/* ==========================================================================
   Design System — Congresso Regional das Testemunhas de Jeová 2027
   Preset: jw-clean-awwwards
   ========================================================================== */

:root {
  /* Color Tokens */
  --color-primary: #4a6da7;
  --color-primary-hover: #3b5887;
  --color-primary-active: #2b4c7e;
  --color-primary-light: #f0f4fa;
  --color-primary-ring: rgba(74, 109, 167, 0.22);
  
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --color-border-hover: #cbd5e1;
  
  --color-text-main: #1e293b;
  --color-text-muted: #64748b;
  --color-text-subtle: #94a3b8;
  --color-text-white: #ffffff;
  
  --color-error: #dc2626;
  --color-error-bg: #fef2f2;
  --color-error-border: #fecaca;
  
  --color-badge-bg: #eff6ff;
  --color-badge-text: #1d4ed8;

  /* Typography Scale (Fluid clamp) */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: clamp(1.25rem, 2.5vw, 1.55rem);
  --font-heading: clamp(1.1rem, 2vw, 1.35rem);
  --font-subheading: clamp(0.95rem, 1.8vw, 1.15rem);
  --font-body: clamp(0.9rem, 1.5vw, 0.95rem);
  --font-label: clamp(0.8rem, 1.2vw, 0.85rem);
  --font-caption: 0.8rem;

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

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;

  /* Shadows (Awwwards layered soft shadows) */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.06), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 25px -4px rgba(0, 0, 0, 0.08), 0 4px 8px -2px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-smooth: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Reset & Smoothness */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Header Institutional JW.ORG Style */
.app-header {
  background-color: var(--color-primary);
  color: var(--color-text-white);
  padding: clamp(20px, 3.5vw, 32px) 16px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  position: relative;
  z-index: 10;
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
}

.header-title {
  font-size: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
  line-height: 1.25;
}

.header-subtitle {
  font-size: var(--font-subheading);
  font-weight: 400;
  opacity: 0.95;
  letter-spacing: -0.01em;
}

/* Main Container */
.main-content {
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
  padding: clamp(20px, 3vw, 32px) 16px 64px;
  flex: 1;
}

/* ==========================================================================
   Gate de Acesso Restrito
   ========================================================================== */
.gate-container {
  max-width: 420px;
  margin: clamp(40px, 8vw, 70px) auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 5vw, 36px) clamp(20px, 4vw, 28px);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: var(--transition-smooth);
}

.gate-icon-wrapper {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  margin-bottom: 18px;
}

.gate-title {
  font-size: var(--font-heading);
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 6px;
}

.gate-instruction {
  font-size: var(--font-body);
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.input-group {
  text-align: left;
  margin-bottom: 20px;
}

.input-label {
  display: block;
  font-size: var(--font-label);
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text-main);
}

.password-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-password {
  width: 100%;
  min-height: 48px;
  padding: 12px 46px 12px 14px;
  border: 1px solid var(--color-border-hover);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: inherit;
  outline: none;
  background: var(--color-surface);
  color: var(--color-text-main);
  transition: var(--transition-smooth);
}

.input-password:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-ring);
}

.toggle-password-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: var(--transition-smooth);
}

.toggle-password-btn:hover {
  color: var(--color-text-main);
  background-color: var(--color-primary-light);
}

.options-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  margin-bottom: 20px;
  font-size: var(--font-label);
  color: var(--color-text-muted);
}

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.btn-submit {
  width: 100%;
  min-height: 48px;
  background-color: var(--color-primary);
  color: var(--color-text-white);
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-sm);
}

.btn-submit:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-submit:active {
  background-color: var(--color-primary-active);
  transform: translateY(0);
}

/* Shake Animation on Error */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-6px); }
  40%, 80% { transform: translateX(6px); }
}

.gate-container.shake {
  animation: shake 0.4s ease-in-out;
}

.error-banner {
  display: none;
  background-color: var(--color-error-bg);
  color: var(--color-error);
  border: 1px solid var(--color-error-border);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-size: var(--font-label);
  font-weight: 500;
  margin-top: 14px;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ==========================================================================
   Dashboard Shell (Consulta - revelada após autenticação)
   ========================================================================== */
.dashboard-shell {
  display: none;
  opacity: 0;
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.dashboard-shell.active {
  display: block;
  opacity: 1;
}

.dashboard-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

/* Segmented Control Nav Tabs */
.nav-tabs {
  display: inline-flex;
  background-color: #e2e8f0;
  padding: 4px;
  border-radius: var(--radius-full);
  gap: 4px;
}

.nav-tab {
  background: none;
  border: none;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: var(--font-label);
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-smooth);
}

.nav-tab:hover {
  color: var(--color-text-main);
}

.nav-tab.active {
  background-color: var(--color-surface);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.btn-logout {
  background: none;
  border: 1px solid var(--color-border);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: var(--font-label);
  color: var(--color-text-muted);
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-smooth);
}

.btn-logout:hover {
  background-color: var(--color-surface);
  color: var(--color-text-main);
  border-color: var(--color-border-hover);
}

/* Responsive adjustments for Gate */
@media (max-width: 480px) {
  .gate-container {
    margin: 24px auto;
    padding: 24px 18px;
  }
}

/* ==========================================================================
   Mecanismo de Busca Hero (Fase 3)
   ========================================================================== */
.search-container {
  position: relative;
  margin-bottom: clamp(24px, 4vw, 32px);
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  pointer-events: none;
}

.search-input {
  width: 100%;
  min-height: 54px;
  padding: 14px 48px 14px 50px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-hover);
  border-radius: var(--radius-md);
  font-size: var(--font-body);
  font-family: inherit;
  color: var(--color-text-main);
  box-shadow: var(--shadow-sm);
  outline: none;
  transition: var(--transition-smooth);
}

.search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-ring);
}

.clear-search-btn {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-text-subtle);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
}

.clear-search-btn:hover {
  color: var(--color-text-main);
  background-color: var(--color-primary-light);
}

/* Autocomplete Dropdown */
.autocomplete-list {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  max-height: 320px;
  overflow-y: auto;
  z-index: 50;
  display: none;
}

.autocomplete-item {
  padding: 12px 18px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #f1f5f9;
  transition: background-color 0.15s ease;
}

.autocomplete-item:last-child {
  border-bottom: none;
}

.autocomplete-item:hover,
.autocomplete-item.active {
  background-color: var(--color-primary-light);
}

.autocomplete-item .item-name {
  font-weight: 600;
  color: var(--color-text-main);
}

.autocomplete-item .item-meta {
  font-size: var(--font-label);
  color: var(--color-text-muted);
}

.autocomplete-empty {
  padding: 16px 20px;
  color: var(--color-text-muted);
  font-size: var(--font-body);
  text-align: center;
}

/* ==========================================================================
   Card de Destaque (Spotlight)
   ========================================================================== */
.spotlight-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3.5vw, 28px);
  margin-bottom: clamp(20px, 3vw, 28px);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.cong-title {
  font-size: var(--font-heading);
  font-weight: 700;
  color: #1e3a8a;
  margin-bottom: 16px;
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}

.cong-code {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

.tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--font-label);
  color: var(--color-text-main);
  font-weight: 500;
}

.tag-icon {
  display: flex;
  align-items: center;
  color: var(--color-primary);
}

.tag.tag-badge {
  background-color: var(--color-primary);
  color: var(--color-text-white);
  border: none;
  font-weight: 600;
}

.tag.tag-badge .tag-icon {
  color: var(--color-text-white);
}

/* ==========================================================================
   Grade de Congregações Companheiras
   ========================================================================== */
.companions-section {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3.5vw, 28px);
  box-shadow: var(--shadow-sm);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
  gap: 10px;
}

.section-title {
  font-size: var(--font-subheading);
  font-weight: 700;
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.title-icon {
  color: var(--color-primary);
  display: flex;
  align-items: center;
}

.count-badge {
  background-color: var(--color-badge-bg);
  color: var(--color-badge-text);
  padding: 5px 14px;
  border-radius: var(--radius-full);
  font-size: var(--font-label);
  font-weight: 600;
}

.companions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}

.companion-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: var(--transition-smooth);
}

.companion-card:hover {
  border-color: var(--color-border-hover);
  background-color: var(--color-surface);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.item-num {
  font-size: var(--font-caption);
  font-weight: 700;
  color: var(--color-text-subtle);
  width: 24px;
  flex-shrink: 0;
}

.companion-info {
  flex: 1;
  min-width: 0;
}

.companion-name {
  font-size: var(--font-body);
  font-weight: 600;
  color: var(--color-text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.companion-meta {
  font-size: var(--font-caption);
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* ==========================================================================
   Empty States
   ========================================================================== */
.empty-state {
  text-align: center;
  padding: clamp(32px, 6vw, 48px) 20px;
  background-color: var(--color-surface);
  border: 1px dashed var(--color-border-hover);
  border-radius: var(--radius-lg);
}

.empty-state-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.empty-state-text {
  font-size: var(--font-body);
  color: var(--color-text-muted);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.5;
}

/* Mobile optimizations for companions */
@media (max-width: 600px) {
  .companions-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Explorador de Congressos por Data & Calendário (Fase 5)
   ========================================================================== */
.calendar-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.filter-chip {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: var(--font-label);
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.filter-chip:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text-main);
}

.filter-chip.active {
  background-color: var(--color-primary);
  color: var(--color-text-white);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.sessions-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.session-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition-smooth);
}

.session-card:hover {
  border-color: var(--color-border-hover);
}

.session-card.expanded {
  border-color: #93c5fd;
  box-shadow: var(--shadow-md);
}

.session-header {
  width: 100%;
  background: none;
  border: none;
  padding: clamp(16px, 2.5vw, 20px);
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: inherit;
  transition: background-color 0.15s ease;
}

.session-header:hover {
  background-color: #f8fafc;
}

.session-main-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.session-date-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-subheading);
  font-weight: 700;
  color: #1e3a8a;
}

.session-icon {
  color: var(--color-primary);
  display: flex;
  align-items: center;
}

.session-meta-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.meta-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: var(--font-label);
  color: var(--color-text-muted);
  background-color: var(--color-bg);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.meta-tag.badge-auditorio {
  background-color: var(--color-primary-light);
  color: var(--color-primary-hover);
  border-color: #bfdbfe;
  font-weight: 600;
}

.tag-ico {
  display: flex;
  align-items: center;
}

.session-aside {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.session-badge {
  background-color: var(--color-badge-bg);
  color: var(--color-badge-text);
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: var(--font-caption);
  font-weight: 600;
  white-space: nowrap;
}

.session-chevron {
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  transition: transform 0.25s ease;
}

.session-card.expanded .session-chevron {
  transform: rotate(180deg);
}

.session-body {
  border-top: 1px solid var(--color-border);
  padding: clamp(16px, 2.5vw, 22px);
  background-color: #fafbfc;
}

.session-congs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 10px;
}

.session-cong-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.session-cong-info {
  flex: 1;
  min-width: 0;
}

.session-cong-name {
  font-size: var(--font-body);
  font-weight: 600;
  color: var(--color-text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.session-cong-meta {
  font-size: var(--font-caption);
  color: var(--color-text-muted);
  margin-top: 2px;
}

@media (max-width: 600px) {
  .session-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .session-aside {
    width: 100%;
    justify-content: space-between;
    margin-top: 6px;
  }
  .session-congs-grid {
    grid-template-columns: 1fr;
  }
}