/* ==========================================================================
   PoolSafe Landing Page — Design System Tokens & Styles
   Projeto Acadêmico de Conclusão de Curso (Ciência da Computação)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens (:root)
   Tokens derivados do design-system(2).md
   -------------------------------------------------------------------------- */
:root {
  /* Cores — Tema Escuro Principal */
  --color-background: #041728;
  --color-background-deep: #070E16;
  --color-surface: #072438;
  --color-surface-raised: #082E45;
  --color-surface-glass: rgba(7, 36, 56, 0.78);
  --color-surface-glass-subtle: rgba(8, 46, 69, 0.45);

  --color-border: #175464;
  --color-border-subtle: rgba(120, 167, 181, 0.20);
  --color-border-focus: #00D9E8;

  --color-text-primary: #F2FAFC;
  --color-text-secondary: #A3C2CC;
  --color-text-muted: #78A7B5;
  --color-text-disabled: #506877;

  --color-primary: #00D9E8;
  --color-primary-pressed: #00B8C6;
  --color-primary-soft: rgba(0, 217, 232, 0.12);

  --color-success: #00D8B4;
  --color-success-soft: rgba(0, 216, 180, 0.12);

  --color-warning: #F6C95C;
  --color-warning-soft: rgba(246, 201, 92, 0.12);

  --color-danger: #FF4D73;
  --color-danger-soft: rgba(255, 77, 115, 0.12);

  --color-info: #44A8FF;
  --color-info-soft: rgba(68, 168, 255, 0.12);

  --color-offline: #78909C;
  --color-offline-soft: rgba(120, 144, 156, 0.12);

  --color-overlay: rgba(0, 7, 14, 0.72);

  /* Gradientes */
  --gradient-aqua: linear-gradient(135deg, #064D6A, #033447);
  --gradient-safe: linear-gradient(135deg, #064B52, #04343A);
  --gradient-alert: linear-gradient(135deg, #3B1E35, #24192B);
  --gradient-blue: linear-gradient(135deg, #0A2852, #071D3D);
  --gradient-background: linear-gradient(180deg, #041728 0%, #02111E 100%);
  --gradient-glow: radial-gradient(circle at 50% 0%, rgba(0, 217, 232, 0.12) 0%, transparent 70%);

  /* Tipografia */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Escala Tipográfica Fluida */
  --type-display: clamp(2rem, 4vw + 1rem, 3.25rem);
  /* 32px - 52px */
  --type-heading1: clamp(1.75rem, 3vw + 0.75rem, 2.5rem);
  /* 28px - 40px */
  --type-heading2: clamp(1.35rem, 2vw + 0.5rem, 1.85rem);
  /* 22px - 30px */
  --type-heading3: clamp(1.125rem, 1vw + 0.5rem, 1.35rem);
  /* 18px - 22px */
  --type-body-large: clamp(1.05rem, 0.5vw + 0.85rem, 1.2rem);
  --type-body: 1rem;
  /* 16px */
  --type-small: 0.875rem;
  /* 14px */
  --type-caption: 0.75rem;
  /* 12px */
  --type-telemetry: 0.6875rem;
  /* 11px */

  /* Espaçamento (Base 4) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* Raios de Borda */
  --radius-small: 8px;
  --radius-medium: 12px;
  --radius-large: 16px;
  --radius-xlarge: 20px;
  --radius-panel: 24px;
  --radius-full: 999px;

  /* Transições & Movimento */
  --motion-fast: 120ms ease;
  --motion-base: 180ms ease;
  --motion-slow: 240ms cubic-bezier(0.16, 1, 0.3, 1);
  --motion-ambient: 16s ease-in-out infinite;

  /* Sombras & Profundidade */
  --shadow-low: 0 4px 16px rgba(0, 0, 0, 0.35);
  --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.45);
  --shadow-high: 0 16px 48px rgba(0, 0, 0, 0.6);
  --shadow-phone: 0 24px 60px -12px rgba(0, 0, 0, 0.75), 0 0 0 1px rgba(23, 84, 100, 0.4);

  /* Layout */
  --container-max: 1200px;
  --content-max: 720px;
  --header-height: 72px;
}

/* --------------------------------------------------------------------------
   2. Reset e Configurações Globais
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-background);
  color: var(--color-text-primary);
  line-height: 1.6;
  font-size: var(--type-body);
  background-image:
    radial-gradient(circle at 50% 0%, rgba(0, 217, 232, 0.08) 0%, transparent 60%),
    radial-gradient(circle at 100% 40%, rgba(0, 216, 180, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 0% 80%, rgba(68, 168, 255, 0.04) 0%, transparent 50%);
  background-repeat: no-repeat;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Link de acessibilidade: pular para conteúdo */
.skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  background: var(--color-primary);
  color: var(--color-background-deep);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-medium);
  font-weight: 700;
  font-size: var(--type-small);
  z-index: 9999;
  text-decoration: none;
  transition: top var(--motion-fast);
}

.skip-link:focus {
  top: 20px;
  outline: 3px solid var(--color-text-primary);
}

/* Acessibilidade de foco visual */
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

img,
svg {
  display: block;
  max-width: 100%;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul,
ol {
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   3. Elementos Decorativos Aquáticos de Fundo
   -------------------------------------------------------------------------- */
.ambient-bubbles {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.bubble {
  position: absolute;
  border-radius: var(--radius-full);
  background: radial-gradient(circle at 35% 35%, rgba(0, 217, 232, 0.25), rgba(7, 36, 56, 0.05));
  border: 1px solid rgba(0, 217, 232, 0.18);
  opacity: 0.14;
  animation: floatBubble var(--motion-ambient);
}

.bubble-1 {
  width: 140px;
  height: 140px;
  top: 15%;
  left: 8%;
  animation-duration: 22s;
}

.bubble-2 {
  width: 90px;
  height: 90px;
  top: 45%;
  right: 6%;
  animation-duration: 18s;
  animation-delay: -5s;
}

.bubble-3 {
  width: 60px;
  height: 60px;
  top: 75%;
  left: 12%;
  animation-duration: 16s;
  animation-delay: -8s;
}

.bubble-4 {
  width: 110px;
  height: 110px;
  top: 85%;
  right: 15%;
  animation-duration: 25s;
  animation-delay: -12s;
}

@keyframes floatBubble {

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

  33% {
    transform: translateY(-24px) translateX(12px) scale(1.03);
  }

  66% {
    transform: translateY(16px) translateX(-10px) scale(0.98);
  }
}

/* --------------------------------------------------------------------------
   4. Layout Utilitário
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-6);
  }
}

@media (min-width: 1200px) {
  .container {
    padding-inline: var(--space-8);
  }
}

.section {
  position: relative;
  z-index: 1;
  padding-block: var(--space-16);
}

@media (min-width: 768px) {
  .section {
    padding-block: var(--space-20);
  }
}

.section-header {
  text-align: center;
  max-width: var(--content-max);
  margin-inline: auto;
  margin-bottom: var(--space-12);
}

.section-header--left {
  text-align: left;
  margin-inline: 0;
}

.section-title {
  font-size: var(--type-heading1);
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-text-primary);
  margin-top: var(--space-3);
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: var(--type-body-large);
  color: var(--color-text-secondary);
  margin-top: var(--space-3);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   5. Componentes Base: Badges e Botões
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 4px var(--space-3);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: var(--type-telemetry);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid transparent;
  line-height: 1;
}

.badge-aqua {
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
  border-color: rgba(0, 217, 232, 0.3);
}

.badge-success {
  background-color: var(--color-success-soft);
  color: var(--color-success);
  border-color: rgba(0, 216, 180, 0.3);
}

.badge-warning {
  background-color: var(--color-warning-soft);
  color: var(--color-warning);
  border-color: rgba(246, 201, 92, 0.3);
}

.badge-danger {
  background-color: var(--color-danger-soft);
  color: var(--color-danger);
  border-color: rgba(255, 77, 115, 0.3);
}

.badge-info {
  background-color: var(--color-info-soft);
  color: var(--color-info);
  border-color: rgba(68, 168, 255, 0.3);
}

.badge-offline {
  background-color: var(--color-offline-soft);
  color: var(--color-offline);
  border-color: rgba(120, 144, 156, 0.3);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background-color: currentColor;
}

/* Botões */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 48px;
  padding: 0 var(--space-6);
  border-radius: var(--radius-medium);
  font-size: var(--type-small);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  transition: all var(--motion-fast);
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #032130;
  box-shadow: 0 4px 18px rgba(0, 217, 232, 0.25);
}

.btn-primary:hover {
  background-color: var(--color-primary-pressed);
  box-shadow: 0 6px 24px rgba(0, 217, 232, 0.4);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-surface-raised);
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-text-secondary);
  border-color: var(--color-border-subtle);
}

.btn-ghost:hover {
  background-color: var(--color-primary-soft);
  border-color: var(--color-border);
  color: var(--color-text-primary);
}

.btn-sm {
  min-height: 38px;
  padding: 0 var(--space-4);
  font-size: var(--type-small);
  border-radius: var(--radius-small);
}

/* Cards com efeito Glass moderado */
.card-glass {
  background: var(--color-surface-glass);
  background-color: var(--color-surface);
  /* Fallback sem suporte a rgba/blur */
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  padding: var(--space-6);
  box-shadow: var(--shadow-low);
  transition: border-color var(--motion-base), transform var(--motion-base), box-shadow var(--motion-base);
}

@supports (backdrop-filter: blur(12px)) or (-webkit-backdrop-filter: blur(12px)) {
  .card-glass {
    background: var(--color-surface-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }
}

.card-glass:hover {
  border-color: rgba(0, 217, 232, 0.4);
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

/* --------------------------------------------------------------------------
   6. Cabeçalho (Header)
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  background-color: rgba(4, 23, 40, 0.88);
  border-bottom: 1px solid var(--color-border-subtle);
  transition: background-color var(--motion-base), border-color var(--motion-base);
}

@supports (backdrop-filter: blur(16px)) or (-webkit-backdrop-filter: blur(16px)) {
  .site-header {
    background-color: rgba(4, 23, 40, 0.78);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
  }
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Marca / Logotipo */
.brand {
  display: flex;
  align-items: center;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-medium);
  background: var(--gradient-aqua);
  border: 1px solid rgba(0, 217, 232, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  box-shadow: 0 2px 10px rgba(0, 217, 232, 0.2);
}

.brand-logo {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-small);
  border: 1px solid rgba(0, 217, 232, 0.35);
  box-shadow: 0 2px 10px rgba(0, 217, 232, 0.2);
  object-fit: cover;
  flex-shrink: 0;
  display: block;
}

.brand-icon svg {
  width: 20px;
  height: 20px;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-text-primary);
  line-height: 1.1;
}

.brand-tag {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

/* Navegação Desktop */
.nav-desktop {
  display: none;
  align-items: center;
  gap: var(--space-6);
}

@media (min-width: 900px) {
  .nav-desktop {
    display: flex;
  }
}

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

.nav-link {
  padding: var(--space-2) var(--space-3);
  font-size: var(--type-small);
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-small);
  transition: color var(--motion-fast), background-color var(--motion-fast);
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--color-primary);
  background-color: var(--color-primary-soft);
}

.header-action {
  display: none;
}

@media (min-width: 900px) {
  .header-action {
    display: block;
  }
}

/* Menu Mobile (Hamburger) */
.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-small);
  color: var(--color-text-primary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: all var(--motion-fast);
}

@media (min-width: 900px) {
  .menu-toggle {
    display: none;
  }
}

.menu-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.menu-toggle svg {
  width: 22px;
  height: 22px;
}

.menu-toggle .icon-close {
  display: none;
}

.menu-toggle[aria-expanded="true"] .icon-open {
  display: none;
}

.menu-toggle[aria-expanded="true"] .icon-close {
  display: block;
}

/* Gaveta Mobile */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  height: calc(100vh - var(--header-height));
  height: calc(100dvh - var(--header-height));
  max-height: calc(100dvh - var(--header-height));
  background-color: rgba(4, 23, 40, 0.96);
  z-index: 999;
  border-bottom: 1px solid var(--color-border);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

@supports (backdrop-filter: blur(24px)) or (-webkit-backdrop-filter: blur(24px)) {
  .mobile-nav {
    background-color: rgba(4, 23, 40, 0.94);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
  }
}

.mobile-nav.is-open {
  display: block;
  animation: mobileNavFadeIn 0.22s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes mobileNavFadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 900px) {
  .mobile-nav {
    display: none !important;
  }
}

.mobile-nav-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding: var(--space-5) var(--space-4);
  padding-bottom: max(var(--space-8), env(safe-area-inset-bottom, 32px));
  max-width: 520px;
  margin: 0 auto;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text-primary);
  border-radius: var(--radius-medium);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  text-decoration: none;
  transition: color var(--motion-fast), border-color var(--motion-fast), background-color var(--motion-fast), transform var(--motion-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link:active {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background-color: var(--color-surface-raised);
  transform: translateX(4px);
}

.mobile-nav-arrow {
  width: 18px;
  height: 18px;
  color: var(--color-text-muted);
  transition: transform var(--motion-fast), color var(--motion-fast);
  flex-shrink: 0;
}

.mobile-nav-link:hover .mobile-nav-arrow,
.mobile-nav-link:active .mobile-nav-arrow {
  color: var(--color-primary);
  transform: translateX(3px);
}

.mobile-nav-action {
  margin-top: var(--space-2);
}

.mobile-nav-footer {
  display: flex;
  justify-content: center;
  padding-top: var(--space-2);
}

.mobile-nav-footer .badge {
  font-size: 0.72rem;
  text-align: center;
}

/* --------------------------------------------------------------------------
   7. Hero Section
   -------------------------------------------------------------------------- */
.hero {
  padding-top: calc(var(--header-height) + var(--space-12));
  padding-bottom: var(--space-16);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  align-items: center;
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-12);
  }
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-title {
  font-size: var(--type-display);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-text-primary);
  letter-spacing: -0.03em;
  margin-top: var(--space-4);
  margin-bottom: var(--space-4);
}

.hero-title-highlight {
  color: var(--color-primary);
  background: linear-gradient(135deg, #00D9E8 0%, #00D8B4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: var(--type-body-large);
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: var(--space-8);
  max-width: 580px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.hero-disclaimer-note {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--type-caption);
  color: var(--color-text-muted);
  line-height: 1.5;
  max-width: 520px;
}

.hero-disclaimer-note svg {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  color: var(--color-primary);
  margin-top: 2px;
}

/* Mockup de Smartphone na Hero */
.hero-visual {
  display: flex;
  justify-content: center;
  position: relative;
}

.hero-visual-glow {
  position: absolute;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(0, 217, 232, 0.16) 0%, rgba(0, 216, 180, 0.04) 50%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  filter: blur(30px);
}

/* Smartphone Frame */
.phone-frame {
  width: 100%;
  max-width: 310px;
  background-color: #03121F;
  border-radius: 40px;
  border: 9px solid #082E45;
  box-shadow: var(--shadow-phone);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--motion-base), box-shadow var(--motion-base), border-color var(--motion-base);
}

.phone-frame:hover {
  transform: translateY(-4px);
  border-color: #0E3E5B;
  box-shadow: 0 32px 70px -12px rgba(0, 0, 0, 0.85), 0 0 30px rgba(0, 217, 232, 0.2);
}

/* Alto-falante sutil no chassis superior */
.phone-speaker {
  position: absolute;
  top: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 44px;
  height: 3px;
  background-color: rgba(3, 18, 31, 0.85);
  border-radius: var(--radius-full);
  z-index: 20;
}

.phone-screen {
  width: 100%;
  position: relative;
  overflow: hidden;
  border-radius: 29px;
  background-color: #041728;
  display: flex;
  flex-direction: column;
}

/* Reflexo sutil de vidro na tela */
.phone-screen::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0) 50%);
  pointer-events: none;
  z-index: 5;
  border-radius: 29px;
}

.phone-screen-image {
  width: 100%;
  height: auto;
  aspect-ratio: 1080 / 2400;
  object-fit: cover;
  display: block;
  border-radius: 29px;
}

/* Interface Simulada do App (Placeholder Sofisticado) */
.app-ui-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.app-ui-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

.app-ui-user-icon {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-full);
  background-color: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
}

.app-ui-user-icon svg {
  width: 14px;
  height: 14px;
}

/* MonitoringStatusPill */
.monitoring-status-pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: var(--radius-medium);
  background: var(--gradient-safe);
  border: 1px solid rgba(0, 216, 180, 0.4);
  margin-bottom: 12px;
  box-shadow: 0 4px 12px rgba(0, 216, 180, 0.15);
}

.pill-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background-color: var(--color-success);
  box-shadow: 0 0 8px var(--color-success);
}

.pill-text {
  font-size: 0.8rem;
  font-weight: 700;
  color: #D6FFF5;
}

.pill-subtext {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: rgba(214, 255, 245, 0.7);
}

/* Metrics Row */
.app-metrics-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-bottom: 12px;
}

.app-metric-card {
  background-color: rgba(7, 36, 56, 0.8);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-small);
  padding: 6px 4px;
  text-align: center;
}

.app-metric-val {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.1;
}

.app-metric-label {
  font-size: 0.6rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* Camera Card Preview */
.app-camera-card-preview {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  padding: 8px;
  margin-bottom: 10px;
}

.camera-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.camera-card-name {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.camera-feed-box {
  height: 90px;
  background: linear-gradient(135deg, #06344A 0%, #031D2A 100%);
  border-radius: var(--radius-small);
  border: 1px solid rgba(23, 84, 100, 0.6);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.feed-water-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 217, 232, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 217, 232, 0.08) 1px, transparent 1px);
  background-size: 16px 16px;
}

.feed-telemetry {
  position: absolute;
  bottom: 4px;
  left: 6px;
  right: 6px;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: var(--color-primary);
  background-color: rgba(3, 18, 31, 0.75);
  padding: 2px 4px;
  border-radius: 4px;
}

.feed-center-icon {
  color: rgba(0, 217, 232, 0.6);
  z-index: 2;
}

.feed-center-icon svg {
  width: 24px;
  height: 24px;
}

/* Event Item Preview */
.app-event-preview {
  background: rgba(7, 36, 56, 0.85);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-small);
  padding: 8px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: auto;
}

.event-icon-box {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-small);
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.event-icon-box svg {
  width: 12px;
  height: 12px;
}

.event-details {
  flex: 1;
  min-width: 0;
}

.event-title {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.event-time {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: var(--color-text-muted);
}

/* App Bottom Navigation */
.app-bottom-nav {
  margin-top: 10px;
  background-color: rgba(7, 36, 56, 0.95);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  padding: 6px 12px;
  display: flex;
  justify-content: space-around;
  align-items: center;
}

.app-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  color: var(--color-text-muted);
  font-size: 0.55rem;
}

.app-nav-item.is-active {
  color: var(--color-primary);
}

.app-nav-item svg {
  width: 14px;
  height: 14px;
}

/* --------------------------------------------------------------------------
   8. Seção: Apresentação do Projeto
   -------------------------------------------------------------------------- */
.presentation-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .presentation-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.card-project {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  height: 100%;
}

.card-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-medium);
  background-color: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.card-icon-wrapper svg {
  width: 24px;
  height: 24px;
}

.card-title {
  font-size: var(--type-heading3);
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}

.card-text {
  font-size: var(--type-body);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Callout Acadêmico dentro da seção */
.academic-callout {
  margin-top: var(--space-8);
  padding: var(--space-6);
  border-radius: var(--radius-large);
  background: linear-gradient(135deg, rgba(8, 46, 69, 0.5) 0%, rgba(7, 36, 56, 0.4) 100%);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

@media (min-width: 768px) {
  .academic-callout {
    flex-direction: row;
    align-items: center;
    gap: var(--space-6);
  }
}

.callout-badge-col {
  flex-shrink: 0;
}

.callout-content {
  font-size: var(--type-small);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.callout-content strong {
  color: var(--color-text-primary);
}

/* --------------------------------------------------------------------------
   9. Seção: Como Funciona (Fluxo em 4 Etapas)
   -------------------------------------------------------------------------- */
.workflow-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  position: relative;
}

@media (min-width: 768px) {
  .workflow-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .workflow-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.step-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  padding: var(--space-6);
  transition: all var(--motion-base);
}

.step-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
}

.step-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
}

.step-number {
  font-family: var(--font-mono);
  font-size: var(--type-small);
  font-weight: 700;
  color: var(--color-primary);
  background-color: var(--color-primary-soft);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-small);
  border: 1px solid rgba(0, 217, 232, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.step-icon svg {
  width: 24px;
  height: 24px;
}

.step-title {
  font-size: var(--type-heading3);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.step-summary {
  font-size: var(--type-small);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
  line-height: 1.4;
}

.step-description {
  font-size: var(--type-small);
  color: var(--color-text-secondary);
  line-height: 1.55;
}

/* Transparência algorítmica */
.ai-humility-notice {
  margin-top: var(--space-8);
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-medium);
  background-color: rgba(7, 36, 56, 0.6);
  border: 1px solid var(--color-border-subtle);
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.ai-notice-icon {
  color: var(--color-warning);
  flex-shrink: 0;
  margin-top: 2px;
}

.ai-notice-icon svg {
  width: 20px;
  height: 20px;
}

.ai-notice-text {
  font-size: var(--type-small);
  color: var(--color-text-secondary);
  line-height: 1.55;
}

.ai-notice-text strong {
  color: var(--color-text-primary);
}

/* --------------------------------------------------------------------------
   10. Seção: Aplicativo PoolSafe
   -------------------------------------------------------------------------- */
.app-capabilities-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin-bottom: var(--space-12);
}

@media (min-width: 640px) {
  .app-capabilities-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .app-capabilities-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.capability-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.capability-icon {
  color: var(--color-primary);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-small);
  background-color: var(--color-primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}

.capability-icon svg {
  width: 20px;
  height: 20px;
}

.capability-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.capability-desc {
  font-size: var(--type-small);
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* Galeria de Screenshots Mockups */
.screenshots-gallery-title {
  text-align: center;
  font-size: var(--type-heading2);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-8);
}

.screenshots-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  justify-items: center;
}

@media (min-width: 768px) {
  .screenshots-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.mockup-item {
  width: 100%;
  max-width: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

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

.mockup-label {
  font-size: var(--type-small);
  font-weight: 700;
  color: var(--color-text-primary);
}

.mockup-sub {
  font-size: var(--type-caption);
  color: var(--color-text-muted);
}

/* Detalhe interno de tela: Câmeras */
.screen-cameras-content {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.camera-list-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  padding: 10px;
}

.camera-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.camera-title-text {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.camera-feed-snapshot {
  height: 75px;
  background-color: #031E2D;
  border-radius: var(--radius-small);
  border: 1px solid var(--color-border-subtle);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.camera-grid-lines {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(0, 217, 232, 0.15) 1px, transparent 1px);
  background-size: 12px 12px;
}

.camera-meta-footer {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--color-text-muted);
}

/* Detalhe interno de tela: Histórico / Alertas */
.screen-alerts-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.alert-card-ui {
  background-color: var(--color-surface);
  border-radius: var(--radius-medium);
  padding: 10px;
  border-left: 3px solid transparent;
}

.alert-card-ui--warning {
  border-left-color: var(--color-warning);
  border-top: 1px solid rgba(246, 201, 92, 0.2);
  border-right: 1px solid rgba(246, 201, 92, 0.2);
  border-bottom: 1px solid rgba(246, 201, 92, 0.2);
}

.alert-card-ui--danger {
  border-left-color: var(--color-danger);
  border-top: 1px solid rgba(255, 77, 115, 0.25);
  border-right: 1px solid rgba(255, 77, 115, 0.25);
  border-bottom: 1px solid rgba(255, 77, 115, 0.25);
  background: linear-gradient(135deg, rgba(59, 30, 53, 0.4) 0%, rgba(7, 36, 56, 0.7) 100%);
}

.alert-ui-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.alert-ui-title {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.alert-ui-desc {
  font-size: 0.62rem;
  color: var(--color-text-secondary);
  line-height: 1.35;
  margin-bottom: 6px;
}

.alert-ui-footer {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   11. Seção: Estado do Desenvolvimento
   -------------------------------------------------------------------------- */
.dev-status-card {
  background: var(--color-surface-glass);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xlarge);
  padding: var(--space-8);
  box-shadow: var(--shadow-low);
}

.dev-status-intro {
  margin-bottom: var(--space-8);
  font-size: var(--type-body);
  color: var(--color-text-secondary);
  line-height: 1.65;
}

.dev-status-intro p+p {
  margin-top: var(--space-4);
}

.dev-tracks-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .dev-tracks-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.track-item {
  background-color: var(--color-surface-raised);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-medium);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.track-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.track-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.track-desc {
  font-size: var(--type-small);
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   12. Seção: Sobre o TCC
   -------------------------------------------------------------------------- */
.tcc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 992px) {
  .tcc-grid {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: start;
  }
}

.tcc-explanation {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.tcc-text {
  font-size: var(--type-body);
  color: var(--color-text-secondary);
  line-height: 1.65;
}

.disciplines-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

@media (min-width: 600px) {
  .disciplines-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.discipline-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-small);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.discipline-icon {
  color: var(--color-primary);
  margin-top: 2px;
  flex-shrink: 0;
}

.discipline-icon svg {
  width: 16px;
  height: 16px;
}

.discipline-info h4 {
  font-size: var(--type-small);
  font-weight: 600;
  color: var(--color-text-primary);
}

.discipline-info p {
  font-size: var(--type-caption);
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* Card Acadêmico / Identificação */
.tcc-academic-card {
  background: var(--color-surface-glass);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  padding: var(--space-6);
  box-shadow: var(--shadow-low);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.academic-card-header {
  border-bottom: 1px solid var(--color-border-subtle);
  padding-bottom: var(--space-4);
}

.academic-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.academic-card-subtitle {
  font-size: var(--type-small);
  color: var(--color-text-muted);
}

.academic-fields-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.academic-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.field-label {
  font-family: var(--font-mono);
  font-size: var(--type-caption);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.field-value {
  font-size: var(--type-small);
  color: var(--color-text-primary);
  background-color: var(--color-surface-raised);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-small);
  border: 1px dashed var(--color-border);
}

.field-value.is-editable {
  font-style: italic;
  color: var(--color-text-secondary);
}

/* --------------------------------------------------------------------------
   13. Seção: Aviso Responsável (Disclaimer)
   -------------------------------------------------------------------------- */
.disclaimer-section {
  padding-block: var(--space-10);
}

.disclaimer-banner {
  background: linear-gradient(135deg, rgba(8, 46, 69, 0.8) 0%, rgba(7, 36, 56, 0.9) 100%);
  border: 1px solid var(--color-primary);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-large);
  padding: var(--space-6);
  box-shadow: var(--shadow-medium), 0 0 24px rgba(0, 217, 232, 0.08);
  display: flex;
  align-items: flex-start;
  gap: var(--space-5);
}

@media (min-width: 768px) {
  .disclaimer-banner {
    padding: var(--space-8);
  }
}

.disclaimer-icon {
  color: var(--color-primary);
  flex-shrink: 0;
}

.disclaimer-icon svg {
  width: 32px;
  height: 32px;
}

.disclaimer-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.disclaimer-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.disclaimer-quote {
  font-size: var(--type-body);
  font-weight: 600;
  color: #E6FAFF;
  line-height: 1.5;
}

.disclaimer-sub {
  font-size: var(--type-small);
  color: var(--color-text-secondary);
  line-height: 1.55;
  margin-top: var(--space-1);
}

/* --------------------------------------------------------------------------
   14. Rodapé (Footer)
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-background-deep);
  border-top: 1px solid var(--color-border-subtle);
  padding-top: var(--space-16);
  padding-bottom: var(--space-10);
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: var(--space-8);
  }
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-description {
  font-size: var(--type-small);
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 360px;
}

.footer-col-title {
  font-size: var(--type-small);
  font-weight: 700;
  color: var(--color-text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

.footer-links-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-link {
  font-size: var(--type-small);
  color: var(--color-text-secondary);
  transition: color var(--motion-fast);
}

.footer-link:hover {
  color: var(--color-primary);
}

.github-placeholder-box {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-small);
  background-color: var(--color-surface);
  border: 1px dashed var(--color-border);
  color: var(--color-text-secondary);
  font-size: var(--type-small);
}

.github-placeholder-box svg {
  width: 18px;
  height: 18px;
  color: var(--color-text-primary);
}

.footer-bottom {
  border-top: 1px solid var(--color-border-subtle);
  padding-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-copy {
  font-size: var(--type-caption);
  color: var(--color-text-muted);
}

.footer-legal-note {
  font-size: var(--type-caption);
  color: var(--color-text-disabled);
}

/* --------------------------------------------------------------------------
   15. Acessibilidade: prefers-reduced-motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .bubble {
    animation: none;
    transform: none;
  }

  .card-glass:hover,
  .step-card:hover,
  .btn:hover {
    transform: none;
  }
}