; font-weight: 700; text-transform: uppercase; color: var(--primary); }
.event-card .date-badge .day { font-size: 24px; font-weight: 700; color: var(--on-primary-fixed); }
.event-card .body { flex: 1; }
.event-card .body h3 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.event-card .body p { font-size: 14px; color: var(--on-surface-variant); }
.event-card .body .meta { display: flex; gap: 12px; margin-top: 8px; font-size: 13px; color: var(--on-surface-variant); }
.event-card .body .meta span { display: flex; align-items: center; gap: 4px; }

/* ── Message Item ── */
.msg-item {
  display: flex;
  gap: 12px;
  padding: 12px var(--container-margin);
  cursor: pointer;
  transition: background 0.15s;
}
.msg-item:hover { background: var(--surface-container-low); }
.msg-item .avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.msg-item .content { flex: 1; min-width: 0; }
.msg-item .content .top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2px;
}
.msg-item .content .top .name { font-size: 16px; font-weight: 600; }
.msg-item .content .top .time { font-size: 12px; color: var(--on-surface-variant); }
.msg-item .content .preview {
  font-size: 14px;
  color: var(--on-surface-variant);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.msg-item .unread {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
  margin-top: 6px;
}

/* ── Chat Bubble ── */
.chat-bubble {
  max-width: 80%;
  padding: 12px 16px;
  border-radius: var(--radius-lg);
  font-size: 15px;
  line-height: 1.4;
  margin-bottom: 8px;
}
.chat-bubble.sent {
  background: var(--primary);
  color: var(--on-primary);
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}
.chat-bubble.received {
  background: var(--surface-container);
  color: var(--on-surface);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

/* ── Modal / Overlay ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(8px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease;
}
.modal-content {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-xl);
  padding: 32px;
  max-width: 400px;
  width: 90%;
  box-shadow: var(--shadow-xl);
  animation: slideUp 0.3s ease;
}

/* ── Animations ── */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { transform: translateY(30px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
@keyframes slideDown { from { transform: translateY(-10px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* ── Loading Skeleton ── */
.skeleton {
  background: linear-gradient(90deg, var(--surface-container) 25%, var(--surface-container-high) 50%, var(--surface-container) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius);
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ── Responsive ── */
@media (min-width: 768px) {
  :root { --container-margin: 64px; }
  .bottom-nav { display: none; }
  .desktop-only { display: flex !important; }
  .mobile-only { display: none !important; }
}
@media (max-width: 767px) {
  .desktop-only { display: none !important; }
  .mobile-only { display: flex !important; }
}

/* ── Utility ── */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-xs { gap: 4px; }
.gap-sm { gap: 8px; }
.gap-md { gap: 16px; }
.gap-lg { gap: 24px; }
.gap-xl { gap: 32px; }
.p-sm { padding: 8px; }
.p-md { padding: 16px; }
.p-lg { padding: 24px; }
.px-container { padding-left: var(--container-margin); padding-right: var(--container-margin); }
.py-md { padding-top: 16px; padding-bottom: 16px; }
.mt-sm { margin-top: 8px; }
.mt-md { margin-top: 16px; }
.mt-lg { margin-top: 24px; }
.mb-md { margin-bottom: 16px; }
.mb-lg { margin-bottom: 24px; }
.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.text-on-surface-variant { color: var(--on-surface-variant); }
.w-full { width: 100%; }
.max-w-container { max-width: 1280px; margin-left: auto; margin-right: auto; }
.relative { position: relative; }
.overflow-hidden { overflow: hidden; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Empty State ── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  text-align: center;
  gap: 12px;
}
.empty-state .icon { font-size: 64px; color: var(--on-surface-variant); opacity: 0.4; }
.empty-state h3 { font-size: 20px; font-weight: 600; color: var(--on-surface); }
.empty-state p { font-size: 14px; color: var(--on-surface-variant); max-width: 280px; }

/* ── Desktop Layout ── */
.desktop-layout {
  display: flex;
  min-height: calc(100vh - 64px);
}
.desktop-sidebar {
  width: 320px;
  border-right: 1px solid var(--outline-variant);
  background: var(--surface);
  flex-shrink: 0;
  overflow-y: auto;
}
.desktop-main {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg) var(--container-margin);
}

/* ── Category Pills Row ── */
.category-pills {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 0;
}
.category-pills::-webkit-scrollbar { display: none; }

/* ── Profile Strength Bar ── */
.strength-bar {
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--surface-variant);
  overflow: hidden;
}
.strength-bar .fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: var(--gradient);
  transition: width 0.5s ease;
}

/* ── Interest Tags ── */
.interest-tag {
  display: inline-flex;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--surface-container);
  color: var(--on-surface-variant);
  font-size: 13px;
  font-weight: 500;
}
.interest-tag.active {
  background: var(--primary);
  color: var(--on-primary);
}

/* ── Match Modal ── */
.match-modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: var(--gradient);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  animation: fadeIn 0.3s ease;
  color: white;
  text-align: center;
}
.match-modal h2 {
  font-family: var(--font-headline);
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.match-modal .avatars {
  display: flex;
  align-items: center;
}
.match-modal .avatars img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px solid white;
  margin: 0 -10px;
  object-fit: cover;
}