/* ==================================================================
   ARGOS — Sistema de Retirada de Faltas — CIDIT / EEAR
   ================================================================== */

:root {
  --azul-eear: #0a2e5c;
  --azul-eear-escuro: #061c3a;
  --azul-claro: #e8f0fb;
  --accent: #2f6fed;
  --accent-escuro: #1e4fb8;
  --texto: #16202e;
  --texto-muted: #55637a;
  --branco: #ffffff;
  --borda: #dbe3ef;
  --fundo-alt: #f4f7fc;
  --sombra: 0 8px 24px rgba(10, 46, 92, 0.08);

  --fonte-display: 'Barlow Semi Condensed', system-ui, sans-serif;
  --fonte-corpo: 'IBM Plex Sans', system-ui, sans-serif;

  --largura-max: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  font-family: var(--fonte-corpo);
  color: var(--texto);
  background: var(--branco);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  font-family: var(--fonte-display);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 12px;
  color: var(--azul-eear);
}

p {
  margin: 0 0 16px;
}

a {
  color: inherit;
}

.section-inner {
  max-width: var(--largura-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ==================== NAVBAR ==================== */

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--borda);
}

.navbar-inner {
  max-width: var(--largura-max);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--azul-eear);
}

.brand-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-text strong {
  font-family: var(--fonte-display);
  font-size: 20px;
  letter-spacing: 1px;
  white-space: nowrap;
}

.brand-text small {
  font-size: 11px;
  color: var(--texto-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: 28px;
  flex-shrink: 0;
}

.nav-link {
  text-decoration: none;
  color: var(--texto-muted);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.nav-link:hover,
.nav-link.active {
  color: var(--azul-eear);
  border-color: var(--accent);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--azul-eear);
  transition: transform 0.25s, opacity 0.25s;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==================== BOTÕES ==================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 22px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.15s;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--accent);
  color: var(--branco);
}

.btn-primary:hover {
  background: var(--accent-escuro);
}

.btn-outline {
  background: transparent;
  border-color: var(--azul-eear);
  color: var(--azul-eear);
}

.btn-outline:hover {
  background: var(--azul-eear);
  color: var(--branco);
}

.btn-ghost {
  background: transparent;
  color: var(--texto-muted);
  border-color: var(--borda);
  font-size: 13px;
  padding: 9px 16px;
}

.btn-ghost:hover {
  color: var(--azul-eear);
  border-color: var(--azul-eear);
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* ==================== SECTIONS (genérico) ==================== */

.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--fundo-alt);
}

.section-head {
  max-width: 640px;
  margin: 0 0 48px;
}

.tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--azul-claro);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: clamp(28px, 4vw, 38px);
}

.section-lead {
  color: var(--texto-muted);
  font-size: 16px;
  max-width: 560px;
}

/* ==================== HERO ==================== */

.hero {
  position: relative;
  padding-top: 72px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 900px 500px at 85% -10%, var(--azul-claro), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #ffffff 100%);
  z-index: -1;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.display {
  font-size: clamp(48px, 8vw, 84px);
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.hero-subtitle {
  font-family: var(--fonte-display);
  font-size: 19px;
  font-weight: 600;
  color: var(--texto);
  margin-bottom: 20px;
}

.hero-text {
  color: var(--texto-muted);
  font-size: 16px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.hero-media {
  display: flex;
  justify-content: center;
}

/* ==================== IMAGE SLOTS / PHONE FRAME ==================== */

.img-slot {
  position: relative;
  background: var(--fundo-alt);
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--borda);
}

.phone-frame {
  width: 280px;
  aspect-ratio: 804 / 1748; /* proporção real dos prints (hero-app.png, tela-login.png) */
  box-shadow: var(--sombra);
  margin: 0 auto;
}

.img-slot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.img-slot.img-missing {
  display: flex;
  align-items: center;
  justify-content: center;
}

.img-slot.img-missing::after {
  content: attr(data-caption);
  color: var(--texto-muted);
  font-size: 12px;
  text-align: center;
  padding: 20px;
}

.img-slot.img-missing img {
  display: none;
}

.media-caption {
  text-align: center;
  font-size: 13px;
  color: var(--texto-muted);
  margin-top: 14px;
}

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

.split {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 56px;
  align-items: center;
}

.split-reverse {
  grid-template-columns: 0.8fr 1.2fr;
}

.split-reverse .split-media {
  order: -1;
}

.split-text p {
  color: var(--texto-muted);
  font-size: 16px;
}

.split-text strong {
  color: var(--texto);
}

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

.cards {
  display: grid;
  gap: 20px;
  margin-top: 32px;
}

.cards-3 {
  grid-template-columns: repeat(3, 1fr);
}

.cards-4 {
  grid-template-columns: repeat(4, 1fr);
  margin-top: 48px;
}

.card {
  background: var(--branco);
  border: 1px solid var(--borda);
  border-radius: 14px;
  padding: 22px;
  box-shadow: var(--sombra);
}

.card h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.card p {
  font-size: 14px;
  color: var(--texto-muted);
  margin-bottom: 0;
}

.card-icon {
  font-size: 22px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--azul-claro);
  border-radius: 10px;
  margin-bottom: 14px;
}

.card-outline {
  background: transparent;
  box-shadow: none;
  border: 1px solid var(--borda);
}

/* ==================== STEPS (Funcionamento) ==================== */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 56px;
}

.step {
  background: var(--branco);
  border: 1px solid var(--borda);
  border-radius: 14px;
  padding: 24px;
}

.step-number {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--azul-eear);
  color: var(--branco);
  font-family: var(--fonte-display);
  font-weight: 700;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.step h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.step p {
  font-size: 14px;
  color: var(--texto-muted);
  margin-bottom: 0;
}

/* ==================== CALLOUTS ==================== */

.callout-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.callout {
  background: var(--branco);
  border: 1px solid var(--borda);
  border-radius: 14px;
  padding: 26px;
}

.callout-dark {
  background: var(--azul-eear);
  border-color: var(--azul-eear);
  color: var(--branco);
}

.callout-dark h4 {
  color: var(--branco);
}

.callout h4 {
  font-size: 15px;
  margin-bottom: 12px;
}

.callout p {
  font-size: 14px;
  margin-bottom: 0;
  color: var(--texto-muted);
}

.callout-dark p {
  color: rgba(255, 255, 255, 0.75);
}

.plain-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 14px;
}

.plain-list li {
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.85);
}

.plain-list li:last-child {
  border-bottom: none;
}

.plain-list strong {
  color: var(--branco);
}

/* ==================== STAT CARD (Propósito) ==================== */

.stat-card {
  background: var(--azul-eear);
  color: var(--branco);
  border-radius: 20px;
  padding: 48px 32px;
  text-align: center;
  box-shadow: var(--sombra);
}

.stat-number {
  display: block;
  font-family: var(--fonte-display);
  font-size: 96px;
  font-weight: 700;
  line-height: 1;
}

.stat-label {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 12px;
}

/* ==================== ROADMAP ==================== */

.roadmap {
  margin-top: 56px;
  border-top: 1px solid var(--borda);
  padding-top: 32px;
}

.roadmap h4 {
  font-size: 15px;
  color: var(--texto-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
}

.roadmap-items {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.roadmap-item {
  font-size: 14px;
  color: var(--texto);
  padding: 16px;
  border: 1px dashed var(--borda);
  border-radius: 10px;
}

.roadmap-item span {
  display: block;
  font-family: var(--fonte-display);
  font-weight: 700;
  color: var(--accent);
  font-size: 13px;
  margin-bottom: 6px;
}

/* ==================== FOOTER ==================== */

.footer {
  background: var(--azul-eear-escuro);
  color: rgba(255, 255, 255, 0.85);
  padding-top: 64px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-col h4 {
  color: var(--branco);
  font-size: 15px;
  margin-bottom: 14px;
}

.footer-col p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-logo-img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.footer-logo span {
  font-family: var(--fonte-display);
  font-size: 18px;
  color: var(--branco);
  letter-spacing: 1px;
}

.footer-credit {
  color: rgba(255, 255, 255, 0.55);
}

.footer-github {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  font-size: 13px;
  color: #9cc0ff;
  text-decoration: none;
}

.footer-github:hover {
  text-decoration: underline;
}

.footer-cidit {
  display: flex;
  gap: 14px;
}

.footer-cidit-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  flex-shrink: 0;
}

.footer-muted {
  color: rgba(255, 255, 255, 0.45) !important;
  font-size: 12px !important;
}

.team-list {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
}

.team-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.team-list li:last-child {
  border-bottom: none;
}

.team-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.1);
}

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

.team-name {
  font-size: 13px;
  color: var(--branco);
}

.team-role {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.back-to-top {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--branco);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.2s;
}

.back-to-top:hover {
  background: rgba(255, 255, 255, 0.16);
}

/* ==================================================================
   RESPONSIVO
   ================================================================== */

@media (max-width: 900px) {
  .navbar-inner {
    gap: 12px;
  }

  .brand-text small {
    display: none;
  }

  .nav-links {
    gap: 16px;
  }

  .nav-link {
    font-size: 13px;
  }
}

@media (max-width: 960px) {
  .hero-grid,
  .split,
  .split-reverse {
    grid-template-columns: 1fr;
  }

  .split-reverse .split-media {
    order: 0;
  }

  .hero-media {
    margin-top: 32px;
  }

  .cards-3,
  .cards-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .callout-grid {
    grid-template-columns: 1fr;
  }

  .roadmap-items {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--branco);
    border-bottom: 1px solid var(--borda);
    flex-direction: column;
    gap: 0;
    padding: 8px 24px 16px;
    display: none;
  }

  .nav-links.open {
    display: flex;
    box-shadow: var(--sombra);
  }

  .nav-link {
    padding: 12px 0;
    border-bottom: 1px solid var(--borda);
  }

  .nav-toggle {
    display: flex;
  }

  .navbar-actions .btn-ghost:not(.nav-toggle) {
    display: none;
  }

  .section {
    padding: 64px 0;
  }

  .cards-3,
  .cards-4 {
    grid-template-columns: 1fr;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .roadmap-items {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .stat-number {
    font-size: 72px;
  }
}