/* ============================================
   VAQUEI - "O Chão da Pista"
   Design System CSS
   ============================================ */

/* --------------------------------------------
   1. CSS Variables
   -------------------------------------------- */
:root {
  /* Colors */
  --color-bg: #FFF8E7;
  --color-bg-warm: #F5E6D3;
  --color-terracota: #D35400;
  --color-terracota-dark: #B84500;
  --color-terracota-light: #E87E3A;
  --color-marrom: #3E2723;
  --color-marrom-light: #5D4037;
  --color-marrom-muted: #8D6E63;
  --color-text: #3E2723;
  --color-text-light: #FFF8E7;
  --color-text-muted: #8D6E63;
  --color-border: #D7CCC8;
  --color-overlay: rgba(62, 39, 35, 0.55);
  --color-overlay-light: rgba(62, 39, 35, 0.25);

  /* Fonts */
  --font-title: 'Playfair Display', Georgia, serif;
  --font-body: 'Lora', Georgia, serif;
  --font-ui: 'Josefin Sans', 'Helvetica Neue', sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  /* Layout */
  --max-width: 1200px;
  --header-height: 72px;
  --section-padding: var(--space-2xl) var(--space-md);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

/* --------------------------------------------
   2. Reset + Base Styles
   -------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
}

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

a {
  color: var(--color-terracota);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-terracota-dark);
}

ul, ol {
  list-style: none;
}

button {
  font-family: var(--font-ui);
  cursor: pointer;
  border: none;
  background: none;
}

/* --------------------------------------------
   3. Typography
   -------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-title);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-marrom);
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: clamp(1.125rem, 2vw, 1.25rem);
  font-family: var(--font-ui);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

p {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

p:last-child {
  margin-bottom: 0;
}

.text-lead {
  font-size: 1.25rem;
  line-height: 1.7;
  color: var(--color-marrom-muted);
}

.text-small {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}

/* --------------------------------------------
   4. Header
   -------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: rgba(255, 248, 231, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: box-shadow var(--transition-base);
}

.header--scrolled,
.header.scrolled {
  box-shadow: 0 2px 20px rgba(62, 39, 35, 0.08);
}

.header__container,
.header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  font-family: var(--font-title);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-marrom);
  letter-spacing: -0.02em;
}

.header__logo span {
  color: var(--color-terracota);
}

.header__nav {
  display: none;
}

.header__nav-list {
  display: flex;
  gap: var(--space-lg);
}

.header__nav-link,
.header__nav > a {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-marrom);
  transition: color var(--transition-fast);
  text-decoration: none;
}

.header__nav-link:hover,
.header__nav > a:hover {
  color: var(--color-terracota);
}

/* Mobile menu open state */
.header__nav.open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  background-color: rgba(255, 248, 231, 0.98);
  backdrop-filter: blur(12px);
  padding: var(--space-md);
  gap: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 8px 24px rgba(62, 39, 35, 0.1);
}

/* Burger active state */
.header__burger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.header__burger.active span:nth-child(2) {
  opacity: 0;
}
.header__burger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.header__cta {
  display: none;
}

.header__menu-toggle,
.header__burger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-xs);
}

.header__menu-toggle span,
.header__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-marrom);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* --------------------------------------------
   5. Hero
   -------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    var(--color-overlay) 0%,
    var(--color-overlay-light) 50%,
    var(--color-overlay) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  max-width: 800px;
}

.hero__eyebrow {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-terracota-light);
  margin-bottom: var(--space-md);
}

.hero__title {
  font-family: var(--font-title);
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 700;
  color: var(--color-text-light);
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  text-shadow: 0 2px 30px rgba(62, 39, 35, 0.3);
}

.hero__subtitle,
.hero__sub {
  font-family: var(--font-body);
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  color: rgba(255, 248, 231, 0.9);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero__cta-group,
.hero__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
}

/* --------------------------------------------
   6. Feature Section (Alternating Layout)
   -------------------------------------------- */
.feature {
  padding: var(--section-padding);
}

.feature__container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.feature__row {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.feature__row--reversed {
  flex-direction: column;
}

.feature__media,
.feature__img {
  flex: 1;
  min-height: 300px;
  overflow: hidden;
}

.feature__media img,
.feature__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.feature__media:hover img,
.feature__img:hover {
  transform: scale(1.03);
}

.feature__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-md) 0;
}

.feature__eyebrow,
.feature__tag {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-terracota);
  margin-bottom: var(--space-sm);
}

.feature__title {
  margin-bottom: var(--space-md);
}

.feature__text {
  margin-bottom: var(--space-lg);
}

.feature__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.feature__list-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
}

.feature__list-item::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  min-width: 6px;
  margin-top: 0.6em;
  background-color: var(--color-terracota);
  transform: rotate(45deg);
}

/* --------------------------------------------
   7. Buttons
   -------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.875rem 2rem;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: 2px;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid transparent;
  transition: border-color var(--transition-base);
}

.btn--primary {
  background-color: var(--color-terracota);
  color: var(--color-text-light);
  border: 2px solid var(--color-terracota);
}

.btn--primary:hover {
  background-color: var(--color-terracota-dark);
  border-color: var(--color-terracota-dark);
  color: var(--color-text-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(211, 84, 0, 0.3);
}

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

.btn--secondary,
.btn--outline-light {
  background-color: transparent;
  color: var(--color-text-light);
  border: 2px solid rgba(255, 248, 231, 0.6);
}

.btn--secondary:hover,
.btn--outline-light:hover {
  background-color: rgba(255, 248, 231, 0.1);
  border-color: var(--color-text-light);
  color: var(--color-text-light);
}

.btn--dark {
  background-color: var(--color-marrom);
  color: var(--color-text-light);
  border: 2px solid var(--color-marrom);
}

.btn--dark:hover {
  background-color: var(--color-marrom-light);
  border-color: var(--color-marrom-light);
  color: var(--color-text-light);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-marrom);
  border: 2px solid var(--color-marrom);
}

.btn--outline:hover {
  background-color: var(--color-marrom);
  color: var(--color-text-light);
}

/* --------------------------------------------
   8. Organic Divider (SVG Curve)
   -------------------------------------------- */
.divider {
  position: relative;
  height: 80px;
  overflow: hidden;
  background-color: var(--color-bg);
}

.divider--flip {
  transform: rotate(180deg);
}

.divider__svg {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.divider__path {
  fill: var(--color-bg-warm);
}

.divider--dark .divider__path {
  fill: var(--color-marrom);
}

.divider--terracota .divider__path {
  fill: var(--color-terracota);
}

/* --------------------------------------------
   9. Footer
   -------------------------------------------- */
.footer {
  background-color: var(--color-marrom);
  color: var(--color-text-light);
  padding: var(--space-2xl) var(--space-md) var(--space-xl);
}

.footer__container,
.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.footer__brand {
  max-width: 300px;
}

.footer__logo {
  font-family: var(--font-title);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
}

.footer__logo span {
  color: var(--color-terracota-light);
}

.footer__tagline {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(255, 248, 231, 0.7);
}

.footer__nav-title,
.footer__links h4 {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-terracota-light);
  margin-bottom: var(--space-md);
}

.footer__nav-list,
.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__nav-link,
.footer__links a {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: rgba(255, 248, 231, 0.7);
  transition: color var(--transition-fast);
}

.footer__nav-link:hover,
.footer__links a:hover {
  color: var(--color-text-light);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 248, 231, 0.1);
  padding-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  align-items: center;
  text-align: center;
}

.footer__copyright {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  color: rgba(255, 248, 231, 0.5);
  letter-spacing: 0.02em;
}

.footer__social {
  display: flex;
  gap: var(--space-md);
}

.footer__social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 248, 231, 0.2);
  border-radius: 2px;
  color: rgba(255, 248, 231, 0.6);
  transition: all var(--transition-base);
}

.footer__social-link:hover {
  border-color: var(--color-terracota);
  color: var(--color-terracota-light);
  background-color: rgba(211, 84, 0, 0.1);
}

/* --------------------------------------------
   10. Responsive (Mobile-First)
   -------------------------------------------- */

/* Tablet: 768px+ */
@media (min-width: 768px) {
  :root {
    --section-padding: var(--space-2xl) var(--space-xl);
  }

  .header__nav {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
  }

  .header__cta {
    display: inline-flex;
  }

  .header__menu-toggle,
  .header__burger {
    display: none;
  }

  .hero__cta-group,
  .hero__actions {
    flex-direction: row;
    justify-content: center;
  }

  .feature__row {
    flex-direction: row;
    align-items: center;
    gap: var(--space-2xl);
  }

  .feature__row--reversed {
    flex-direction: row-reverse;
  }

  .feature__media,
  .feature__img,
  .feature__content {
    flex: 0 0 calc(50% - var(--space-xl));
  }

  .feature__media,
  .feature__img {
    min-height: 400px;
  }

  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }

  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* Desktop: 1200px+ */
@media (min-width: 1200px) {
  :root {
    --section-padding: var(--space-3xl) var(--space-xl);
  }

  .header__container,
  .feature__container,
  .footer__container {
    padding-left: var(--space-xl);
    padding-right: var(--space-xl);
  }

  .feature__media,
  .feature__img {
    min-height: 500px;
  }

  .hero__content {
    padding: var(--space-2xl);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}