/* ===================== DESIGN TOKENS — Cream & Berry ===================== */
:root {
  /* kept names for compatibility; values now cream/berry */
  --navy:    #ffffff;
  --navy2:   #fbf7f0;
  --navy3:   #f2e9dc;
  --accent:  #b91c1c;
  --accent2: #d4537e;
  --accent-glow: rgba(212,83,126,.25);
  --teal:    #0f766e;
  --green:   #15803d;
  --red:     #dc2626;
  --yellow:  #b45309;
  --blue:    #1d4ed8;
  --purple:  #9d174d;

  --bg:      #fbf7f0;
  --bg2:     #f5efe4;
  --surface: #ffffff;
  --surface2:#f7f1e8;
  --border:  rgba(60,40,30,.10);
  --border2: rgba(60,40,30,.18);

  --text:    #3a2d2d;
  --text2:   #6f5f55;
  --muted:   #9c8a82;

  --radius:  16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow:  0 4px 20px rgba(120,90,70,.10);
  --shadow-lg: 0 20px 50px rgba(120,90,70,.16);
  --gradient: linear-gradient(135deg, #d4537e 0%, #b91c1c 100%);
  --gradient-navy: linear-gradient(160deg, #ffffff 0%, #fbf7f0 100%);
}

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

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg);
  background-image:
    radial-gradient(circle at 15% 10%, rgba(212,83,126,.07), transparent 40%),
    radial-gradient(circle at 85% 90%, rgba(180,83,9,.06), transparent 40%);
  background-attachment: fixed;
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--surface2); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--navy3); }

/* ===================== HEADER ===================== */
.header {
  background: rgba(255,255,255,.80);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  height: 66px; display: flex; align-items: center; justify-content: space-between;
}
.logo {
  font-family: 'Syne', sans-serif; font-size: 1.4rem; font-weight: 800;
  background: var(--gradient); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; text-decoration: none; letter-spacing: -0.5px;
}
.header-right { display: flex; align-items: center; gap: 14px; }
.header-nav { display: flex; gap: 10px; align-items: center; }

/* ===================== BUTTONS ===================== */
.btn {
  padding: 10px 20px; border-radius: var(--radius-sm);
  font-size: .875rem; font-weight: 600; font-family: inherit;
  cursor: pointer; border: none; transition: all .2s cubic-bezier(.4,0,.2,1);
  text-decoration: none; display: inline-flex; align-items: center; gap: 8px;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient); color: #fff;
  box-shadow: 0 4px 16px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px var(--accent-glow); }
.btn-ghost { background: var(--surface2); color: var(--text); border: 1px solid var(--border2); }
.btn-ghost:hover { background: var(--navy3); }
.btn-outline { background: transparent; color: var(--text2); border: 1.5px solid var(--border2); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { background: rgba(244,63,94,.15); color: #fda4b4; border: 1px solid rgba(244,63,94,.3); }
.btn-danger:hover { background: var(--red); color: #fff; }
.btn-success { background: rgba(34,197,94,.15); color: #86efac; border: 1px solid rgba(34,197,94,.3); }
.btn-success:hover { background: var(--green); color: #fff; }
.btn-xs { padding: 6px 12px; font-size: .78rem; border-radius: 8px; }
.btn-sm { padding: 7px 14px; font-size: .8rem; }
.hidden { display: none !important; }

/* ===================== MAIN ===================== */
.main { max-width: 1200px; margin: 0 auto; padding: 36px 24px 80px; }

/* ===================== HERO ===================== */
.hero { margin-bottom: 48px; position: relative; }
.hero h1 {
  font-family: 'Syne', sans-serif; font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 800; line-height: 1.05; margin-bottom: 18px; letter-spacing: -1px;
}
.hero h1 .accent { background: var(--gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero-sub { color: var(--text2); font-size: 1.1rem; max-width: 520px; line-height: 1.6; }

/* ===================== SECTION HEADER ===================== */
.section-header { display: flex; align-items: center; gap: 14px; margin-bottom: 24px; }
.section-header h2 { font-family: 'Syne', sans-serif; font-size: 1.6rem; font-weight: 700; }
.badge {
  background: var(--surface2); color: var(--text2);
  padding: 4px 12px; border-radius: 20px; font-size: .78rem; font-weight: 600;
  border: 1px solid var(--border);
}

/* ===================== TRIPS GRID ===================== */
.trips-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 22px; }
.trip-card {
  background: var(--surface); border-radius: var(--radius);
  border: 1px solid var(--border); box-shadow: var(--shadow);
  padding: 24px; cursor: pointer; transition: all .25s cubic-bezier(.4,0,.2,1);
  text-decoration: none; color: inherit; display: block; position: relative; overflow: hidden;
}
.trip-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient); opacity: 0; transition: opacity .25s;
}
.trip-card:hover { transform: translateY(-4px); border-color: var(--border2); box-shadow: var(--shadow-lg); }
.trip-card:hover::before { opacity: 1; }
.trip-card.disabled-card { opacity: .55; }
.card-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 12px; gap: 10px; }
.card-title { font-family: 'Syne', sans-serif; font-size: 1.2rem; font-weight: 700; }
.card-desc { color: var(--text2); font-size: .9rem; margin-bottom: 18px; line-height: 1.5; min-height: 20px; }
.card-meta { display: flex; gap: 10px; flex-wrap: wrap; }
.meta-chip {
  background: var(--surface2); border-radius: 8px; padding: 5px 11px;
  font-size: .78rem; color: var(--text2); font-weight: 500; border: 1px solid var(--border);
}
.meta-you { background: rgba(255,122,24,.15) !important; color: var(--accent2) !important; border-color: rgba(255,122,24,.3) !important; }

/* ===================== STATUS BADGES ===================== */
.status-badge { font-size: .68rem; font-weight: 700; letter-spacing: .06em; padding: 4px 10px; border-radius: 20px; text-transform: uppercase; }
.status-active { background: rgba(34,197,94,.18); color: #6ee7a8; }
.status-completed { background: rgba(107,118,156,.2); color: var(--text2); }
.status-pending { background: rgba(245,158,11,.18); color: #fcd34d; }
.status-approved { background: rgba(34,197,94,.18); color: #6ee7a8; }
.status-rejected { background: rgba(244,63,94,.18); color: #fda4b4; }
.status-disabled { background: rgba(244,63,94,.18); color: #fda4b4; }

/* ===================== EMPTY STATE ===================== */
.empty-state { grid-column: 1/-1; text-align: center; padding: 70px 0; color: var(--muted); }
.empty-icon { font-size: 3.5rem; margin-bottom: 14px; opacity: .6; }

/* ===================== TRIP HERO ===================== */
.trip-hero {
  background: var(--gradient-navy); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 40px; margin-bottom: 30px;
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 28px; flex-wrap: wrap; position: relative; overflow: hidden;
}
.trip-hero::after {
  content: ''; position: absolute; top: -50%; right: -10%; width: 400px; height: 400px;
  background: radial-gradient(circle, var(--accent-glow), transparent 70%); opacity: .5;
}
.trip-hero-content { position: relative; z-index: 1; flex: 1; min-width: 280px; }
.trip-meta-top { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.trip-dates-label { color: var(--text2); font-size: .85rem; }
.trip-hero h1 { font-family: 'Syne', sans-serif; font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; line-height: 1.1; margin-bottom: 10px; letter-spacing: -0.5px; }
.trip-description-text { color: var(--text2); font-size: .95rem; margin-bottom: 24px; max-width: 500px; line-height: 1.5; }
.trip-stats-row { display: flex; gap: 32px; flex-wrap: wrap; }
.trip-stat { display: flex; flex-direction: column; gap: 2px; }
.stat-val { font-family: 'Syne', sans-serif; font-size: 1.7rem; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat-lbl { font-size: .72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.trip-admin-info { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: flex-end; gap: 6px; min-width: 170px; }
.admin-label { font-size: .72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.admin-name { font-weight: 700; font-size: 1.05rem; }

/* ===================== TABS ===================== */
.tabs-wrapper { margin-bottom: 28px; }
.tabs { display: flex; gap: 6px; background: var(--surface); padding: 6px; border-radius: var(--radius); border: 1px solid var(--border); width: fit-content; max-width: 100%; overflow-x: auto; }
.tab {
  padding: 10px 22px; border: none; background: none; cursor: pointer;
  font-size: .9rem; font-weight: 600; color: var(--text2); border-radius: var(--radius-sm);
  transition: all .2s; white-space: nowrap; font-family: inherit;
}
.tab.active { color: #fff; background: var(--gradient); box-shadow: 0 4px 14px var(--accent-glow); }
.tab:hover:not(.active) { color: var(--text); background: var(--surface2); }
.tab-content { display: none; animation: fadeIn .3s ease; }
.tab-content.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.tab-actions { display: flex; justify-content: space-between; align-items: center; margin-bottom: 22px; flex-wrap: wrap; gap: 12px; }
.tab-actions h3 { font-family: 'Syne', sans-serif; font-size: 1.3rem; font-weight: 700; }

/* ===================== FILTER PILLS ===================== */
.filter-pills { display: flex; gap: 8px; margin-bottom: 22px; flex-wrap: wrap; }
.pill {
  padding: 7px 16px; border-radius: 20px; border: 1px solid var(--border2);
  background: var(--surface); font-size: .8rem; font-weight: 600; cursor: pointer;
  transition: all .2s; color: var(--text2); font-family: inherit;
}
.pill.active { background: var(--text); color: var(--navy); border-color: var(--text); }
.pill:hover:not(.active) { border-color: var(--accent); color: var(--accent); }

/* ===================== EXPENSE CARD ===================== */
.expenses-list { display: flex; flex-direction: column; gap: 12px; }
.expense-card {
  background: var(--surface); border-radius: var(--radius);
  border: 1px solid var(--border); padding: 18px 22px; box-shadow: var(--shadow);
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  flex-wrap: wrap; transition: all .2s;
}
.expense-card:hover { border-color: var(--border2); }
.expense-left { display: flex; align-items: center; gap: 16px; flex: 1; min-width: 200px; }
.cat-icon {
  width: 46px; height: 46px; border-radius: 12px; background: var(--surface2);
  display: flex; align-items: center; justify-content: center; font-size: 1.3rem; flex-shrink: 0;
  border: 1px solid var(--border);
}
.expense-title { font-weight: 600; font-size: .98rem; }
.expense-meta { font-size: .8rem; color: var(--text2); margin-top: 3px; }
.expense-right { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; }
.expense-amount { font-family: 'Syne', sans-serif; font-size: 1.25rem; font-weight: 700; }
.expense-actions { display: flex; gap: 8px; }
.action-btn { padding: 6px 14px; font-size: .78rem; font-weight: 600; border-radius: 8px; cursor: pointer; border: none; transition: all .2s; font-family: inherit; }
.approve-btn { background: rgba(34,197,94,.15); color: #86efac; border: 1px solid rgba(34,197,94,.3); }
.approve-btn:hover { background: var(--green); color: #fff; }
.reject-btn { background: rgba(244,63,94,.15); color: #fda4b4; border: 1px solid rgba(244,63,94,.3); }
.reject-btn:hover { background: var(--red); color: #fff; }
.rejection-note { font-size: .76rem; color: #fda4b4; margin-top: 4px; font-style: italic; }

/* ===================== MEMBER CARDS ===================== */
.members-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.member-card {
  background: var(--surface); border-radius: var(--radius); border: 1px solid var(--border);
  padding: 20px; box-shadow: var(--shadow); display: flex; align-items: center; gap: 14px; transition: all .2s;
}
.member-card:hover { border-color: var(--border2); transform: translateY(-2px); }
.member-avatar {
  width: 48px; height: 48px; border-radius: 50%; background: var(--gradient); color: #fff;
  display: flex; align-items: center; justify-content: center; font-family: 'Syne', sans-serif;
  font-weight: 700; font-size: 1.05rem; flex-shrink: 0;
}
.member-avatar img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; }
.member-name { font-weight: 600; font-size: .98rem; }
.member-email { font-size: .8rem; color: var(--text2); }
.admin-crown { font-size: .72rem; color: var(--accent2); font-weight: 600; }

/* ===================== SETTLEMENT ===================== */
.settlement-summary {
  background: var(--gradient-navy); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 28px; margin-bottom: 28px; display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 24px;
}
.settle-stat { display: flex; flex-direction: column; gap: 4px; }
.settle-val { font-family: 'Syne', sans-serif; font-size: 1.8rem; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.settle-lbl { font-size: .72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.balances-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; margin-bottom: 30px; }
.balance-card { background: var(--surface); border-radius: var(--radius); border: 1px solid var(--border); padding: 20px; box-shadow: var(--shadow); }
.balance-name { font-weight: 700; font-size: 1rem; margin-bottom: 12px; }
.balance-row { display: flex; justify-content: space-between; font-size: .84rem; margin-bottom: 5px; color: var(--text2); }
.balance-row .lbl { color: var(--muted); }
.balance-final { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--border); font-weight: 700; font-size: 1rem; }
.owes { color: #fda4b4; }
.gets { color: #86efac; }
.settled { color: var(--text2); }
.suggestions-section h4 { font-family: 'Syne', sans-serif; font-size: 1.1rem; font-weight: 700; margin-bottom: 16px; }
.suggestion-item {
  background: var(--surface); border-radius: var(--radius); border: 1px solid var(--border);
  padding: 16px 20px; margin-bottom: 12px; display: flex; justify-content: space-between;
  align-items: center; box-shadow: var(--shadow); flex-wrap: wrap; gap: 10px; transition: all .2s;
}
.suggestion-item:hover { border-color: var(--border2); }
.sugg-text { font-size: .92rem; }
.sugg-amount { font-family: 'Syne', sans-serif; font-size: 1.15rem; font-weight: 700; color: var(--accent2); }
.no-suggestions { padding: 30px; text-align: center; color: #86efac; font-weight: 600; font-size: 1.05rem; }

/* ===================== ADMIN PANEL ===================== */
.admin-tabs { display: flex; gap: 6px; background: var(--surface); padding: 6px; border-radius: var(--radius); border: 1px solid var(--border); width: fit-content; margin-bottom: 28px; }
.stats-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 18px; margin-bottom: 32px; }
.stat-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.stat-card-icon { font-size: 1.6rem; margin-bottom: 10px; }
.stat-card-val { font-family: 'Syne', sans-serif; font-size: 2rem; font-weight: 800; }
.stat-card-lbl { font-size: .82rem; color: var(--text2); margin-top: 2px; }

.data-table-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th {
  text-align: left; padding: 16px 20px; font-size: .76rem; font-weight: 700;
  color: var(--muted); text-transform: uppercase; letter-spacing: .06em;
  border-bottom: 1px solid var(--border); background: var(--bg2);
}
.data-table td { padding: 16px 20px; font-size: .9rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--surface2); }
.table-user { display: flex; align-items: center; gap: 12px; }
.table-avatar { width: 38px; height: 38px; border-radius: 50%; background: var(--gradient); color: #fff; display: flex; align-items: center; justify-content: center; font-family: 'Syne', sans-serif; font-weight: 700; font-size: .85rem; flex-shrink: 0; }
.table-avatar img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; }
.table-name { font-weight: 600; }
.table-email { font-size: .8rem; color: var(--text2); }

.role-select {
  padding: 6px 10px; border-radius: 8px; border: 1px solid var(--border2);
  background: var(--surface2); color: var(--text); font-size: .82rem; font-family: inherit; cursor: pointer;
}

.toggle-switch { position: relative; display: inline-block; width: 46px; height: 26px; cursor: pointer; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider { position: absolute; inset: 0; background: var(--surface2); border: 1px solid var(--border2); border-radius: 26px; transition: .25s; }
.toggle-slider::before { content: ''; position: absolute; height: 18px; width: 18px; left: 3px; top: 3px; background: var(--text2); border-radius: 50%; transition: .25s; }
.toggle-switch input:checked + .toggle-slider { background: var(--green); border-color: var(--green); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(20px); background: #fff; }

/* ===================== ROLE CHIPS ===================== */
.role-chip { font-size: .7rem; font-weight: 700; letter-spacing: .04em; padding: 3px 10px; border-radius: 20px; display: inline-block; }
.chip-super { background: rgba(255,122,24,.18); color: var(--accent2); }
.chip-admin { background: rgba(59,130,246,.18); color: #93c5fd; }
.chip-user  { background: rgba(107,118,156,.2); color: var(--text2); }

/* ===================== USER MENU ===================== */
.user-menu { display: flex; align-items: center; gap: 10px; background: var(--surface); border: 1px solid var(--border); border-radius: 30px; padding: 5px 14px 5px 5px; }
.user-avatar { width: 32px; height: 32px; border-radius: 50%; object-fit: cover; display: none; border: 2px solid var(--border2); }
.user-name-text { font-size: .85rem; font-weight: 600; }

/* ===================== MODALS ===================== */
.modal-overlay { position: fixed; inset: 0; background: rgba(5,8,20,.7); backdrop-filter: blur(6px); z-index: 200; display: flex; align-items: center; justify-content: center; padding: 20px; animation: fadeIn .2s; }
.modal { background: var(--surface); border: 1px solid var(--border2); border-radius: var(--radius-lg); width: 100%; max-width: 540px; max-height: 90vh; overflow-y: auto; box-shadow: var(--shadow-lg); animation: slideUp .25s ease; }
.modal-sm { max-width: 400px; }
@keyframes slideUp { from { opacity: 0; transform: translateY(24px) scale(.98); } to { opacity: 1; transform: translateY(0) scale(1); } }
.modal-header { display: flex; justify-content: space-between; align-items: center; padding: 24px 28px 0; margin-bottom: 22px; }
.modal-header h3 { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 1.2rem; }
.modal-close { background: var(--surface2); border: none; font-size: 1rem; cursor: pointer; color: var(--text2); padding: 6px 10px; border-radius: 8px; transition: all .2s; }
.modal-close:hover { background: var(--red); color: #fff; }
.modal-body { padding: 0 28px; }
.modal-footer { display: flex; justify-content: flex-end; gap: 12px; padding: 24px 28px; margin-top: 24px; border-top: 1px solid var(--border); }

/* ===================== FORMS ===================== */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 8px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.input {
  width: 100%; padding: 12px 14px; border-radius: var(--radius-sm); border: 1.5px solid var(--border2);
  background: var(--bg2); font-size: .92rem; font-family: inherit; color: var(--text);
  transition: all .2s; outline: none;
}
.input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.input::placeholder { color: var(--muted); }
.textarea { min-height: 88px; resize: vertical; }
.select { appearance: none; cursor: pointer; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%236b769c' d='M6 8L0 0h12z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; }
.hint { font-size: .78rem; color: var(--muted); margin-top: 6px; display: block; }
.checkbox-group { display: flex; flex-direction: column; gap: 10px; max-height: 170px; overflow-y: auto; border: 1.5px solid var(--border2); border-radius: var(--radius-sm); padding: 14px; background: var(--bg2); }
.checkbox-group label { font-weight: 400; display: flex; align-items: center; gap: 10px; cursor: pointer; font-size: .9rem; }
.checkbox-group input[type=checkbox] { cursor: pointer; width: 16px; height: 16px; accent-color: var(--accent); }

/* ===================== LOGIN ===================== */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.login-card { background: var(--surface); border: 1px solid var(--border2); border-radius: var(--radius-lg); padding: 52px 44px; width: 100%; max-width: 440px; box-shadow: var(--shadow-lg); text-align: center; position: relative; overflow: hidden; }
.login-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--gradient); }
.login-logo { font-family: 'Syne', sans-serif; font-size: 1.8rem; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 30px; }
.login-title { font-family: 'Syne', sans-serif; font-size: 1.9rem; font-weight: 800; margin-bottom: 10px; letter-spacing: -0.5px; }
.login-sub { color: var(--text2); font-size: .98rem; margin-bottom: 36px; }
.google-btn { display: flex; align-items: center; justify-content: center; gap: 12px; padding: 15px 24px; border-radius: var(--radius-sm); border: none; background: var(--gradient); font-size: .95rem; font-weight: 700; color: #fff; text-decoration: none; transition: all .25s; cursor: pointer; width: 100%; margin-bottom: 22px; font-family: inherit; box-shadow: 0 6px 18px var(--accent-glow); }
.google-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 26px var(--accent-glow); }
.google-btn svg { background: #fff; border-radius: 50%; padding: 3px; box-sizing: content-box; }
.login-footer { color: var(--muted); font-size: .85rem; }
.login-error { background: rgba(244,63,94,.15); color: #fda4b4; border: 1px solid rgba(244,63,94,.3); border-radius: var(--radius-sm); padding: 12px 16px; font-size: .85rem; font-weight: 500; margin-bottom: 22px; }

/* ===================== TOAST ===================== */
.toast { position: fixed; bottom: 30px; right: 30px; z-index: 999; background: var(--surface2); color: var(--text); padding: 14px 22px; border-radius: var(--radius-sm); font-size: .88rem; font-weight: 600; box-shadow: var(--shadow-lg); border: 1px solid var(--border2); animation: toastIn .25s ease; max-width: 360px; }
.toast-error { background: var(--red); color: #fff; border-color: var(--red); }
.toast-success { background: var(--green); color: #fff; border-color: var(--green); }
@keyframes toastIn { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }

/* ===================== RESPONSIVE (mobile-ready) ===================== */
@media (max-width: 768px) {
  .main { padding: 24px 16px 60px; }
  .header-inner { padding: 0 16px; }
  .user-name-text { display: none; }
  .trip-hero { flex-direction: column; padding: 28px 22px; }
  .trip-admin-info { align-items: flex-start; }
  .form-row { grid-template-columns: 1fr; }
  .expense-card { flex-direction: column; align-items: flex-start; }
  .expense-right { align-items: flex-start; width: 100%; }
  .trips-grid { grid-template-columns: 1fr; }
  .data-table-wrap { overflow-x: auto; }
  .data-table { min-width: 600px; }
  .hero h1 { font-size: 2.4rem; }
  .modal { max-width: 100%; }
}
@media (max-width: 480px) {
  .header-nav .btn span.btn-label { display: none; }
  .trip-stats-row { gap: 20px; }
}

/* ===================== MEMBER TAGS (App user / Managed) ===================== */
.member-tag {
  font-size: .7rem; font-weight: 700; padding: 4px 10px; border-radius: 20px;
  letter-spacing: .3px; white-space: nowrap; align-self: center;
}
.tag-app     { background: #e6f1fb; color: #185fa5; }
.tag-managed { background: #fce7f3; color: #9d174d; }
.add-managed-btn { font-size: .85rem; }