/* ========================================
   Flash Express — Global Stylesheet
   ======================================== */

/* --- Design Tokens --- */
:root {
  --color-primary: #1e293b;
  --color-primary-dark: #0f172a;
  --color-primary-light: #334155;
  --color-accent: #ef4444;
  --color-accent-hover: #dc2626;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-tertiary: #94a3b8;
  --color-bg: #ffffff;
  --color-bg-subtle: #f8fafc;
  --color-border: #e2e8f0;
  --color-success: #16a34a;
  --color-success-light: #dcfce7;
  --color-error: #ef4444;
  --color-error-light: #fef2f2;
  --color-warning: #f59e0b;
  --container-max: 1200px;
  --container-padding: 24px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.12);
  --transition: .2s ease;
}

/* --- Reset & Base --- */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--color-bg);
  color: var(--color-text-secondary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.7;
  font-size: .9375rem;
}
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; border: none; background: none; font-size: inherit; }
img, svg { display: block; max-width: 100%; }
::selection { background: var(--color-accent); color: #fff; }

/* --- Focus --- */
*:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* --- Utilities --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ========================================
   Navbar
   ======================================== */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--color-border);
}
.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.site-nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--color-primary);
  transition: opacity var(--transition);
}
.site-nav__logo:hover { opacity: .8; }
.site-nav__logo-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.site-nav__logo-icon svg { width: 20px; height: 20px; }
.site-nav__links {
  display: flex;
  gap: 32px;
  align-items: center;
}
.site-nav__links a {
  font-size: .85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition);
}
.site-nav__links a:hover { color: var(--color-accent); }
.site-nav__auth {
  display: flex;
  gap: 10px;
  align-items: center;
}
.btn-outline {
  font-size: .84rem;
  font-weight: 600;
  color: var(--color-primary);
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  transition: all var(--transition);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.btn-solid {
  font-size: .84rem;
  font-weight: 600;
  color: #fff;
  background: var(--color-accent);
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn-solid:hover { background: var(--color-accent-hover); }
.btn-solid:disabled { opacity: .5; cursor: wait; }

.btn-solid--lg {
  padding: 14px 32px;
  font-size: .95rem;
  border-radius: var(--radius-md);
}

/* Hamburger */
.site-nav__hamburger {
  display: none;
  padding: 6px;
  color: var(--color-text-secondary);
  cursor: pointer;
}
.site-nav__hamburger svg { width: 26px; height: 26px; }

/* Mobile panel */
.site-nav__mobile {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 16px var(--container-padding);
  background: #fff;
  border-top: 1px solid var(--color-border);
}
.site-nav__mobile.is-open { display: flex; }
.site-nav__mobile a {
  padding: 14px 0;
  font-size: .9rem;
  color: var(--color-text-secondary);
  font-weight: 500;
  border-bottom: 1px solid var(--color-bg-subtle);
}
.site-nav__mobile a:last-child { border: none; }

/* ========================================
   Page Header (inner pages)
   ======================================== */
.page-header {
  background: var(--color-bg-subtle);
  border-bottom: 1px solid var(--color-border);
  padding: 48px 0;
}
.page-header__breadcrumb {
  font-size: .8rem;
  color: var(--color-text-tertiary);
  margin-bottom: 12px;
}
.page-header__breadcrumb a {
  color: var(--color-text-tertiary);
  transition: color var(--transition);
}
.page-header__breadcrumb a:hover { color: var(--color-accent); }
.page-header__title {
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -.02em;
  margin-bottom: 8px;
}
.page-header__desc {
  font-size: .95rem;
  color: var(--color-text-secondary);
  max-width: 600px;
}

/* ========================================
   Content Card (inner pages)
   ======================================== */
.content-section {
  padding: 64px 0;
}
.content-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  margin-bottom: 24px;
}
.content-card h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}
.content-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: 24px;
  margin-bottom: 10px;
}
.content-card p {
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: 12px;
}
.content-card ul {
  margin: 12px 0;
  padding-left: 20px;
  list-style: disc;
}
.content-card li {
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: 6px;
}
.content-card a {
  color: var(--color-accent);
  font-weight: 500;
}
.content-card a:hover { text-decoration: underline; }
.content-card strong {
  color: var(--color-primary);
  font-weight: 600;
}

/* ========================================
   Forms
   ======================================== */
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}
.form-input {
  width: 100%;
  padding: 13px 16px;
  font-size: .9rem;
  color: var(--color-text);
  background: var(--color-bg-subtle);
  border-radius: var(--radius-md);
  border: 1.5px solid transparent;
  outline: none;
  transition: all var(--transition);
}
.form-input:focus {
  background: #fff;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(239,68,68,.1);
}
.form-input::placeholder { color: var(--color-text-tertiary); }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
select.form-input {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 24 24'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}
textarea.form-input {
  resize: vertical;
  min-height: 120px;
}

/* ========================================
   Modal
   ======================================== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 999;
  align-items: center;
  justify-content: center;
}
.modal-overlay.is-open { display: flex; }
.modal-box {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  max-width: 420px;
  width: 90%;
  text-align: center;
  box-shadow: var(--shadow-lg);
  animation: modalIn .25s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(.95); }
  to { opacity: 1; transform: scale(1); }
}
.modal-box h2 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}
.modal-box p {
  font-size: .88rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 28px;
}
.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

/* ========================================
   FAQ Accordion
   ======================================== */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--color-border);
}
.faq-item__btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  font-size: .95rem;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  text-align: left;
}
.faq-item__btn svg {
  width: 18px;
  height: 18px;
  color: var(--color-text-tertiary);
  transition: transform .3s;
  flex-shrink: 0;
}
.faq-item.is-open .faq-item__btn svg {
  transform: rotate(180deg);
}
.faq-item__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-item.is-open .faq-item__content {
  max-height: 300px;
}
.faq-item__content p {
  padding: 0 0 20px;
  font-size: .88rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
  background: var(--color-primary-dark);
  padding: 64px 0 0;
  border-top: 1px solid rgba(255,255,255,.06);
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.site-footer__brand p {
  font-size: .84rem;
  color: var(--color-text-tertiary);
  line-height: 1.7;
  margin-top: 14px;
}
.site-footer__brand .footer-cnpj {
  font-size: .75rem;
  color: var(--color-text-tertiary);
  opacity: .7;
  margin-top: 10px;
}
.site-footer__col h4 {
  font-size: .78rem;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 18px;
}
.site-footer__col a,
.site-footer__col span {
  display: block;
  font-size: .84rem;
  color: var(--color-text-tertiary);
  padding: 5px 0;
  transition: color var(--transition);
}
.site-footer__col a:hover { color: #fff; }

.site-footer__bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 24px 0;
  text-align: center;
}
.site-footer__bottom p {
  font-size: .72rem;
  color: var(--color-text-tertiary);
  opacity: .7;
  line-height: 1.8;
}

/* ========================================
   Cookie Banner
   ======================================== */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #fff;
  border-top: 1px solid var(--color-border);
  padding: 16px 0;
  z-index: 200;
  box-shadow: 0 -2px 10px rgba(0,0,0,.06);
}
.cookie-banner__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.cookie-banner__text {
  font-size: .82rem;
  color: var(--color-text-secondary);
  flex: 1;
}
.cookie-banner__text a {
  color: var(--color-accent);
  font-weight: 600;
}
.cookie-banner__accept {
  padding: 8px 24px;
  background: var(--color-accent);
  color: #fff;
  font-weight: 700;
  font-size: .82rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition);
}
.cookie-banner__accept:hover { background: var(--color-accent-hover); }

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 768px) {
  .site-nav__links,
  .site-nav__auth { display: none; }
  .site-nav__hamburger { display: block; }
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .form-row { grid-template-columns: 1fr; }
  .content-card { padding: 28px 22px; }
}

@media (max-width: 480px) {
  .site-footer__grid { grid-template-columns: 1fr; }
  .cookie-banner__inner {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }
}