/* ================================================
   DESIGN SYSTEM - DARK RED HARDCORE
   ================================================ */

:root {
  /* Colors */
  --color-primary: #b31900;
  --color-primary-hover: #cc1f00;
  --color-primary-active: #8f1400;
  --color-primary-light: rgba(179, 25, 0, 0.1);

  --color-bg-primary: #121212;
  --color-bg-secondary: #1a1a1a;
  --color-bg-tertiary: #222222;
  --color-border: #2a2a2a;
  --color-border-light: #333333;

  --color-text-primary: #e0e0e0;
  --color-text-secondary: #a0a0a0;
  --color-text-muted: #707070;

  --color-success: #1db954;
  --color-warning: #ff9800;
  --color-danger: #f44336;
  --color-void: #555555;

  /* Typography */
  --font-family: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 14px;
  --font-size-xs: 12px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --font-size-2xl: 32px;

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
  --shadow-primary: 0 4px 12px rgba(179, 25, 0, 0.4);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
}

/* ================================================
   RESET & BASE
   ================================================ */

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

html {
  font-size: var(--font-size-base);
  line-height: 1.5;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ================================================
   TYPOGRAPHY
   ================================================ */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h1 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-md);
}

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

a:hover {
  color: var(--color-primary-hover);
}

/* ================================================
   LAYOUT
   ================================================ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

.container-fluid {
  width: 100%;
  padding: var(--spacing-lg);
}

/* Header */
.header {
  background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
  border-bottom: 2px solid var(--color-primary);
  padding: var(--spacing-lg) 0;
  box-shadow: var(--shadow-md);
}

.header-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.header-logo {
  width: 200px;
  height: 200px;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.header-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

/* ================================================
   FORMS & INPUTS
   ================================================ */

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--spacing-md);
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-textarea {
  resize: vertical;
  min-height: 200px;
  font-family: 'Courier New', monospace;
}

.form-hint {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

/* ================================================
   BUTTONS
   ================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  text-align: center;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-active) 100%);
  color: white;
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--color-primary-hover) 0%, var(--color-primary) 100%);
  box-shadow: 0 6px 16px rgba(179, 25, 0, 0.5);
  transform: translateY(-2px);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: var(--shadow-primary);
}

.btn-success {
  background-color: var(--color-success);
  color: white;
}

.btn-success:hover:not(:disabled) {
  background-color: #1ed760;
  transform: translateY(-2px);
}

.btn-danger {
  background-color: var(--color-danger);
  color: white;
}

.btn-danger:hover:not(:disabled) {
  background-color: #f55a4e;
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-border);
  border-color: var(--color-border-light);
}

.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
}

.btn-block {
  width: 100%;
}

/* ================================================
   CARDS
   ================================================ */

.card {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.card-header {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.card-body {
  color: var(--color-text-primary);
}

/* ================================================
   LOGIN PAGE
   ================================================ */

.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: var(--spacing-lg);
}

.login-card {
  width: 100%;
  max-width: 400px;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-lg);
}

.login-title {
  text-align: center;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xl);
  font-size: var(--font-size-2xl);
}

.login-error {
  background-color: rgba(244, 67, 54, 0.1);
  border: 1px solid var(--color-danger);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  color: var(--color-danger);
  font-size: var(--font-size-sm);
}

/* ================================================
   ADMIN DASHBOARD
   ================================================ */

.admin-nav {
  background-color: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
  margin-bottom: var(--spacing-xl);
}

.admin-nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.admin-title {
  color: var(--color-primary);
  font-size: var(--font-size-xl);
}

.section {
  margin-bottom: var(--spacing-2xl);
}

.section-title {
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

/* Match List */
.match-list {
  display: grid;
  gap: var(--spacing-md);
}

.match-card {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-normal);
}

.match-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-primary);
}

.match-info {
  margin-bottom: var(--spacing-md);
}

.match-round {
  display: inline-block;
  background-color: var(--color-primary);
  color: white;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  margin-bottom: var(--spacing-sm);
}

.match-players {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
}

.player-name {
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.player-platform {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--color-bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  text-transform: uppercase;
}

.vs-text {
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
}

.match-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.match-status {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
}

.match-status.completed {
  background-color: rgba(29, 185, 84, 0.2);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.match-status.void {
  background-color: rgba(85, 85, 85, 0.2);
  color: var(--color-void);
  border: 1px solid var(--color-void);
}

.match-status.bye {
  background-color: rgba(255, 152, 0, 0.2);
  color: var(--color-warning);
  border: 1px solid var(--color-warning);
}

/* Podium */
.podium {
  background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
}

.podium-winner {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  text-shadow: 0 2px 8px rgba(179, 25, 0, 0.5);
}

.podium-trophy {
  font-size: 64px;
  margin-bottom: var(--spacing-md);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.1);
  }
}

/* ================================================
   BRACKET VISUALIZATION
   ================================================ */

.bracket-container {
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  overflow-x: auto;
  overflow-y: visible;
  margin-bottom: var(--spacing-xl);
}

.bracket {
  display: flex;
  gap: var(--spacing-2xl);
  min-width: min-content;
  padding: var(--spacing-lg);
}

.bracket-round {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  min-width: 200px;
}

.bracket-round-title {
  text-align: center;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.bracket-match {
  background-color: var(--color-bg-tertiary);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin: var(--spacing-md) 0;
  min-height: 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  transition: all var(--transition-normal);
  position: relative;
}

.bracket-match.ready {
  border-color: var(--color-primary);
  box-shadow: 0 0 12px rgba(179, 25, 0, 0.3);
  animation: glow 2s ease-in-out infinite;
}

@keyframes glow {

  0%,
  100% {
    box-shadow: 0 0 12px rgba(179, 25, 0, 0.3);
  }

  50% {
    box-shadow: 0 0 20px rgba(179, 25, 0, 0.6);
  }
}

.bracket-match.completed {
  border-color: var(--color-success);
}

.bracket-match.void {
  border-color: var(--color-void);
  opacity: 0.6;
}

.bracket-match.bye {
  border-color: var(--color-warning);
  border-style: dashed;
}

.bracket-player {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  margin: var(--spacing-xs) 0;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: background-color var(--transition-fast);
}

.bracket-player.winner {
  background-color: rgba(29, 185, 84, 0.2);
  color: var(--color-success);
  font-weight: var(--font-weight-bold);
}

.bracket-player.loser {
  color: var(--color-text-muted);
  text-decoration: line-through;
}

.bracket-player.empty {
  color: var(--color-text-muted);
  font-style: italic;
}

.bracket-player-platform {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin-left: var(--spacing-xs);
}

/* Player Avatar */
.player-avatar {
  width: 32px;
  height: 32px;
  border-radius: 4px;
  margin-right: var(--spacing-sm);
  vertical-align: middle;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  display: inline-block;
}

.player-nickname {
  flex: 1;
}

/* Legend */
.bracket-legend {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
  padding: var(--spacing-md);
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
}

.legend-box {
  width: 20px;
  height: 20px;
  border-radius: var(--radius-sm);
  border: 2px solid;
}

.legend-box.ready {
  border-color: var(--color-primary);
}

.legend-box.completed {
  border-color: var(--color-success);
}

.legend-box.void {
  border-color: var(--color-void);
}

.legend-box.bye {
  border-color: var(--color-warning);
  border-style: dashed;
}

/* ================================================
   UTILITIES
   ================================================ */

.text-center {
  text-align: center;
}

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

.text-danger {
  color: var(--color-danger);
}

.text-success {
  color: var(--color-success);
}

.mb-0 {
  margin-bottom: 0;
}

.mb-1 {
  margin-bottom: var(--spacing-sm);
}

.mb-2 {
  margin-bottom: var(--spacing-md);
}

.mb-3 {
  margin-bottom: var(--spacing-lg);
}

.mb-4 {
  margin-bottom: var(--spacing-xl);
}

.mt-0 {
  margin-top: 0;
}

.mt-1 {
  margin-top: var(--spacing-sm);
}

.mt-2 {
  margin-top: var(--spacing-md);
}

.mt-3 {
  margin-top: var(--spacing-lg);
}

.mt-4 {
  margin-top: var(--spacing-xl);
}

.hidden {
  display: none !important;
}

.flex {
  display: flex;
}

.flex-column {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.gap-sm {
  gap: var(--spacing-sm);
}

.gap-md {
  gap: var(--spacing-md);
}

.gap-lg {
  gap: var(--spacing-lg);
}

/* ================================================
   RESPONSIVE
   ================================================ */

@media (max-width: 768px) {
  :root {
    --font-size-base: 14px;
    --font-size-xl: 20px;
    --font-size-2xl: 26px;
  }

  .container {
    padding: var(--spacing-md);
  }

  .header-logo {
    width: 40px;
    height: 40px;
  }

  .header-title {
    font-size: var(--font-size-xl);
  }

  .match-players {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  .match-actions {
    flex-direction: column;
  }

  .match-actions .btn {
    width: 100%;
  }

  .bracket {
    gap: var(--spacing-lg);
  }

  .bracket-round {
    min-width: 180px;
  }

  .bracket-legend {
    flex-direction: column;
    align-items: flex-start;
  }

  .player-avatar {
    width: 24px;
    height: 24px;
  }
}

/* Tablet */
@media (min-width: 769px) and (max-width: 1024px) {
  .container {
    max-width: 900px;
  }

  .bracket-round {
    min-width: 180px;
  }
}

/* ================================================
   SCROLLBAR STYLING
   ================================================ */

::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-border-light);
}

/* ================================================
   LOADING ANIMATION
   ================================================ */

.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.loading-spinner {
  width: 60px;
  height: 60px;
  border: 6px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}