/* ============================================================
   FIFA World Cup 2026 – Betting App – Styles
   ============================================================ */

:root {
  --bg-deep:      #050d1a;
  --bg-card:      rgba(255,255,255,0.05);
  --bg-card-hover:rgba(255,255,255,0.09);
  --border:       rgba(255,255,255,0.10);
  --border-glow:  rgba(52,211,153,0.35);
  --gold:         #f59e0b;
  --gold-light:   #fde68a;
  --green:        #34d399;
  --green-dark:   #059669;
  --blue:         #3b82f6;
  --red:          #ef4444;
  --text-primary: #f1f5f9;
  --text-secondary:#94a3b8;
  --text-muted:   #475569;
  --radius:       14px;
  --radius-lg:    20px;
  --shadow:       0 8px 32px rgba(0,0,0,0.5);
  --transition:   0.22s cubic-bezier(.4,0,.2,1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(52,211,153,0.12) 0%, transparent 70%),
    radial-gradient(ellipse 60% 40% at 100% 80%, rgba(59,130,246,0.08) 0%, transparent 60%);
}

.hidden { display: none !important; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 3px; }

/* ============================================================
   AUTH OVERLAY
   ============================================================ */
.auth-overlay {
  position: fixed; inset: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-deep);
  background-image:
    radial-gradient(ellipse 70% 50% at 50% 0%, rgba(52,211,153,0.18) 0%, transparent 70%),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.auth-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  backdrop-filter: blur(24px);
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  text-align: center;
  max-width: 420px;
  width: 90%;
  box-shadow: 0 24px 80px rgba(0,0,0,0.6);
  animation: slideUp 0.5s ease;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

.auth-trophy { font-size: 4rem; display: block; margin-bottom: 1rem; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { transform: scale(1); } 50% { transform: scale(1.08); } }

.auth-title {
  font-family: 'Oswald', sans-serif;
  font-size: 2rem; font-weight: 700;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  letter-spacing: 1px; margin-bottom: 0.4rem;
}
.auth-subtitle { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 1.5rem; }

.auth-divider {
  height: 1px; background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 1.5rem 0;
}
.auth-desc { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 1.5rem; }

.auth-note { color: var(--text-muted); font-size: 0.78rem; margin-top: 1.2rem; }

/* Center Google Sign-In button */
.g_id_signin { display: flex; justify-content: center; }

/* ============================================================
   APP LAYOUT
   ============================================================ */
.app { min-height: 100vh; display: flex; flex-direction: column; }

/* ── Header ── */
.app-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.5rem;
  background: rgba(5,13,26,0.8);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
}
.header-left { display: flex; align-items: center; gap: 0.75rem; }
.header-trophy { font-size: 1.8rem; }
.header-title {
  font-family: 'Oswald', sans-serif; font-size: 1.3rem; font-weight: 700;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.header-sub { color: var(--text-muted); font-size: 0.75rem; margin-top: -2px; }

.header-right { display: flex; align-items: center; gap: 0.75rem; }
.user-info { display: flex; align-items: center; gap: 0.6rem; }
.user-avatar { width: 36px; height: 36px; border-radius: 50%; border: 2px solid var(--green); }
.user-name { font-size: 0.85rem; font-weight: 600; display: block; }
.user-email { font-size: 0.72rem; color: var(--text-muted); display: block; }
.user-details { display: none; }
@media (min-width: 600px) { .user-details { display: block; } }

.btn-logout {
  background: rgba(255,255,255,0.07); border: 1px solid var(--border);
  color: var(--text-secondary); border-radius: 8px; padding: 0.45rem 0.65rem;
  cursor: pointer; transition: var(--transition); display: flex; align-items: center;
}
.btn-logout:hover { background: rgba(239,68,68,0.15); color: var(--red); border-color: var(--red); }

/* ── Tab Nav ── */
.tab-nav {
  display: flex; gap: 0; background: rgba(0,0,0,0.3);
  border-bottom: 1px solid var(--border); padding: 0 1rem;
  overflow-x: auto; scrollbar-width: none;
}
.tab-nav::-webkit-scrollbar { display: none; }

.tab-btn {
  display: flex; align-items: center; gap: 0.45rem;
  padding: 0.9rem 1.1rem; font-size: 0.85rem; font-weight: 500;
  color: var(--text-muted); background: none; border: none;
  border-bottom: 2px solid transparent; cursor: pointer;
  transition: var(--transition); white-space: nowrap;
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active { color: var(--green); border-bottom-color: var(--green); }

/* ── Tab content ── */
.tab-content { padding: 1.5rem; max-width: 1200px; margin: 0 auto; width: 100%; }

/* ============================================================
   FILTER BAR
   ============================================================ */
.filter-bar {
  display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: flex-end;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1rem 1.25rem; margin-bottom: 1.5rem;
}
.filter-group { display: flex; flex-direction: column; gap: 0.3rem; }
.filter-label { font-size: 0.75rem; color: var(--text-muted); font-weight: 500; }

.filter-input, .filter-select {
  background: rgba(255,255,255,0.06); border: 1px solid var(--border);
  color: var(--text-primary); border-radius: 8px; padding: 0.5rem 0.75rem;
  font-size: 0.85rem; font-family: inherit; outline: none;
  transition: var(--transition); min-width: 140px;
}
.filter-input:focus, .filter-select:focus {
  border-color: var(--green); box-shadow: 0 0 0 3px rgba(52,211,153,0.15);
}
.filter-select option { background: #0f1f35; }

.btn-reset {
  padding: 0.5rem 1rem; border-radius: 8px; font-size: 0.8rem; font-weight: 500;
  background: rgba(239,68,68,0.12); border: 1px solid rgba(239,68,68,0.3);
  color: var(--red); cursor: pointer; transition: var(--transition);
  align-self: flex-end;
}
.btn-reset:hover { background: rgba(239,68,68,0.22); }

/* ============================================================
   MATCH CARDS
   ============================================================ */
.match-day-group { margin-bottom: 2rem; }
.match-day-label {
  font-family: 'Oswald', sans-serif; font-size: 1rem; font-weight: 600;
  color: var(--gold); letter-spacing: 1px; margin-bottom: 0.75rem;
  display: flex; align-items: center; gap: 0.5rem;
}
.match-day-label::after {
  content: ''; flex: 1; height: 1px;
  background: linear-gradient(90deg, rgba(245,158,11,0.4), transparent);
}

.match-cards-grid {
  display: grid; gap: 0.75rem;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
}

.match-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1rem 1.25rem;
  cursor: pointer; transition: var(--transition);
  position: relative; overflow: hidden;
}
.match-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(52,211,153,0.04), transparent);
  opacity: 0; transition: var(--transition);
}
.match-card:hover {
  border-color: var(--border-glow); background: var(--bg-card-hover);
  transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.match-card:hover::before { opacity: 1; }

.match-card.has-bet { border-color: rgba(52,211,153,0.4); }
.match-card.has-bet::after {
  content: '✓ Đã cược'; position: absolute; top: 0.6rem; right: 0.75rem;
  font-size: 0.7rem; font-weight: 600; color: var(--green);
  background: rgba(52,211,153,0.1); padding: 0.2rem 0.5rem; border-radius: 20px;
  border: 1px solid rgba(52,211,153,0.3);
}

.card-top {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 0.75rem;
}
.card-group {
  font-size: 0.7rem; font-weight: 600; color: var(--gold);
  background: rgba(245,158,11,0.12); border: 1px solid rgba(245,158,11,0.2);
  padding: 0.2rem 0.55rem; border-radius: 20px; text-transform: uppercase;
}
.card-time { font-size: 0.78rem; color: var(--text-muted); }

.card-teams {
  display: flex; align-items: center; justify-content: space-between; gap: 0.5rem;
}
.card-team { display: flex; flex-direction: column; align-items: center; gap: 0.35rem; flex: 1; }
.card-team.home { align-items: flex-start; }
.card-team.away { align-items: flex-end; }

.flag-img {
  width: 36px; height: 24px; object-fit: cover;
  border-radius: 3px; border: 1px solid rgba(255,255,255,0.1);
}
.flag-placeholder {
  width: 36px; height: 24px; border-radius: 3px;
  background: rgba(255,255,255,0.1); display: flex; align-items: center; justify-content: center;
  font-size: 0.65rem; color: var(--text-muted);
}

.card-team-name { font-size: 0.85rem; font-weight: 600; color: var(--text-primary); text-align: center; }
.card-abbr { font-size: 0.7rem; color: var(--text-muted); }

.card-score-area { text-align: center; }
.card-vs { font-family: 'Oswald', sans-serif; font-size: 1rem; color: var(--text-muted); }
.card-actual-score { font-family: 'Oswald', sans-serif; font-size: 1.4rem; color: var(--text-primary); font-weight: 700; }

.card-bet-badge {
  display: inline-block; margin-top: 0.25rem; padding: 0.15rem 0.5rem;
  background: rgba(52,211,153,0.15); border: 1px solid rgba(52,211,153,0.3);
  border-radius: 20px; font-size: 0.72rem; color: var(--green); font-weight: 600;
}

.card-bottom {
  display: flex; align-items: center; gap: 0.5rem;
  margin-top: 0.75rem; padding-top: 0.6rem;
  border-top: 1px solid rgba(255,255,255,0.05);
  color: var(--text-muted); font-size: 0.75rem;
}

/* ============================================================
   LOADING / EMPTY / ERROR STATES
   ============================================================ */
.loading-state, .error-state, .empty-state {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 1rem; padding: 4rem 2rem; text-align: center;
  color: var(--text-muted);
}
.spinner {
  width: 40px; height: 40px; border: 3px solid rgba(52,211,153,0.15);
  border-top-color: var(--green); border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.error-icon, .empty-icon { font-size: 2.5rem; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn-primary {
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: #fff; border: none; border-radius: 10px;
  padding: 0.65rem 1.5rem; font-size: 0.9rem; font-weight: 600;
  cursor: pointer; transition: var(--transition);
  box-shadow: 0 4px 16px rgba(52,211,153,0.3);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(52,211,153,0.4); }
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: rgba(255,255,255,0.07); border: 1px solid var(--border);
  color: var(--text-secondary); border-radius: 10px;
  padding: 0.65rem 1.5rem; font-size: 0.9rem; font-weight: 500;
  cursor: pointer; transition: var(--transition);
}
.btn-secondary:hover { background: rgba(255,255,255,0.12); }

/* ============================================================
   BET MODAL
   ============================================================ */
.modal-overlay {
  position: fixed; inset: 0; z-index: 500;
  background: rgba(0,0,0,0.75); backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
  animation: fadeIn 0.2s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal-card {
  background: linear-gradient(145deg, rgba(15,31,53,0.98), rgba(5,13,26,0.98));
  border: 1px solid rgba(52,211,153,0.3);
  border-radius: var(--radius-lg); padding: 2rem;
  max-width: 480px; width: 100%;
  box-shadow: 0 24px 80px rgba(0,0,0,0.7), 0 0 0 1px rgba(52,211,153,0.1);
  position: relative;
  animation: modalIn 0.25s cubic-bezier(.34,1.56,.64,1);
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.88) translateY(20px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
  position: absolute; top: 1rem; right: 1rem;
  background: rgba(255,255,255,0.07); border: 1px solid var(--border);
  color: var(--text-muted); border-radius: 8px; width: 32px; height: 32px;
  cursor: pointer; font-size: 0.9rem; transition: var(--transition);
  display: flex; align-items: center; justify-content: center;
}
.modal-close:hover { background: rgba(239,68,68,0.15); color: var(--red); }

.modal-badge {
  display: inline-block; margin-bottom: 1rem;
  font-size: 0.75rem; font-weight: 600; color: var(--gold);
  background: rgba(245,158,11,0.1); border: 1px solid rgba(245,158,11,0.25);
  padding: 0.25rem 0.75rem; border-radius: 20px; text-transform: uppercase; letter-spacing: 0.5px;
}

.modal-teams {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  margin-bottom: 1rem;
}
.modal-team { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; flex: 1; }
.modal-team .team-label { font-size: 0.65rem; color: var(--text-muted); font-weight: 600; letter-spacing: 1px; }
.modal-team .team-name { font-size: 1rem; font-weight: 700; text-align: center; }
.team-flag { width: 52px; height: 35px; object-fit: cover; border-radius: 4px; border: 1px solid rgba(255,255,255,0.1); }

.modal-vs {
  font-family: 'Oswald', sans-serif; font-size: 1.5rem;
  color: var(--text-muted); font-weight: 700;
}

.modal-meta {
  text-align: center; color: var(--text-muted); font-size: 0.8rem;
  margin-bottom: 1.25rem; display: flex; align-items: center; justify-content: center; gap: 0.4rem;
}
.meta-dot { color: var(--text-muted); }

.modal-existing {
  background: rgba(52,211,153,0.08); border: 1px solid rgba(52,211,153,0.2);
  border-radius: 8px; padding: 0.6rem 1rem; margin-bottom: 1rem;
  display: flex; align-items: center; justify-content: space-between;
}
.existing-label { font-size: 0.8rem; color: var(--text-secondary); }
.existing-score { font-size: 1.1rem; font-weight: 700; color: var(--green); font-family: 'Oswald', sans-serif; }

.modal-input-area { margin-bottom: 1.5rem; }
.input-label { display: block; font-size: 0.85rem; font-weight: 500; margin-bottom: 0.75rem; }
.input-hint { color: var(--text-muted); font-size: 0.8rem; }

.score-input-group { display: flex; align-items: center; gap: 0.75rem; justify-content: center; }
.score-input {
  width: 80px; height: 64px; text-align: center;
  font-size: 2rem; font-weight: 700; font-family: 'Oswald', sans-serif;
  background: rgba(255,255,255,0.07); border: 2px solid var(--border);
  color: var(--text-primary); border-radius: 12px; outline: none;
  transition: var(--transition);
}
.score-input:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(52,211,153,0.15); }
.score-input::-webkit-outer-spin-button,
.score-input::-webkit-inner-spin-button { -webkit-appearance: none; }

.score-dash {
  font-size: 2rem; font-weight: 700; color: var(--text-muted);
  font-family: 'Oswald', sans-serif;
}

.input-error { color: var(--red); font-size: 0.8rem; margin-top: 0.5rem; }

.modal-actions { display: flex; gap: 0.75rem; justify-content: flex-end; }

/* ============================================================
   HISTORY TAB
   ============================================================ */
.history-header {
  display: flex; flex-wrap: wrap; align-items: center;
  justify-content: space-between; gap: 1rem; margin-bottom: 1.5rem;
}
.section-title {
  font-family: 'Oswald', sans-serif; font-size: 1.3rem; font-weight: 600;
  color: var(--text-primary);
}
.history-filters { display: flex; gap: 0.75rem; flex-wrap: wrap; }

.history-container { display: flex; flex-direction: column; gap: 0.75rem; }

.history-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1rem 1.25rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  transition: var(--transition);
}
.history-card:hover { border-color: var(--border-glow); background: var(--bg-card-hover); }

.history-match { flex: 1; }
.history-teams {
  font-size: 0.9rem; font-weight: 600; margin-bottom: 0.25rem;
  display: flex; align-items: center; gap: 0.5rem;
}
.history-meta { font-size: 0.75rem; color: var(--text-muted); }

.history-bet {
  text-align: right;
}
.history-score {
  font-family: 'Oswald', sans-serif; font-size: 1.5rem; font-weight: 700;
  color: var(--green);
}
.history-date { font-size: 0.72rem; color: var(--text-muted); margin-top: 0.1rem; }

/* ============================================================
   LEADERBOARD TAB
   ============================================================ */
.lb-container { display: flex; flex-direction: column; gap: 0.75rem; }

.lb-match-header {
  background: rgba(245,158,11,0.07); border: 1px solid rgba(245,158,11,0.2);
  border-radius: var(--radius); padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}
.lb-match-title { font-family: 'Oswald', sans-serif; font-size: 1.1rem; font-weight: 600; margin-bottom: 0.25rem; }
.lb-match-sub { font-size: 0.8rem; color: var(--text-muted); }

.lb-bet-row {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 0.9rem 1.25rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.lb-bet-score {
  font-family: 'Oswald', sans-serif; font-size: 1.6rem; font-weight: 700; color: var(--gold); min-width: 60px;
}
.lb-bet-count { font-size: 0.8rem; color: var(--text-muted); }
.lb-bet-users { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.25rem; }
.lb-user-chip {
  font-size: 0.72rem; padding: 0.15rem 0.5rem;
  background: rgba(52,211,153,0.1); border: 1px solid rgba(52,211,153,0.2);
  border-radius: 20px; color: var(--green);
}

/* ============================================================
   TOAST
   ============================================================ */
.toast {
  position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%);
  z-index: 999; padding: 0.75rem 1.5rem;
  background: rgba(15,31,53,0.95); border: 1px solid var(--border);
  border-radius: 30px; font-size: 0.88rem; font-weight: 500;
  backdrop-filter: blur(12px); box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  animation: toastIn 0.3s ease;
}
.toast.success { border-color: rgba(52,211,153,0.5); color: var(--green); }
.toast.error   { border-color: rgba(239,68,68,0.5);  color: var(--red); }
.toast.info    { border-color: rgba(59,130,246,0.5);  color: var(--blue); }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(12px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 600px) {
  .tab-content { padding: 1rem; }
  .match-cards-grid { grid-template-columns: 1fr; }
  .modal-card { padding: 1.5rem 1rem; }
  .filter-bar { padding: 0.75rem; }
  .history-header { flex-direction: column; align-items: flex-start; }
}