/* ============================================
   DaSerra — Distribuidora de Alimentos
   Design System: Serra Gaúcha Premium
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;0,900;1,400;1,700&family=Inter:wght@300;400;500;600&display=swap');

/* ── Variables ── */
:root {
  --green-deep: #111111;
  --green-mid: #2a2a2a;
  --green-light: #444444;
  --gold: #e6b800;
  --gold-light: #f5cc00;
  --cream: #f5f5f5;
  --cream-dark: #e8e8e8;
  --ink: #111111;
  --ink-soft: #333333;
  --ink-muted: #777777;
  --white: #ffffff;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', system-ui, sans-serif;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.18);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-body);
  background: var(--cream);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

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

/* ── Topographic background pattern ── */
.topo-bg {
  background-color: var(--green-deep);
  background-image:
    repeating-linear-gradient(0deg,
      transparent,
      transparent 48px,
      rgba(255, 255, 255, 0.03) 48px,
      rgba(255, 255, 255, 0.03) 50px),
    repeating-linear-gradient(90deg,
      transparent,
      transparent 48px,
      rgba(255, 255, 255, 0.02) 48px,
      rgba(255, 255, 255, 0.02) 50px),
    radial-gradient(ellipse 120% 80% at 70% 40%, rgba(230, 184, 0, 0.07) 0%, transparent 60%),
    radial-gradient(ellipse 80% 60% at 20% 80%, rgba(255, 255, 255, 0.04) 0%, transparent 50%);
}

/* ── Header ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 clamp(24px, 5vw, 80px);
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  background: rgba(0, 0, 0, 0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 24px rgba(0, 0, 0, 0.2);
}

.site-header.light {
  background: rgba(248, 244, 238, 0.97);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}

.site-header.light .nav-logo {
  color: var(--green-deep);
}

.site-header.light .nav-link {
  color: var(--ink-soft);
}

.site-header.light .nav-link:hover {
  color: var(--green-deep);
}

.site-header.light .nav-cta {
  background: var(--green-deep);
  color: var(--white);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.nav-logo span {
  font-size: 0.55rem;
  font-family: var(--font-body);
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-top: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.85);
  transition: color var(--transition);
}

.nav-link:hover {
  color: var(--gold-light);
}

.nav-cta {
  padding: 10px 24px;
  background: var(--gold);
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition);
}

.nav-cta:hover {
  background: var(--gold-light);
  transform: translateY(-1px);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

.site-header.light .nav-hamburger span {
  background: var(--ink);
}

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to bottom, transparent, var(--cream));
  z-index: 2;
}

.hero-content {
  padding: clamp(100px, 12vw, 160px) clamp(24px, 6vw, 100px) clamp(80px, 10vw, 140px);
  position: relative;
  z-index: 3;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 28px;
}

.hero-eyebrow::before {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--gold);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4.5vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 28px;
  letter-spacing: -0.02em;
}

.hero-title em {
  font-style: italic;
  color: var(--gold-light);
}

.hero-subtitle {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 48px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 36px;
  background: var(--gold);
  color: var(--white);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn-primary:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200, 146, 42, 0.35);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 36px;
  border: 1.5px solid rgba(255, 255, 255, 0.3);
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
  font-size: 0.9375rem;
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.btn-outline:hover {
  border-color: rgba(255, 255, 255, 0.7);
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.hero-visual {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-badge {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 280px;
  height: 280px;
  border: 1px solid rgba(200, 146, 42, 0.3);
  border-radius: 50%;
  text-align: center;
}

.hero-badge::before {
  content: '';
  position: absolute;
  inset: 12px;
  border: 1px solid rgba(200, 146, 42, 0.15);
  border-radius: 50%;
}

.hero-badge-number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
}

.hero-badge-text {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 4px;
  padding: 0 24px;
  line-height: 1.5;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.4), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {

  0%,
  100% {
    opacity: 0.4;
    transform: scaleY(1);
  }

  50% {
    opacity: 1;
    transform: scaleY(0.6);
  }
}

/* ── Stats Strip ── */
.stats-strip {
  background: var(--white);
  border-top: 1px solid var(--cream-dark);
  border-bottom: 1px solid var(--cream-dark);
  padding: 48px clamp(24px, 5vw, 80px);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  max-width: 960px;
  margin: 0 auto;
}

.stat-item {
  text-align: center;
  padding: 24px 16px;
  border-right: 1px solid var(--cream-dark);
}

.stat-item:last-child {
  border-right: none;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--green-deep);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--ink-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ── Section commons ── */
.section {
  padding: clamp(80px, 10vw, 140px) clamp(24px, 5vw, 80px);
}

.section-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--gold);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 700;
  color: var(--green-deep);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.section-title em {
  font-style: italic;
  color: var(--gold);
}

/* ── About ── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 100px);
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.about-text {
  font-size: 1.0625rem;
  color: var(--ink-soft);
  line-height: 1.8;
  margin-top: 24px;
}

.about-text p+p {
  margin-top: 20px;
}

.about-text strong {
  color: var(--green-deep);
  font-weight: 600;
}

.about-tagline {
  margin-top: 40px;
  padding: 28px 32px;
  border-left: 3px solid var(--gold);
  background: var(--cream-dark);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.about-tagline p {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--green-deep);
  line-height: 1.5;
}

.about-visual {
  position: relative;
}

.about-card {
  background: var(--green-deep);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  position: relative;
  overflow: hidden;
}

.about-card::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  border: 1px solid rgba(200, 146, 42, 0.2);
  border-radius: 50%;
}

.about-card::after {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  border: 1px solid rgba(200, 146, 42, 0.1);
  border-radius: 50%;
}

.about-card-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--white);
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}

.benefits-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: relative;
  z-index: 1;
}

.benefit-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.benefit-icon {
  width: 36px;
  height: 36px;
  min-width: 36px;
  background: rgba(200, 146, 42, 0.15);
  border: 1px solid rgba(200, 146, 42, 0.3);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 1rem;
}

.benefit-content strong {
  display: block;
  color: var(--white);
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 2px;
}

.benefit-content span {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.8125rem;
  line-height: 1.5;
}

/* ── How it works ── */
.how-section {
  background: var(--green-deep);
  position: relative;
  overflow: hidden;
}

.how-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    repeating-linear-gradient(45deg,
      transparent,
      transparent 60px,
      rgba(255, 255, 255, 0.015) 60px,
      rgba(255, 255, 255, 0.015) 61px);
}

.how-section .section-title {
  color: var(--white);
}

.how-section .section-eyebrow {
  color: var(--gold-light);
}

.how-section .section-eyebrow::before {
  background: var(--gold-light);
}

.how-header {
  max-width: 600px;
  margin-bottom: 64px;
  position: relative;
  z-index: 1;
}

.how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  position: relative;
  z-index: 1;
}

.how-step {
  padding: 40px 32px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  transition: background var(--transition);
}

.how-step:hover {
  background: rgba(255, 255, 255, 0.06);
}

.step-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  color: rgba(200, 146, 42, 0.25);
  line-height: 1;
  margin-bottom: 20px;
}

.step-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 10px;
}

.step-desc {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.7;
}

/* ── Contact ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 100px);
  align-items: start;
  max-width: 1200px;
  margin: 0 auto;
}

.contact-info {
  padding-top: 8px;
}

.contact-intro {
  font-size: 1.0625rem;
  color: var(--ink-soft);
  line-height: 1.8;
  margin-top: 20px;
  margin-bottom: 40px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-detail {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.contact-detail-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  background: var(--green-deep);
  color: var(--white);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.contact-detail-body strong {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--ink);
  margin-bottom: 2px;
}

.contact-detail-body span {
  font-size: 0.875rem;
  color: var(--ink-muted);
}

.contact-detail-body a {
  font-size: 0.875rem;
  color: var(--green-mid);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.contact-detail-body a:hover {
  color: var(--green-deep);
}

.contact-form-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  box-shadow: var(--shadow-md);
}

.contact-form-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--green-deep);
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--cream);
  border: 1.5px solid var(--cream-dark);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--ink);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--green-mid);
  box-shadow: 0 0 0 3px rgba(45, 110, 71, 0.12);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  width: 100%;
  padding: 14px 24px;
  background: var(--green-deep);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.04em;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition);
}

.form-submit:hover {
  background: var(--green-mid);
  transform: translateY(-1px);
}

/* ── Footer ── */
.site-footer {
  background: var(--ink);
  padding: clamp(48px, 6vw, 80px) clamp(24px, 5vw, 80px) 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand-name {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--white);
  margin-bottom: 4px;
}

.footer-brand-sub {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
}

.footer-tagline {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.7;
  max-width: 280px;
}

.footer-col-title {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 16px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.3);
}

.footer-location {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.3);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ── Animations ── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up:nth-child(2) {
  transition-delay: 0.1s;
}

.fade-up:nth-child(3) {
  transition-delay: 0.2s;
}

.fade-up:nth-child(4) {
  transition-delay: 0.3s;
}

/* ── Mobile Menu ── */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--green-deep);
  z-index: 99;
  padding: 40px clamp(24px, 5vw, 80px);
  flex-direction: column;
  gap: 32px;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  font-size: 1.5rem;
  font-family: var(--font-display);
  color: var(--white);
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    display: none;
  }

  .hero-content {
    padding-bottom: 80px;
  }

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

  .stat-item:nth-child(2) {
    border-right: none;
  }

  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .how-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

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

  .footer-grid> :first-child {
    grid-column: 1 / -1;
  }

  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .hero-actions {
    flex-direction: column;
  }

  .btn-primary,
  .btn-outline {
    justify-content: center;
  }
}