/* ============================================================
   TripCollective — Global Design System
   Aurora Palette · DM Sans + Cormorant Garamond
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300&family=DM+Sans:wght@300;400;500&display=swap');

/* ── CSS VARIABLES ── */
:root {
  /* Core Palette */
  --primary:            #E8856A;   /* Sunset Coral */
  --primary-contrast:   #FFFFFF;
  --secondary:          #EBA8B8;   /* Rose Blush */
  --secondary-contrast: #2C2038;
  --accent:             #A89FC8;   /* Soft Lavender */
  --accent-foreground:  #2C2038;
  --periwinkle:         #8FA3D4;   /* Periwinkle Blue */
  --peach:              #F2B08A;   /* Warm Peach */

  /* Surfaces */
  --background:         #FDF8F5;   /* Warm Cream */
  --surface:            #FFFFFF;
  --muted:              #F0EAF7;   /* Lavender Tint */

  /* Text */
  --text:               #2C2038;   /* Deep Plum */
  --text-muted:         #9B8FAA;   /* Muted Mauve */

  /* Borders & Inputs */
  --border:             #E8DFF0;
  --input:              #F0EAF7;
  --ring:               #8FA3D4;

  /* Semantic */
  --success:            #2BA176;
  --destructive:        #DD382C;
  --alert:              #F2B08A;

  /* Status Colors */
  --status-upcoming:    #E8856A;
  --status-ongoing:     #EBA8B8;
  --status-planning:    #A89FC8;
  --status-completed:   #2BA176;

  /* Typography */
  --font-body:          'DM Sans', sans-serif;
  --font-display:       'Cormorant Garamond', serif;

  /* Spacing */
  --nav-height:         64px;
  --page-max-width:     1200px;
  --page-padding:       40px;
  --radius-sm:          8px;
  --radius-md:          14px;
  --radius-lg:          20px;
  --radius-full:        999px;

  /* Shadows */
  --shadow-sm:          0 2px 12px rgba(44,32,56,0.06);
  --shadow-md:          0 6px 24px rgba(44,32,56,0.09);
  --shadow-lg:          0 16px 48px rgba(44,32,56,0.12);
  --shadow-primary:     0 6px 20px rgba(232,133,106,0.3);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--background);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
button { font-family: var(--font-body); cursor: pointer; }
a { text-decoration: none; color: inherit; }

/* ── BACKGROUND AMBIENCE ── */
.bg-ambience {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.bg-ambience::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  top: -150px; right: -150px;
  background: radial-gradient(circle, rgba(235,168,184,0.2), transparent 65%);
  border-radius: 50%;
}

.bg-ambience::after {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  bottom: 5%; left: -100px;
  background: radial-gradient(circle, rgba(168,159,200,0.18), transparent 65%);
  border-radius: 50%;
}

/* ── LAYOUT ── */
.page-wrapper {
  position: relative;
  z-index: 1;
}

.main-content {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 40px var(--page-padding) 80px;
}

/* ── NAVIGATION ── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--page-padding);
  height: var(--nav-height);
  background: rgba(253,248,245,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: var(--shadow-primary);
  flex-shrink: 0;
}

.nav-logo-text {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
  background: none;
}

.nav-link:hover {
  background: var(--muted);
  color: var(--text);
}

.nav-link.active {
  background: var(--muted);
  color: var(--text);
  font-weight: 500;
}

.nav-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--secondary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 500;
  color: white;
  cursor: pointer;
  margin-left: 8px;
  flex-shrink: 0;
  transition: box-shadow 0.2s;
}

.nav-avatar:hover {
  box-shadow: 0 0 0 3px var(--border);
}

/* ── TYPOGRAPHY ── */
.display {
  font-family: var(--font-display);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1;
}

.display-xl { font-size: clamp(2.4rem, 5vw, 3.2rem); }
.display-lg { font-size: clamp(1.8rem, 3vw, 2.4rem); }
.display-md { font-size: 1.5rem; }
.display-sm { font-size: 1.25rem; font-weight: 600; }

.label-upper {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.text-muted { color: var(--text-muted); }
.text-sm    { font-size: 0.82rem; }
.text-xs    { font-size: 0.72rem; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
  font-family: var(--font-body);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(232,133,106,0.38);
}

.btn-secondary {
  background: rgba(235,168,184,0.15);
  color: #c4728a;
  border: 1px solid rgba(235,168,184,0.3);
}

.btn-secondary:hover {
  background: rgba(235,168,184,0.25);
  transform: translateY(-1px);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent), var(--periwinkle));
  color: white;
  box-shadow: 0 4px 14px rgba(168,159,200,0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(168,159,200,0.4);
}

.btn-ghost {
  background: none;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  background: var(--muted);
  color: var(--text);
}

.btn-icon {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 50%;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.8rem;
  transition: all 0.2s;
}

.btn-icon:hover {
  background: var(--muted);
  color: var(--text);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.78rem;
}

.btn-lg {
  padding: 13px 28px;
  font-size: 0.92rem;
}

/* ── BADGES ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.badge-upcoming  { background: rgba(232,133,106,0.12); color: var(--primary); }
.badge-upcoming  .badge-dot { background: var(--primary); }

.badge-ongoing   { background: rgba(235,168,184,0.18); color: #c4728a; }
.badge-ongoing   .badge-dot { background: var(--secondary); }

.badge-planning  { background: rgba(168,159,200,0.15); color: #7B6FA8; }
.badge-planning  .badge-dot { background: var(--accent); }

.badge-completed { background: rgba(43,161,118,0.12); color: var(--success); }
.badge-completed .badge-dot { background: var(--success); }

.badge-muted {
  background: var(--muted);
  color: var(--text-muted);
}

.badge-visibility {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.68rem;
  color: var(--text-muted);
  background: var(--muted);
  padding: 3px 9px;
  border-radius: var(--radius-full);
}

/* ── CARDS ── */
.card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-body {
  padding: 18px 20px 20px;
}

/* ── TRIP CARDS ── */
.trip-card-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  background: var(--muted);
}

.trip-card-img-placeholder {
  width: 100%;
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}

.trip-card-badges {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.trip-card-name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.2;
}

.trip-card-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
}

.trip-card-meta-row {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.trip-card-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.trip-card-actions .btn-icon {
  margin-left: auto;
}

.trip-card-actions .btn-icon:last-child {
  margin-left: 0;
}

/* ── COLLABORATOR AVATARS ── */
.collab-row {
  display: flex;
  align-items: center;
  margin-bottom: 12px;
}

.collab-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.55rem;
  font-weight: 500;
  color: white;
  margin-right: -6px;
  flex-shrink: 0;
}

.collab-label {
  margin-left: 14px;
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* ── STAT CARDS ── */
.stat-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 20px 22px;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.stat-card-bar {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.stat-card-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.stat-card-number {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 300;
  line-height: 1;
  margin-bottom: 4px;
}

.stat-card-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* ── SECTION HEADERS ── */
.section-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  margin-top: 40px;
}

.section-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.section-count {
  margin-left: auto;
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--muted);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

/* ── GRIDS ── */
.trips-grid {
  display: grid;
  gap: 18px;
}

.trips-grid-1 { grid-template-columns: minmax(0, 380px); }
.trips-grid-2 { grid-template-columns: repeat(2, 1fr); }
.trips-grid-3 { grid-template-columns: repeat(3, 1fr); }

/* ── FORMS ── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 18px;
}

.form-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text);
}

.form-input {
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--input);
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--text);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.form-input:focus {
  border-color: var(--ring);
  box-shadow: 0 0 0 3px rgba(143,163,212,0.15);
}

.form-input::placeholder {
  color: var(--text-muted);
}

/* ── MODALS ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(44,32,56,0.4);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 32px;
  width: 100%;
  max-width: 520px;
  box-shadow: var(--shadow-lg);
  transform: translateY(16px);
  transition: transform 0.25s ease;
}

.modal-overlay.open .modal {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 300;
}

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.animate-fade-up {
  animation: fadeUp 0.4s ease both;
}

.animate-fade-up-1 { animation-delay: 0.05s; }
.animate-fade-up-2 { animation-delay: 0.10s; }
.animate-fade-up-3 { animation-delay: 0.15s; }
.animate-fade-up-4 { animation-delay: 0.20s; }
.animate-fade-up-5 { animation-delay: 0.25s; }

/* ── UTILITIES ── */
.flex         { display: flex; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-sm       { gap: 8px; }
.gap-md       { gap: 16px; }
.gap-lg       { gap: 24px; }
.mt-sm        { margin-top: 8px; }
.mt-md        { margin-top: 16px; }
.mt-lg        { margin-top: 32px; }
.w-full       { width: 100%; }
.hidden       { display: none; }

/* ── DIVIDER ── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 20px 0;
}

/* ── EMPTY STATE ── */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  opacity: 0.5;
}

.empty-state-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  margin-bottom: 6px;
  color: var(--text);
}

.empty-state-sub {
  font-size: 0.82rem;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  :root {
    --page-padding: 20px;
  }

  .nav-links { display: none; }
  .trips-grid-2,
  .trips-grid-3 { grid-template-columns: 1fr; }
  .trips-grid-1 { grid-template-columns: 1fr; }
}

/* Nav avatar as link */
a.nav-avatar {
  text-decoration: none;
}