/**
 * Header component styles.
 * Navigation header with logo, search bar, navigation tags, and user controls.
 */

.header {
  height: 60px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-lg) 0 0;
  background-color: var(--color-bg-elevated);
  z-index: var(--z-sticky);
  width: 100%;
  contain: layout paint;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: flex-start; /* Prevent auto spacing between items */
  width: 100%;
  height: 100%;
  gap: 0; /* Remove auto gaps; use explicit margins for precise spacing */
}

.header__brand {
  /* Match the left sidebar's outer width (300px inner + horizontal padding + border) */
  width: 369px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-base);
  padding-left: var(--space-lg);
  border-right: 1px solid var(--color-border);
  margin-right: 16px; /* Keep search 16px after the vertical divider */
  flex-shrink: 0;
  text-decoration: none;
  /* Transform handled by base micro-interactions; keep opacity here */
  transition: opacity var(--transition-fast);
}

.header__brand:hover {
  opacity: 0.8;
}

.header__logo-flag {
  flex-shrink: 0;
  height: 32px;
  width: auto;
  display: block;
}

.header__logo-text {
  display: block;
  color: var(--color-text);
}

.header__search {
  display: flex;
  align-items: center;
  background-color: var(--color-bg-muted);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-xl);
  min-width: 260px;
  max-width: 500px;
  flex: 1 1 auto;
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-fast);
  margin-right: var(--space-md); /* Manual spacing now that gap is removed */
  position: relative; /* Anchor the clear button positioning */
  contain: layout paint;
}

.header__search-form {
  width: 100%;
  flex: 1;
}

.header__search:focus-within {
  border-color: var(--color-primary);
}

.header__search-input:focus {
  outline: none;
}

.header__search-icon {
  flex-shrink: 0;
  opacity: 0.6;
}

.header__search-input {
  border: none;
  background: transparent;
  margin-left: var(--space-sm);
  outline: none;
  width: 100%;
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-family: inherit;
  box-shadow: none;
  padding-right: calc(var(--space-xl) + 6px); /* Extra room to avoid clipping clear (x) */
}

.header__search-input::-webkit-search-cancel-button {
  position: relative;
  right: 0; /* Keep fully visible inside the field */
}

.header__search-input:focus {
  outline: none;
  box-shadow: none;
  border: none;
}

.header__search-input::placeholder {
  color: var(--color-text-muted);
}

.header__tags {
  /* Push tag list + following actions to the right, but allow tags to shrink
     so the actions (theme switch) never get pushed off-screen. */
  flex: 0 1 auto;
  min-width: 0;
  margin-left: auto;
  margin-right: var(--space-md); /* Space before theme/actions */
}

.header__tags-list {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  list-style: none;
  /* Prevent wrapping (which can force overflow) and allow clipping on mid widths */
  flex-wrap: nowrap;
  /* overflow: hidden;*/
}

.header__tags-item {
  display: flex;
}

.header__tags-link {
  display: block;
  padding: var(--space-xs) var(--space-sm);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  /* Transform handled by base micro-interactions; keep visual transitions here */
  transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  font-family: inherit;
}

/* Slight "lift" on hover for pill tags (in addition to scale) */
.header__tags-link {
  --ui-hover-transform: scale(1.02);
  --ui-active-transform: scale(0.95);
}

/* Trabalhar - Blue */
.header__tags-link--trabalhar {
  color: #2563eb;
  border-color: #2563eb;
}

.header__tags-link--trabalhar:hover {
  background-color: #2563eb;
  color: var(--color-text-inverse);
}

/* Relaxar - Purple */
.header__tags-link--relaxar {
  color: #9333ea;
  border-color: #9333ea;
}

.header__tags-link--relaxar:hover {
  background-color: #9333ea;
  color: var(--color-text-inverse);
}

/* Ginásio - Teal */
.header__tags-link--ginasio {
  color: #0d9488;
  border-color: #0d9488;
}

.header__tags-link--ginasio:hover {
  background-color: #0d9488;
  color: var(--color-text-inverse);
}

/* Viagem - Orange */
.header__tags-link--viagem {
  color: #ea580c;
  border-color: #ea580c;
}

.header__tags-link--viagem:hover {
  background-color: #ea580c;
  color: var(--color-text-inverse);
}

/* Notícias - Red/Orange */
.header__tags-link--noticias {
  color: #dc2626;
  border-color: #dc2626;
}

.header__tags-link--noticias:hover {
  background-color: #dc2626;
  color: var(--color-text-inverse);
}

/* Dormir - Indigo/Blue */
.header__tags-link--dormir {
  color: #4f46e5;
  border-color: #4f46e5;
}

.header__tags-link--dormir:hover {
  background-color: #4f46e5;
  color: var(--color-text-inverse);
}

[data-theme="dark"] .header__tags-link--trabalhar {
  color: #93c5fd;
  border-color: #93c5fd;
}

[data-theme="dark"] .header__tags-link--trabalhar:hover {
  background-color: #93c5fd;
  color: var(--color-text-inverse);
}

[data-theme="dark"] .header__tags-link--relaxar {
  color: #d8b4fe;
  border-color: #d8b4fe;
}

[data-theme="dark"] .header__tags-link--relaxar:hover {
  background-color: #d8b4fe;
  color: var(--color-text-inverse);
}

[data-theme="dark"] .header__tags-link--ginasio {
  color: #5eead4;
  border-color: #5eead4;
}

[data-theme="dark"] .header__tags-link--ginasio:hover {
  background-color: #5eead4;
  color: var(--color-text-inverse);
}

[data-theme="dark"] .header__tags-link--viagem {
  color: #fdba74;
  border-color: #fdba74;
}

[data-theme="dark"] .header__tags-link--viagem:hover {
  background-color: #fdba74;
  color: var(--color-text-inverse);
}

[data-theme="dark"] .header__tags-link--noticias {
  color: #fca5a5;
  border-color: #fca5a5;
}

[data-theme="dark"] .header__tags-link--noticias:hover {
  background-color: #fca5a5;
  color: var(--color-text-inverse);
}

[data-theme="dark"] .header__tags-link--dormir {
  color: #a5b4fc;
  border-color: #a5b4fc;
}

[data-theme="dark"] .header__tags-link--dormir:hover {
  background-color: #a5b4fc;
  color: var(--color-text-inverse);
}

.header__tags-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-shrink: 0;
}

/* Mid-width safety: allow search to shrink more before we hide header features */
@media (max-width: 1150px) {
  .header__search {
    min-width: 0;
  }

  .header__tags-list {
    gap: var(--space-xs);
  }

  .header__tags-link {
    padding: var(--space-xs) var(--space-xs);
  }
}

.header__theme-switch {
  width: 60px;
  height: 30px;
  background-color: #e0e0e0;
  border-radius: 15px;
  position: relative;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5px;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
  border: none;
  contain: layout paint;
}

.header__theme-icon {
  width: 16px;
  height: 16px;
  z-index: 1;
  opacity: 0.5;
  flex-shrink: 0;
}

.header__theme-knob {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 26px;
  height: 26px;
  background-color: var(--color-bg-elevated);
  /* Theme switch icon handled via CSS or inline style */
  background-size: cover;
  border-radius: 50%;
  transition: transform var(--transition-slow), box-shadow var(--transition-fast);
  box-shadow: var(--shadow-md);
  z-index: 2;
  will-change: transform;
}

.header__theme-switch:hover .header__theme-knob {
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.header__theme-switch:active .header__theme-knob {
  transform: scale(0.95);
}

[data-theme="dark"] .header__theme-knob {
  transform: translateX(30px);
}

[data-theme="dark"] .header__theme-switch:active .header__theme-knob {
  transform: translateX(30px) scale(0.95);
}

.header__profile-icon {
  display: none; /* Always hide user profile button - login/user not implemented */
  border-radius: 50%;
  cursor: pointer;
  transition: opacity var(--transition-fast);
}

.header__profile-icon:hover {
  opacity: 0.8;
}

/* Theme button (mobile - single button showing current theme) */
.header__theme-button {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background-color: var(--color-bg-elevated);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
  flex-shrink: 0;
  contain: layout paint;
}

.header__theme-button:hover {
  background-color: var(--color-bg-muted);
  border-color: var(--color-border-hover);
}

.header__theme-button {
  --ui-hover-transform: scale(1.03);
  --ui-active-transform: scale(0.98);
}

.header__theme-button-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* Responsive: When sidebar disappears (1024px) */
@media (max-width: 1024px) {
  .header__logo-text--desktop {
    display: none;
  }

  .header__brand {
    width: auto;
    border-right: none;
    margin-right: 0;
    padding-left: var(--space-sm);
  }

  .header__logo-flag {
    height: 32px;
    width: auto;
    max-width: 32px;
    object-fit: contain;
  }

  /* Hide header tags list when sidebar is hidden */
  .header__tags-list {
    display: none;
  }

  /* Hide toggle switch, show button */
  .header__theme-switch {
    display: none;
  }

  .header__theme-button {
    display: flex;
  }

  /* Reorder: search first, then theme button */
  .header__search {
    order: 1;
    flex: 1;
    min-width: 0;
    width: auto;
  }

  .header__actions {
    order: 2;
    gap: var(--space-sm);
  }
}

/* Responsive: Mobile (768px and below) */
@media (max-width: 768px) {
  .header {
    height: auto;
    min-height: 60px;
    padding: var(--space-sm);
  }

  .header__inner {
    flex-wrap: wrap;
    gap: var(--space-sm);
  }

  .header__brand {
    display: none; /* Hide header brand completely in mobile */
  }

  .header__brand:hover {
    transform: none;
  }

  .header__tags--desktop {
    display: none;
  }

  .header__profile-icon--desktop {
    display: none;
  }
}