/* ==========================================================================
   GOTT - Grupo de Observação e Transformação do Território | UFSC
   Global Stylesheet
   ========================================================================== */

/* --- Import Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

/* --- CSS Variables & Design Tokens (Tema Urbano Minimalista) --- */
:root {
  /* Colors - Base/Aço/Concreto */
  --color-navy: #3d3d3d;
  /* Slate 900 -> Dark Gray */
  --color-navy-light: #4A4A4A;
  /* Slate 800 -> Medium Dark Gray */

  /* Colors - Acento/Mapeamento/Energia */
  --color-orange: #f97316;
  /* Orange 500 */
  --color-orange-hover: #ea580c;
  /* Orange 600 */
  --color-orange-light: #fff2e6;
  /* Orange 100 */

  /* Colors - Superfícies */
  --color-bg-light: #ffffff;
  /* White */
  --color-text-main: #2b2b2b;
  /* Very Dark */
  --color-text-muted: #64748B;
  /* Slate 500 */

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.4s cubic-bezier(0.16, 1, 0.3, 1);

  /* Modern Shadows (Hairline Bento) */
  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.05), 0 4px 6px -4px rgba(15, 23, 42, 0.05);
  --shadow-hover: 0 20px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
}

/* --- Base Resets & Global Styles --- */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg-light);
  color: var(--color-text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  /* Estética arquiteto/geométrica */
}

/* --- Custom Utilities --- */
.bg-navy {
  background-color: var(--color-navy);
}

.text-navy {
  color: var(--color-navy);
}

.bg-orange {
  background-color: var(--color-orange);
}

.text-orange {
  color: var(--color-orange);
}

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

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

/* Grid Background Pattern (Remetendo a malha urbana/cadastro) */
.bg-grid-pattern {
  background-image:
    linear-gradient(to right, rgba(61, 61, 61, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(61, 61, 61, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
}

.bg-grid-pattern-dark {
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* --- Components & Micro-animations --- */

/* Glassmorphism Header */
.glass-header {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  transition: all var(--transition-normal);
}

.glass-header.scrolled {
  box-shadow: var(--shadow-sm);
  background: rgba(255, 255, 255, 0.95);
}

/* Nav Links Hover Effect */
.nav-link {
  position: relative;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-navy);
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 50%;
  background-color: var(--color-orange);
  transition: all var(--transition-fast);
  transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Primary Button */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-orange);
  color: white;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 14px 0 rgba(242, 100, 25, 0.39);
}

.btn-primary:hover {
  background-color: var(--color-orange-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(242, 100, 25, 0.4);
}

/* Feature Cards */
.feature-card {
  background: white;
  border-radius: 1rem;
  padding: 2rem;
  border: 1px solid rgba(0, 0, 0, 0.03);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-orange), var(--color-navy));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

/* Loader */
.loader {
  border: 4px solid rgba(242, 100, 25, 0.2);
  border-top: 4px solid var(--color-orange);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

/* Animations */
.animate-fade-in-up {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s ease-out forwards;
}

.delay-100 {
  animation-delay: 100ms;
}

.delay-200 {
  animation-delay: 200ms;
}

.delay-300 {
  animation-delay: 300ms;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Infinite Scroll (Partners) */
.animate-scroll {
  display: flex;
  width: calc(250px * 8);
  /* Base width * number of items */
  animation: scroll 30s linear infinite;
}

.animate-scroll:hover {
  animation-play-state: paused;
}

@keyframes scroll {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(calc(-250px * 4));
  }
}

/* Prose overrides for Markdown content */
.prose {
  color: var(--color-text-main);
  max-width: 65ch;
  line-height: 1.75;
}

.prose h2,
.prose h3 {
  font-family: var(--font-heading);
  color: var(--color-navy);
  margin-top: 2em;
  margin-bottom: 1em;
}

.prose a {
  color: var(--color-orange);
  text-decoration: underline;
  transition: color 0.2s;
}

.prose a:hover {
  color: var(--color-orange-hover);
}

.prose ul {
  list-style-type: disc;
  padding-left: 1.5em;
  margin-bottom: 1em;
}

.prose li {
  margin-bottom: 0.5em;
}

/* Dropdown styling */
.group:hover .group-hover\:visible {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
}

/* Hero Section Gradient Overlay */
.hero-gradient {
  background: linear-gradient(135deg, var(--color-navy-light) 0%, var(--color-navy) 100%);
}