/* CSS Variables */
:root {
  --color-dark: #2C2C2A;
  --color-darker: #1A1A18;
  --color-light: #FAFAF7;
  --color-accent: #8B7355;
  --color-muted: #6B6B65;
  --color-border: #E5E3DD;
  --color-subtle: #8B8B83;
  --color-error: #B8564B;
  --color-success: #4A7C59;
  --color-feature-1: #E8E3D9;
  --color-feature-2: #DDE8E0;
  --color-feature-3: #E0DDE8;
  --color-testimonial: #F3F1EC;
  --font-serif: "Source Serif 4", "Georgia", serif;
  --font-sans: "DM Sans", system-ui, sans-serif;
}

/* Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-serif);
  background: var(--color-light);
  color: var(--color-dark);
  min-height: 100vh;
}

.sans {
  font-family: var(--font-sans);
}

/* Section */
.section {
  max-width: 1060px;
  margin: 0 auto;
  padding: 80px 40px;
}

/* Divider */
.divider {
  padding: 0 40px;
}

.divider-line {
  border-top: 1px solid var(--color-border);
  margin: 0;
}

/* Tags */
.tag {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

/* Nav */
.nav {
  max-width: 1060px;
  margin: 0 auto;
  padding: 24px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.logo {
  font-family: var(--font-sans);
  font-size: 26px;
  font-weight: 700;
  color: var(--color-darker);
  letter-spacing: -0.5px;
}

.logo img {
  width: 200px;
}

.nav-links {
  font-family: var(--font-sans);
  display: flex;
  gap: 36px;
  font-size: 14px;
  color: var(--color-muted);
  align-items: center;
}

.nav-link {
  cursor: pointer;
}

.nav-link a {
  color: inherit;
  text-decoration: none;
}

.nav-cta {
  background: var(--color-dark);
  color: var(--color-light);
  padding: 9px 20px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
}

/* Hero */
.hero {
  padding-top: 80px;
  padding-bottom: 100px;
}

.hero-content {
  max-width: 740px;
}

.hero-description {
  font-size: 20px;
  line-height: 1.7;
  color: var(--color-muted);
  margin-bottom: 48px;
  max-width: 600px;
}

.hero-buttons {
  font-family: var(--font-sans);
  display: flex;
  gap: 16px;
}

.hero-buttons a{
  text-decoration: none;
}

/* Buttons */
.btn-primary,
.btn-secondary,
.btn-light,
.btn-outline {
  font-family: var(--font-sans);
  border: none;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary,
.btn-light {
  background: var(--color-dark);
  color: var(--color-light);
}

.btn-secondary,
.btn-outline {
  background: transparent;
  border: 1.5px solid #D5D3CD;
  color: var(--color-dark);
}

.btn-light {
  background: var(--color-light);
  color: var(--color-dark);
}

.btn-outline {
  color: var(--color-light);
  border: 1.5px solid rgba(255,255,255,0.2);
  background: transparent;
}

/* Typography */
h1 {
  font-size: 52px;
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -1.5px;
  color: var(--color-darker);
  margin-bottom: 28px;
}

h2 {
  font-size: 34px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
}

h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-darker);
}

.text-body {
  font-size: 17px;
  line-height: 1.75;
  color: var(--color-muted);
}

.mb-12 {
  margin-bottom: 12px;
}

.mb-24 {
  margin-bottom: 24px;
}

.mb-48 {
  margin-bottom: 48px;
}

.mb-56 {
  margin-bottom: 56px;
}

/* Grids */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* Problem Cards */
.problem-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding-top: 40px;
}

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 22px 24px;
}

.card-title {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 4px;
}

.card-subtitle {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--color-subtle);
  line-height: 1.5;
}

/* Feature Boxes */
.feature-box {
  border-radius: 14px;
  padding: 32px 28px;
}

.feature-box.color-1 {
  background: var(--color-feature-1);
}

.feature-box.color-2 {
  background: var(--color-feature-2);
}

.feature-box.color-3 {
  background: var(--color-feature-3);
}

.feature-num {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-subtle);
  letter-spacing: 1px;
}

.feature-box h3 {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 600;
  margin-top: 8px;
  margin-bottom: 20px;
  color: var(--color-darker);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feature-list > div {
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.5;
  color: #4A4A45;
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.bullet {
  color: var(--color-accent);
  font-size: 9px;
  margin-top: 5px;
  flex-shrink: 0;
}

/* Use Cases */
.use-cases {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 0;
}

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

.case-tab {
  font-family: var(--font-sans);
  background: transparent;
  border: 1px solid transparent;
  border-right: 1px solid transparent;
  padding: 16px 20px;
  text-align: left;
  cursor: pointer;
  border-radius: 10px 0 0 10px;
  position: relative;
  z-index: 1;
  margin-right: -1px;
}

.case-tab.active {
  background: #fff;
  border: 1px solid var(--color-border);
  border-right: 1px solid #fff;
  z-index: 2;
}

.tab-tag {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 1px;
  text-transform: uppercase;
  display: block;
  margin-bottom: 2px;
}

.tab-label {
  font-size: 13px;
  font-weight: 400;
  color: var(--color-subtle);
  line-height: 1.4;
}

.case-tab.active .tab-label {
  font-weight: 600;
  color: var(--color-darker);
}

.case-content {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 0 14px 14px 14px;
  padding: 40px 36px;
}

.case-title {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 24px;
  color: var(--color-darker);
  max-width: 540px;
}

.case-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.case-label {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.case-label.pain {
  color: var(--color-error);
}

.case-label.solve {
  color: var(--color-success);
}

.case-text {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-muted);
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  text-align: center;
}

.stat {
  padding: 20px 0;
}

.stat-value {
  font-size: 56px;
  font-weight: 300;
  letter-spacing: -3px;
  color: var(--color-darker);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.stat-suffix {
  font-size: 36px;
}

.stat-label {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--color-subtle);
  margin-top: 12px;
  max-width: 240px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}

/* Testimonials */
.testimonials {
  padding-top: 40px;
}

.testimonial {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 40px 36px;
  margin-bottom: 16px;
  position: relative;
  overflow: hidden;
}

.testimonial-icon {
  position: absolute;
  top: 8px;
  left: 16px;
  font-size: 120px;
  font-family: Georgia, serif;
  color: var(--color-border);
  opacity: 0.5;
  line-height: 1;
  user-select: none;
}

.testimonial-content {
  position: relative;
  z-index: 1;
}

.testimonial-text {
  font-size: 18px;
  line-height: 1.65;
  color: var(--color-dark);
  margin-bottom: 24px;
  padding-left: 20px;
}

.testimonial-author {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-left: 20px;
}

.testimonial-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.testimonial-name {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-darker);
  margin: 0;
}

.testimonial-role {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--color-subtle);
  margin: 0;
}

.testimonial-company {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-accent);
  margin: 0;
}

.testimonial-logo {
  height: 36px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
}

@media (max-width: 600px) {
  .testimonial-author {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .testimonial-icon {
    font-size: 80px;
  }
}

/* Steps */
.step-num {
  font-family: var(--font-sans);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-dark);
  color: var(--color-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}

.step h3 {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-darker);
}

.step-desc {
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-subtle);
}

/* CTA */
.cta {
  background: var(--color-dark);
  padding: 80px 40px;
  margin-top: 40px;
}

.cta-content {
  max-width: 1060px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 60px;
  align-items: center;
}

.cta-main h2 {
  font-size: 36px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -1px;
  color: var(--color-light);
  margin-bottom: 20px;
}

.cta-description {
  font-size: 17px;
  line-height: 1.7;
  color: #A8A8A2;
  margin-bottom: 36px;
}

.cta-buttons {
  font-family: var(--font-sans);
  display: flex;
  gap: 16px;
}

.cta-features {
  font-family: var(--font-sans);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.cta-feature {
  background: rgba(255,255,255,0.05);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 13px;
  color: #D5D3CD;
  display: flex;
  gap: 8px;
  align-items: center;
}

/* Footer */
.footer {
  max-width: 1060px;
  margin: 0 auto;
  padding: 32px 40px;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-sans);
  font-size: 12px;
  color: #A8A8A2;
}

/* Responsive */
@media (max-width: 900px) {
  .grid-2,
  .grid-3,
  .grid-4,
  .use-cases,
  .case-grid,
  .stats,
  .cta-content {
    grid-template-columns: 1fr;
  }

  .tabs {
    flex-direction: row;
    overflow-x: auto;
  }

  .case-tab {
    border-radius: 10px 10px 0 0;
    border-right: 1px solid transparent;
    margin-right: 0;
    white-space: nowrap;
  }

  .case-tab.active {
    border-right: 1px solid var(--color-border);
  }

  .case-content {
    border-radius: 0 0 14px 14px;
  }

  .cta-content {
    gap: 40px;
  }
}

/* Modal CSS Variables */
:root {
  --modal-overlay-bg: rgba(28, 28, 26, 0.85);
  --modal-max-width: 600px;
  --modal-z-index: 1000;
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--modal-overlay-bg);
  z-index: var(--modal-z-index);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Modal Container */
.modal-container {
  background: var(--color-light);
  border-radius: 16px;
  max-width: var(--modal-max-width);
  width: 100%;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  transform: scale(0.95);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal-container {
  transform: scale(1);
}

/* Modal Header */
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 28px;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.modal-header h2 {
  font-size: 22px;
  font-weight: 600;
  margin: 0;
  color: var(--color-darker);
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 28px;
  color: var(--color-subtle);
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: background 0.2s ease, color 0.2s ease;
}

.modal-close:hover {
  background: var(--color-border);
  color: var(--color-darker);
}

/* Modal Body */
.modal-body {
  padding: 28px;
  overflow-y: auto;
  flex: 1;
}

.modal-description {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 24px;
  font-family: var(--font-sans);
}

/* Alert Messages */
.alert {
  padding: 14px 18px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
}

.alert-success {
  background: #d1fae5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.alert-error {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

/* Form Styles */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-darker);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
  font-family: var(--font-sans);
  font-size: 14px;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: #fff;
  color: var(--color-dark);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(139, 115, 85, 0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B6B65' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

/* Checkbox Grid */
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.checkbox-item:hover {
  background: var(--color-feature-1);
}

.checkbox-item input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--color-accent);
}

.checkbox-item span {
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--color-dark);
}

/* Modal Footer */
.modal-footer {
  padding-top: 8px;
}

.modal-footer .btn-primary {
  width: 100%;
}

/* Responsive - Modal */
@media (max-width: 600px) {
  .modal-overlay {
    padding: 12px;
  }

  .modal-header {
    padding: 20px;
  }

  .modal-body {
    padding: 20px;
  }

  .modal-header h2 {
    font-size: 18px;
  }

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

/* Blog Articles */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.article-image {
  height: 160px;
  overflow: hidden;
}

.article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.article-card:hover .article-image img {
  transform: scale(1.05);
}

.article-content {
  padding: 20px;
}

.article-title {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-darker);
  line-height: 1.4;
  margin-bottom: 8px;
}

.article-resumo {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-date {
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--color-subtle);
}

.articles-footer {
  text-align: center;
  margin-top: 32px;
}

@media (max-width: 900px) {
  .articles-grid {
    grid-template-columns: 1fr;
  }
}