:root {
  --color-primary: #a8956f;
  --color-accent: #6b9a8c;
  --color-bg: #faf9f6;
  --color-surface: #ffffff;
  --color-text-main: #2c2c2c;
  --color-text-muted: #7a7a7a;
  --color-border: #e8e8e8;
  --color-success: #6b9a8c;
  --color-error: #d97f68;
  --gradient-primary: linear-gradient(135deg, #a8956f 0%, #6b9a8c 100%);
  --font-heading: "Playfair Display", serif;
  --font-body: "Lato", sans-serif;
}

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

html,
body {
  font-family: var(--font-body);
  color: var(--color-text-main);
  background-color: var(--color-bg);
  line-height: 1.6;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-text-main);
}

h1 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}
h2 {
  font-size: 2.2rem;
  margin-bottom: 1.2rem;
}
h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.lead {
  font-size: 1.2rem;
  color: var(--color-text-muted);
}

/* Header */
#header {
  background-color: rgba(255, 255, 255, 0.95);
  transition: all 0.3s ease;
}

#header.scrolled {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.3rem;
}

.brand-icon {
  color: var(--color-primary);
  font-size: 1.5rem;
}

.nav-link {
  color: var(--color-text-main) !important;
  font-weight: 500;
  margin: 0 0.5rem;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: var(--color-primary) !important;
}

/* Hero Section */
.hero-section {
  background: linear-gradient(135deg, rgba(248, 247, 244, 1) 0%, rgba(237, 244, 241, 1) 100%);
  padding: 6rem 0;
}

.hero-title {
  font-size: 3.5rem;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.3rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.hero-benefits {
  margin-bottom: 2rem;
}

.benefit-item {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1rem;
  font-weight: 500;
}

.benefit-item i {
  color: var(--color-accent);
  font-size: 1.2rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-card {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

/* Buttons */
.btn-primary {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
  padding: 0.7rem 2rem;
  font-weight: 600;
  border-radius: 6px;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(168, 149, 111, 0.3);
}

.btn-outline-primary {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline-primary:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-sm {
  padding: 0.5rem 1.2rem;
  font-size: 0.9rem;
}

/* Sections */
.section-problems,
.section-audience,
.section-approach,
.section-services,
.section-process,
.section-cases,
.section-faq,
.section-contacts,
.section-final-cta {
  padding: 5rem 0;
}

.section-problems {
  background-color: var(--color-surface);
}

.section-audience {
  background-color: rgba(237, 244, 241, 0.5);
}

.section-approach {
  background-color: var(--color-surface);
}

.section-services {
  background-color: rgba(248, 247, 244, 0.8);
}

.section-process {
  background-color: var(--color-surface);
}

.section-cases {
  background-color: rgba(237, 244, 241, 0.5);
}

.section-faq {
  background-color: var(--color-surface);
}

.section-contacts {
  background-color: rgba(248, 247, 244, 0.8);
}

.section-final-cta {
  background: var(--gradient-primary);
  color: white;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 3rem;
}

/* Cards */
.card-problem,
.card-audience,
.card-service,
.card-case,
.result-box {
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  transition: all 0.3s ease;
  height: 100%;
}

.card-problem:hover,
.card-audience:hover,
.card-service:hover,
.card-case:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.icon-box,
.audience-icon,
.service-icon,
.result-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--color-primary);
}

.card-service {
  display: flex;
  flex-direction: column;
}

.service-benefits {
  flex-grow: 1;
  margin: 1rem 0;
  padding-left: 1.5rem;
}

.service-benefits li {
  margin-bottom: 0.5rem;
  color: var(--color-text-muted);
}

/* Timeline */
.timeline {
  position: relative;
  padding: 2rem 0;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 100%;
  background-color: var(--color-accent);
}

.timeline-item {
  margin-bottom: 3rem;
  width: 50%;
  opacity: 0;
  animation: slideIn 0.6s ease forwards;
}

.timeline-item:nth-child(odd) {
  margin-left: 0;
  text-align: right;
  padding-right: 3rem;
  animation-delay: 0.2s;
}

.timeline-item:nth-child(even) {
  margin-left: 50%;
  padding-left: 3rem;
  animation-delay: 0.4s;
}

.timeline-number {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 50px;
  background-color: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 1.2rem;
  z-index: 1;
}

.timeline-content {
  background-color: var(--color-surface);
  padding: 1.5rem;
  border-radius: 8px;
  border-left: 3px solid var(--color-accent);
}

.timeline-item:nth-child(even) .timeline-content {
  border-left: none;
  border-right: 3px solid var(--color-accent);
}

.timeline-item h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

/* Accordion */
.accordion-button {
  background-color: var(--color-surface);
  color: var(--color-text-main);
  border-radius: 8px;
  margin-bottom: 0.5rem;
  border: 1px solid var(--color-border);
}

.accordion-button:not(.collapsed) {
  background-color: rgba(168, 149, 111, 0.1);
  box-shadow: none;
}

.accordion-button:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 0.25rem rgba(168, 149, 111, 0.25);
}

.accordion-body {
  background-color: rgba(255, 255, 255, 0.5);
  padding: 1.5rem;
}

/* Forms */
.contact-form {
  background-color: var(--color-surface);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--color-border);
}

.form-label {
  font-weight: 600;
  color: var(--color-text-main);
  margin-bottom: 0.5rem;
}

.form-control {
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 0.8rem 1rem;
  font-family: var(--font-body);
  transition: border-color 0.3s ease;
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 0.2rem rgba(168, 149, 111, 0.1);
}

.form-check-input {
  border-color: var(--color-border);
}

.form-check-input:checked {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

/* Footer */
.footer {
  background-color: #2c2c2c;
  color: white;
  margin-top: 5rem;
}

.footer-title {
  font-weight: 700;
  margin-bottom: 1.2rem;
  color: white;
}

.footer-description {
  font-size: 0.95rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
  margin-bottom: 1rem;
}

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer-contact {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 1rem;
}

.footer-contact a {
  color: var(--color-primary);
  text-decoration: none;
}

.footer-divider {
  border-color: rgba(255, 255, 255, 0.2);
  margin: 2rem 0;
}

.footer-copyright {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

/* Animations */
@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.reveal-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
  h1 {
    font-size: 2.2rem;
  }
  h2 {
    font-size: 1.8rem;
  }
  h3 {
    font-size: 1.4rem;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .timeline::before {
    left: -8px;
  }

  .timeline-item {
    width: 100%;
    margin-left: 0 !important;
    padding-left: 3rem !important;
    padding-right: 0 !important;
    text-align: left !important;
  }

  .timeline-item:nth-child(odd) {
    padding-right: 0;
  }

  .timeline-item:nth-child(even) {
    margin-left: 0;
    padding-left: 3rem;
  }

  .timeline-number {
    left: -27px;
  }

  .timeline-content {
    border-left: 3px solid var(--color-accent);
    border-right: none;
  }

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

  .btn {
    width: 100%;
  }

  .nav-link {
    margin: 0.25rem 0;
  }
}

@media (max-width: 576px) {
  h1 {
    font-size: 1.8rem;
  }

  .hero-section {
    padding: 3rem 0;
  }

  .section-problems,
  .section-audience,
  .section-approach,
  .section-services,
  .section-process,
  .section-cases,
  .section-faq,
  .section-contacts {
    padding: 3rem 0;
  }

  .card-problem,
  .card-audience,
  .card-service,
  .card-case {
    padding: 1.5rem;
  }

  .contact-form {
    padding: 1.5rem;
  }
}

/* Utility Classes */
.text-white-75 {
  color: rgba(255, 255, 255, 0.75);
}

.reveal-on-scroll {
  opacity: 0;
}

.reveal-on-scroll.visible {
  opacity: 1;
}