/**
 * Canoe Timing Design System - Header Component
 *
 * App header s charakteristickým stylem:
 * - 4px barevny bar vlevo s glow efektem
 * - Status indikatory (TCP/UDP/XML)
 * - LIVE badge se slalomovymi pruhy
 */

/* ==========================================================================
   APP HEADER
   ========================================================================== */

.app-header {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  padding-left: calc(var(--space-4) + var(--header-bar-width, 4px) + var(--space-3));
  background-color: var(--color-bg-surface);
  border-bottom: none;
  min-height: 56px;
}

/* Spodni okraj headeru - rovná čára s vlnkou na konci */
.app-header::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: var(--pattern-wave-height, 4px);
  background:
    /* Rovná čára (vlevo, většina šířky) */
    linear-gradient(var(--color-border), var(--color-border)) 0 50% / calc(100% - 40px) 2px no-repeat,
    /* Vlnka (vpravo) - v barve borderu */
    var(--pattern-wave-border) right center / 40px var(--pattern-wave-height) no-repeat;
}

/* Barevny bar vlevo */
.app-header::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--header-bar-width, 4px);
  background: var(--color-accent);
  box-shadow: var(--header-bar-glow, 0 0 20px rgba(0, 136, 255, 0.4));
}

/* Header content areas */
.header-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.header-title {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

/* Larger title variant for admin dashboards (c123-server style) */
.header-title-lg {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
}

.header-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 1;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
}

/* ==========================================================================
   STATUS INDICATORS
   ========================================================================== */

.header-status {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
}

/* ==========================================================================
   MINIMAL STATUS ITEM (admin dashboard style)
   Jednoduchý status: dot + label, bez badge stylu
   ========================================================================== */

.header-status-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.header-status-item .status-dot {
  flex-shrink: 0;
}

/* ==========================================================================
   PORT DISPLAY
   ========================================================================== */

.header-port {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
}

/* ==========================================================================
   SIMPLE LIVE INDICATOR (alternative to badge-live)
   Pro projekty kde gate pole animace nedává smysl
   ========================================================================== */

.header-live {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-success);
  font-weight: var(--font-weight-medium);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.header-live .status-dot {
  flex-shrink: 0;
}

.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-2);
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.status-indicator-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background-color: var(--color-text-muted);
  transition: all var(--transition-fast);
}

/* Connected state */
.status-indicator.connected .status-indicator-dot {
  background-color: var(--color-success);
  box-shadow: var(--glow-success);
}

.status-indicator.connected {
  border-color: var(--color-success);
  color: var(--color-text-primary);
}

/* Connecting state - pulsing */
.status-indicator.connecting .status-indicator-dot {
  background-color: var(--color-warning);
  animation: pulse-glow 1.5s ease-in-out infinite;
}

.status-indicator.connecting {
  border-color: var(--color-warning);
}

/* Disconnected state */
.status-indicator.disconnected .status-indicator-dot {
  background-color: var(--color-error);
}

.status-indicator.disconnected {
  border-color: var(--color-border);
  opacity: 0.7;
}

/* Pulse animation */
@keyframes pulse-glow {
  0%, 100% {
    opacity: 1;
    box-shadow: 0 0 4px var(--color-warning);
  }
  50% {
    opacity: 0.5;
    box-shadow: 0 0 8px var(--color-warning);
  }
}

/* ==========================================================================
   SLALOM GATE POLE - pruhovaná tyčka jako indikátor
   ========================================================================== */

/*
 * Slalomová branka = svislá tyčka s horizontálními pruhy (bílo-barevná)
 * Čisté proporce: 5px šířka, 3px pruhy
 */

.gate-pole {
  display: inline-block;
  width: 5px;
  height: 18px;
  border-radius: 2.5px 2.5px 1px 1px;
  background: repeating-linear-gradient(
    to bottom,
    #ffffff 0px,
    #ffffff 3px,
    var(--color-success) 3px,
    var(--color-success) 6px
  );
  box-shadow:
    1px 0 0 rgba(0, 0, 0, 0.1),
    0 0 6px var(--glow-success);
}

.gate-pole-success {
  background: repeating-linear-gradient(
    to bottom,
    #ffffff 0px,
    #ffffff 3px,
    var(--color-success) 3px,
    var(--color-success) 6px
  );
  box-shadow:
    1px 0 0 rgba(0, 0, 0, 0.1),
    0 0 6px rgba(0, 210, 106, 0.4);
}

.gate-pole-warning {
  background: repeating-linear-gradient(
    to bottom,
    #ffffff 0px,
    #ffffff 3px,
    var(--color-warning) 3px,
    var(--color-warning) 6px
  );
  box-shadow:
    1px 0 0 rgba(0, 0, 0, 0.1),
    0 0 6px rgba(255, 149, 0, 0.4);
  animation: pole-pulse 1.5s ease-in-out infinite;
}

.gate-pole-error {
  background: repeating-linear-gradient(
    to bottom,
    #ffffff 0px,
    #ffffff 3px,
    var(--color-error) 3px,
    var(--color-error) 6px
  );
  box-shadow:
    1px 0 0 rgba(0, 0, 0, 0.1),
    0 0 6px rgba(255, 59, 48, 0.4);
}

.gate-pole-info {
  background: repeating-linear-gradient(
    to bottom,
    #ffffff 0px,
    #ffffff 3px,
    var(--color-accent) 3px,
    var(--color-accent) 6px
  );
  box-shadow:
    1px 0 0 rgba(0, 0, 0, 0.1),
    0 0 6px rgba(0, 136, 255, 0.4);
}

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

/* ==========================================================================
   LIVE BADGE - s pruhovanou tyčkou
   ========================================================================== */

.badge-live {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 10px 6px 16px;
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-primary);
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  overflow: visible;
}

/* Pruhovaná tyčka - visí shora */
.badge-live::before {
  content: '';
  position: absolute;
  left: 6px;
  top: -4px;
  width: 5px;
  height: calc(100% + 4px);
  /* Zaoblený vrch (jako závěs) */
  border-radius: 2.5px 2.5px 1px 1px;
  /* Čisté pruhy - 3px bílá, 3px zelená */
  background: repeating-linear-gradient(
    to bottom,
    #ffffff 0px,
    #ffffff 3px,
    var(--color-success) 3px,
    var(--color-success) 6px
  );
  /* Jemný stín pro hloubku */
  box-shadow:
    1px 0 0 rgba(0, 0, 0, 0.1),
    0 1px 3px rgba(0, 210, 106, 0.3);
}

/* Jemný glow efekt */
.badge-live::after {
  content: '';
  position: absolute;
  left: 4px;
  top: -6px;
  width: 9px;
  height: calc(100% + 8px);
  border-radius: 4px;
  background: transparent;
  box-shadow: 0 0 8px rgba(0, 210, 106, 0.4);
  animation: live-glow 2s ease-in-out infinite;
  pointer-events: none;
}

@keyframes live-glow {
  0%, 100% {
    opacity: 0.5;
  }
  50% {
    opacity: 1;
  }
}

/* ==========================================================================
   HEADER VARIANTS
   ========================================================================== */

/* Compact header */
.app-header.header-compact {
  padding: var(--space-2) var(--space-3);
  padding-left: calc(var(--space-3) + var(--header-bar-width, 4px) + var(--space-2));
  min-height: 44px;
}

.app-header.header-compact .header-title {
  font-size: var(--text-base);
}

/* Header bez baru (plain) */
.app-header.header-plain::before {
  display: none;
}

.app-header.header-plain {
  padding-left: var(--space-4);
}

/* Header s elevated efektem */
.app-header.header-elevated {
  box-shadow: var(--shadow-md);
  border-bottom: none;
}

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

@media (max-width: 640px) {
  .app-header {
    flex-wrap: wrap;
    gap: var(--space-3);
  }

  .header-status {
    order: 3;
    width: 100%;
    justify-content: flex-start;
  }

  .header-actions {
    order: 2;
  }
}

/* ==========================================================================
   REDUCED MOTION
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  .status-indicator.connecting .status-indicator-dot,
  .badge-live,
  .badge-live::before {
    animation: none;
  }
}