/* ==========================================================================
   CSS VARIABLES & DESIGN TOKENS
   ========================================================================== */
:root {
  --font-title: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Color Palette - HSL values */
  --bg-app: hsl(224, 71%, 4%);
  --bg-gradient-start: hsl(222, 47%, 10%);
  --bg-gradient-end: hsl(224, 71%, 3%);
  
  --card-bg: rgba(13, 22, 43, 0.55);
  --card-border: rgba(255, 255, 255, 0.07);
  --card-hover-border: rgba(99, 102, 241, 0.35);
  --card-glow: rgba(99, 102, 241, 0.06);

  --color-primary: hsl(263, 90%, 58%); /* Neon Indigo */
  --color-primary-hover: hsl(263, 90%, 65%);
  --color-accent: hsl(175, 90%, 46%); /* Neon Teal */
  --color-accent-hover: hsl(175, 90%, 55%);
  
  --color-text-main: hsl(210, 40%, 98%);
  --color-text-muted: hsl(215, 20%, 68%);
  --color-text-dimmed: hsl(215, 12%, 46%);
  
  --color-success: hsl(142, 70%, 45%);
  --color-success-bg: rgba(16, 185, 129, 0.1);
  --color-warning: hsl(38, 92%, 50%);
  --color-danger: hsl(0, 84%, 55%);
  --color-danger-bg: rgba(239, 68, 68, 0.1);

  /* Shadows and Blurs */
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.7);
  --glass-blur: blur(12px);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-app);
  background-image: radial-gradient(circle at 50% 0%, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
  background-attachment: fixed;
  color: var(--color-text-main);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

button, input, select {
  font-family: inherit;
  color: inherit;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: var(--transition-fast);
}
a:hover {
  color: var(--color-accent-hover);
}

.hidden {
  display: none !important;
}

/* ==========================================================================
   LAYOUTS & COMPONENTS
   ========================================================================== */
#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-sm);
  border: 1px solid transparent;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-normal);
  font-size: 0.95rem;
  outline: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
}
.btn-primary:hover {
  background-color: var(--color-primary-hover);
  box-shadow: 0 0 25px rgba(99, 102, 241, 0.6);
  transform: translateY(-1px);
}

.btn-accent {
  background-color: var(--color-accent);
  color: #0d162b; /* Dark text for contrast on bright teal */
  box-shadow: 0 0 15px rgba(20, 240, 210, 0.4);
}
.btn-accent:hover {
  background-color: var(--color-accent-hover);
  box-shadow: 0 0 25px rgba(20, 240, 210, 0.6);
  transform: translateY(-1px);
}

.btn-outline {
  background-color: transparent;
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--color-text-main);
}
.btn-outline:hover {
  border-color: var(--color-text-main);
  background-color: rgba(255, 255, 255, 0.05);
}

.btn-sm {
  padding: 0.4rem 1rem;
  font-size: 0.85rem;
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* Form Groups */
.form-group {
  margin-bottom: 1.25rem;
}
.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}
.input-wrapper input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.5rem;
  background-color: rgba(2, 6, 23, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-sm);
  color: #fff;
  outline: none;
  font-size: 1rem;
  transition: var(--transition-normal);
}
.input-wrapper input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.25);
  background-color: rgba(2, 6, 23, 0.7);
}

.input-icon {
  position: absolute;
  left: 1rem;
  color: var(--color-text-dimmed);
  font-size: 1rem;
  pointer-events: none;
}

/* ==========================================================================
   AUTHENTICATION SCREEN
   ========================================================================== */
#auth-screen {
  justify-content: center;
  align-items: center;
  padding: 2rem;
}

.auth-bg-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.12) 0%, rgba(0,0,0,0) 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 0;
}

.auth-card-container {
  width: 100%;
  max-width: 440px;
  z-index: 1;
}

.auth-header {
  text-align: center;
  margin-bottom: 2rem;
}
.auth-header .logo-badge {
  font-size: 3rem;
  margin-bottom: 0.5rem;
  display: inline-block;
  filter: drop-shadow(0 0 10px rgba(234, 179, 8, 0.3));
}
.auth-header h1 {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 2rem;
  letter-spacing: -0.02em;
}
.auth-header h1 span {
  color: var(--color-accent);
}
.auth-header p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-top: 0.25rem;
}

.auth-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: var(--glass-blur);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.auth-tabs {
  display: flex;
  background-color: rgba(2, 6, 23, 0.4);
  border-bottom: 1px solid var(--card-border);
}
.auth-tab-btn {
  flex: 1;
  padding: 1rem;
  background: none;
  border: none;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  color: var(--color-text-muted);
  transition: var(--transition-fast);
  border-bottom: 2px solid transparent;
}
.auth-tab-btn:hover {
  color: var(--color-text-main);
  background-color: rgba(255, 255, 255, 0.02);
}
.auth-tab-btn.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
  background-color: rgba(255, 255, 255, 0.01);
}

.auth-form {
  padding: 2.25rem 2rem;
  display: none;
}
.auth-form.active-form {
  display: block;
  animation: fadeIn 0.4s ease;
}

/* ==========================================================================
   NAVBAR STYLES
   ========================================================================== */
.navbar {
  background-color: rgba(13, 22, 43, 0.65);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--card-border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 1.3rem;
}
.nav-brand .brand-icon {
  font-size: 1.5rem;
}
.nav-brand .accent {
  color: var(--color-accent);
}

.nav-user-stats {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.stat-badge {
  background-color: rgba(2, 6, 23, 0.4);
  border: 1px solid var(--card-border);
  padding: 0.4rem 0.8rem;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
}
.stat-badge .stat-label {
  color: var(--color-text-dimmed);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}
.stat-badge .stat-value {
  font-weight: 700;
  color: #fff;
}
.user-profile .stat-value {
  color: var(--color-accent);
}
.points-badge {
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.1);
}
.exact-badge {
  border-color: rgba(16, 185, 129, 0.3);
}

/* ==========================================================================
   DASHBOARD / MAIN BODY
   ========================================================================== */
.dashboard-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  width: 100%;
  flex: 1;
}

.dashboard-header {
  margin-bottom: 2rem;
}

.dashboard-tabs {
  display: inline-flex;
  background-color: rgba(2, 6, 23, 0.5);
  padding: 0.35rem;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--card-border);
}
.dash-tab-btn {
  background: none;
  border: none;
  padding: 0.6rem 1.5rem;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: calc(var(--border-radius-sm) - 2px);
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.dash-tab-btn:hover {
  color: #fff;
}
.dash-tab-btn.active {
  background-color: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.dashboard-tab-content {
  animation: fadeIn 0.4s ease;
}

/* Rules Card */
.rules-card-container {
  margin-bottom: 2rem;
}
.rules-card {
  background-color: rgba(30, 41, 59, 0.25);
  border: 1px dashed rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-md);
  padding: 1.25rem 1.5rem;
}
.rules-card h3 {
  font-family: var(--font-title);
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--color-accent);
}
.rules-card ul {
  list-style: none;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 0.5rem 1.5rem;
}
.rules-card li {
  position: relative;
  padding-left: 1.25rem;
}
.rules-card li::before {
  content: "•";
  color: var(--color-accent);
  position: absolute;
  left: 0;
  font-size: 1.2rem;
  line-height: 1.1;
}

/* Phase Selector */
.phase-selector {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 1rem;
}
.phase-btn {
  background: none;
  border: none;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text-dimmed);
  cursor: pointer;
  transition: var(--transition-fast);
  padding-bottom: 0.5rem;
  position: relative;
}
.phase-btn:hover {
  color: var(--color-text-main);
}
.phase-btn.active {
  color: var(--color-accent);
}
.phase-btn.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--color-accent);
  border-radius: 2px;
  box-shadow: 0 0 10px var(--color-accent);
}

/* ==========================================================================
   MATCH CARD & GRID
   ========================================================================== */
.matches-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}

.match-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius-md);
  padding: 1.5rem;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.match-card:hover {
  transform: translateY(-2px);
  border-color: var(--card-hover-border);
  box-shadow: var(--shadow-md), 0 0 20px var(--card-glow);
}

/* Card Header Metadata */
.match-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  font-size: 0.8rem;
  color: var(--color-text-dimmed);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.match-meta .match-status {
  padding: 0.2rem 0.6rem;
  border-radius: 50px;
  font-size: 0.75rem;
}
.match-status.status-finalizado {
  background-color: var(--color-success-bg);
  color: var(--color-success);
}
.match-status.status-en_curso {
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--color-warning);
  animation: pulse 2s infinite;
}
.match-status.status-programado {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--color-text-muted);
}

/* Match Teams and Score Inputs Container */
.match-body {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.team-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 32%;
  text-align: center;
}
.team-flag {
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.2));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 2.2rem;
}
.team-flag-img {
  width: 3.2rem;
  height: 2.1rem;
  object-fit: cover;
  border-radius: 4px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
  border: 1.5px solid rgba(255, 255, 255, 0.15);
  transition: transform 0.2s ease;
}
.team-flag-img:hover {
  transform: scale(1.08);
}
.team-name {
  font-family: var(--font-title);
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
}

.score-inputs-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 36%;
}
.score-input {
  width: 48px;
  height: 48px;
  background-color: rgba(2, 6, 23, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--border-radius-sm);
  text-align: center;
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  outline: none;
  transition: var(--transition-fast);
  -moz-appearance: textfield;
}
.score-input::-webkit-outer-spin-button,
.score-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.score-input:focus:not(:disabled) {
  border-color: var(--color-accent);
  box-shadow: 0 0 10px rgba(20, 184, 166, 0.3);
  background-color: rgba(2, 6, 23, 0.8);
}
.score-input:disabled {
  background-color: rgba(255, 255, 255, 0.02);
  border-color: rgba(255, 255, 255, 0.05);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

.score-separator {
  color: var(--color-text-dimmed);
  font-weight: 700;
  font-size: 1rem;
}

/* Knockout Advancement Prediction Section */
.match-knockout-advancement {
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 1rem;
}
.knockout-header {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}
.advancement-toggle {
  display: flex;
  gap: 0.5rem;
  background-color: rgba(2, 6, 23, 0.4);
  padding: 0.25rem;
  border-radius: var(--border-radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.05);
}
.advancement-btn {
  flex: 1;
  background: none;
  border: none;
  padding: 0.4rem 0.5rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-text-dimmed);
  cursor: pointer;
  border-radius: calc(var(--border-radius-sm) - 2px);
  transition: var(--transition-fast);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.advancement-btn:hover:not(:disabled) {
  color: var(--color-text-main);
  background-color: rgba(255, 255, 255, 0.03);
}
.advancement-btn.active {
  background-color: rgba(20, 184, 166, 0.15);
  color: var(--color-accent);
  border: 1px solid rgba(20, 184, 166, 0.3);
  box-shadow: 0 0 10px rgba(20, 184, 166, 0.08);
}
.advancement-btn:disabled {
  cursor: not-allowed;
}
.advancement-btn.active:disabled {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--color-text-muted);
  border-color: transparent;
}

/* Card Action / Footer */
.match-action {
  margin-top: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.match-action .btn-submit-prediction {
  padding: 0.6rem;
  font-size: 0.85rem;
}

/* Result Info Panel for Finalized matches */
.match-result-info {
  background-color: rgba(2, 6, 23, 0.3);
  border-radius: var(--border-radius-sm);
  padding: 0.6rem;
  text-align: center;
  font-size: 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.03);
}
.match-result-info .result-label {
  color: var(--color-text-dimmed);
}
.match-result-info .result-score {
  font-weight: 700;
  color: var(--color-accent);
}
.match-points-awarded {
  margin-top: 0.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
}
.match-points-awarded.points-earned {
  background-color: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}
.match-points-awarded.points-none {
  background-color: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.deadline-lock-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  color: var(--color-warning);
  padding: 0.4rem;
  background-color: rgba(245, 158, 11, 0.05);
  border-radius: var(--border-radius-sm);
  border: 1px solid rgba(245, 158, 11, 0.15);
  text-align: center;
}

/* Lock state card overlays */
.match-card.card-locked {
  border-color: rgba(255, 255, 255, 0.03);
}
.match-card.card-locked:hover {
  transform: none;
  box-shadow: var(--shadow-sm);
  border-color: rgba(255, 255, 255, 0.03);
}

/* Loading Spinner style */
.loading-spinner {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem;
  color: var(--color-text-muted);
  font-size: 1.1rem;
}

/* ==========================================================================
   LEADERBOARD STANDINGS TABLE
   ========================================================================== */
.leaderboard-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: var(--glass-blur);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  padding: 2rem;
}
.leaderboard-card .card-header {
  margin-bottom: 2rem;
}
.leaderboard-card h2 {
  font-family: var(--font-title);
  font-size: 1.6rem;
  font-weight: 800;
}
.leaderboard-card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.leaderboard-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}
.leaderboard-table th, 
.leaderboard-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.leaderboard-table th {
  font-family: var(--font-title);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--color-text-dimmed);
  letter-spacing: 0.05em;
}

.leaderboard-table tbody tr {
  transition: var(--transition-fast);
}
.leaderboard-table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

.col-rank { width: 8%; font-weight: 800; }
.col-user { width: 34%; font-weight: 600; }
.col-points { width: 14%; font-weight: 800; font-size: 1.1rem; color: var(--color-accent); }
.col-exact { width: 16%; text-align: center; }
.col-diff { width: 16%; text-align: center; }
.col-champ { width: 12%; text-align: center; }

/* Podium Highlights */
.leaderboard-table tbody tr:nth-child(1) .col-rank { color: #f59e0b; font-size: 1.2rem; } /* Gold */
.leaderboard-table tbody tr:nth-child(2) .col-rank { color: #94a3b8; font-size: 1.1rem; } /* Silver */
.leaderboard-table tbody tr:nth-child(3) .col-rank { color: #b45309; font-size: 1.05rem; } /* Bronze */

.champ-badge {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
}
.champ-badge.badge-guessed {
  background-color: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}
.champ-badge.badge-none {
  background-color: rgba(255, 255, 255, 0.04);
  color: var(--color-text-dimmed);
}

.table-loading {
  text-align: center;
  padding: 3rem !important;
  color: var(--color-text-muted);
}

/* ==========================================================================
   TOAST NOTIFICATIONS
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 380px;
  width: 100%;
  pointer-events: none;
}

.toast {
  background-color: rgba(13, 22, 43, 0.85);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--card-border);
  color: #fff;
  padding: 1rem 1.25rem;
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  animation: slideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  position: relative;
  overflow: hidden;
  pointer-events: auto;
}

.toast::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
}

.toast-success::before { background-color: var(--color-success); }
.toast-error::before { background-color: var(--color-danger); }
.toast-info::before { background-color: var(--color-accent); }

.toast-content {
  font-size: 0.9rem;
  font-weight: 500;
}
.toast-close {
  background: none;
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  color: var(--color-text-muted);
  transition: var(--transition-fast);
}
.toast-close:hover {
  color: #fff;
}

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
  from { transform: translateX(120%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* ==========================================================================
   ADMIN PANEL STYLES
   ========================================================================== */
.match-card.card-admin {
  border-color: rgba(245, 158, 11, 0.25);
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.03);
}
.match-card.card-admin:hover {
  border-color: var(--color-warning);
  box-shadow: var(--shadow-md), 0 0 20px rgba(245, 158, 11, 0.08);
}
.match-card.card-admin .score-input {
  border-color: rgba(245, 158, 11, 0.3);
}
.match-card.card-admin .score-input:focus {
  border-color: var(--color-warning);
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.3);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
  }
  .nav-user-stats {
    justify-content: space-around;
  }
  .dashboard-container {
    padding: 1rem;
  }
  .leaderboard-card {
    padding: 1rem;
  }
  .matches-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   ADMIN CREATION FORM & OPERATIONAL PANEL
   ========================================================================== */
.admin-creation-card {
  border-color: rgba(99, 102, 241, 0.35);
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.05);
}

.admin-creation-card:hover {
  border-color: rgba(99, 102, 241, 0.6);
  box-shadow: var(--shadow-md), 0 0 25px rgba(99, 102, 241, 0.1);
}

.admin-creation-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
}

.teams-form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 0.5rem;
}

.team-fieldset {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius-sm);
  padding: 1.25rem;
  background-color: rgba(2, 6, 23, 0.25);
}

.team-fieldset legend {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-accent);
  padding: 0 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group-row {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.form-subgroup {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.form-subgroup label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Premium Styling for Inputs & Select inside the Admin Form */
.admin-creation-form input[type="text"],
.admin-creation-form input[type="datetime-local"],
.admin-creation-form select {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: rgba(2, 6, 23, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-sm);
  color: #fff;
  outline: none;
  font-size: 0.95rem;
  transition: var(--transition-normal);
}

.admin-creation-form input[type="text"]:focus,
.admin-creation-form input[type="datetime-local"]:focus,
.admin-creation-form select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.25);
  background-color: rgba(2, 6, 23, 0.7);
}

.admin-creation-form select option {
  background-color: var(--bg-app);
  color: #fff;
}

/* Admin badge styles */
.admin-badge {
  background-color: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: var(--color-warning);
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.1);
}