/* ============================================
   FIEL GUIDE — Informational Website Styles
   Design System: Lisbon-inspired azulejo palette
   ============================================ */

/* === CSS Custom Properties === */
:root {
  /* Base Colors (Light Mode — Warm Stone) */
  --bg-primary: #F0EBE3;
  --bg-surface: #FAF8F5;
  --bg-elevated: #FFFFFF;
  --text-primary: #2D2A26;
  --text-secondary: #6B6560;
  --text-muted: #9A9590;

  /* Accents */
  --golden-sand: #C4A77D;
  --golden-sand-hover: #A68B5B;
  --golden-sand-subtle: rgba(196, 167, 125, 0.1);
  --azulejo-blue: #2C5F8A;
  --azulejo-blue-hover: #1E4568;
  --azulejo-blue-subtle: rgba(44, 95, 138, 0.1);

  /* Data Viz / Fiel Palette */
  --alfama-blue: #325D79;
  --tram-yellow: #F2C14E;
  --estrela-green: #5E7153;
  --pombaline-teal: #7BA0A6;

  /* Semantic */
  --success: #4A7C59;
  --warning: #C4A77D;
  --error: #B85450;
  --info: #2C5F8A;

  /* Typography */
  --font-heading: 'GeneralSans', 'Manrope', system-ui, -apple-system, sans-serif;
  --font-body: 'Manrope', system-ui, -apple-system, sans-serif;
  --font-serif: 'Literata', 'Georgia', serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(45, 42, 38, 0.05);
  --shadow-md: 0 4px 12px rgba(45, 42, 38, 0.08);
  --shadow-lg: 0 8px 24px rgba(45, 42, 38, 0.12);
  --shadow-xl: 0 16px 48px rgba(45, 42, 38, 0.16);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p { color: var(--text-secondary); }
em { font-family: var(--font-serif); font-style: italic; }

.lead {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.8;
  color: var(--text-secondary);
}

.overline {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--golden-sand);
  margin-bottom: var(--space-md);
}

.mt-lg { margin-top: var(--space-lg); }

/* === Layout === */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

section {
  padding: var(--space-4xl) 0;
  position: relative;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  text-decoration: none;
}

.btn--primary {
  background: var(--azulejo-blue);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn--primary:hover {
  background: var(--azulejo-blue-hover);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.btn--secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid rgba(45, 42, 38, 0.2);
}

.btn--secondary:hover {
  border-color: var(--golden-sand);
  color: var(--golden-sand-hover);
  transform: translateY(-2px);
}

.btn--large {
  padding: 1rem 2rem;
  font-size: 1rem;
}

/* === Navbar === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-lg) 0;
  transition: all 0.4s ease;
}

.navbar.scrolled {
  background: rgba(240, 235, 227, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: var(--space-md) 0;
  box-shadow: var(--shadow-sm);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.navbar__logo-text {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.navbar__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.6rem 1.25rem;
  background: var(--azulejo-blue);
  color: #fff;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.85rem;
  transition: all 0.3s ease;
}

.navbar__cta:hover {
  background: var(--azulejo-blue-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* === Hero === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: var(--space-4xl) 0;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

.hero__gradient {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    180deg,
    rgba(240, 235, 227, 0.7) 0%,
    rgba(240, 235, 227, 0.85) 30%,
    rgba(240, 235, 227, 0.92) 60%,
    rgba(240, 235, 227, 1) 100%
  );
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  z-index: 2;
  animation: float 8s ease-in-out infinite;
  opacity: 0.4;
}

.hero__orb--gold {
  width: 400px;
  height: 400px;
  background: var(--golden-sand);
  top: 15%;
  right: -5%;
  animation-delay: 0s;
}

.hero__orb--blue {
  width: 300px;
  height: 300px;
  background: var(--azulejo-blue);
  bottom: 20%;
  left: -5%;
  animation-delay: 2s;
}

.hero__orb--teal {
  width: 250px;
  height: 250px;
  background: var(--pombaline-teal);
  top: 50%;
  right: 20%;
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}

.hero__content {
  position: relative;
  z-index: 3;
  text-align: center;
  max-width: 750px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.5rem 1.25rem;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(196, 167, 125, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--tram-yellow);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero__title {
  margin-bottom: var(--space-xl);
  letter-spacing: -0.03em;
}

.hero__title em {
  color: var(--azulejo-blue);
  font-family: var(--font-serif);
  font-style: italic;
}

.hero__subtitle {
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
}

.hero__subtitle em {
  color: var(--golden-sand-hover);
  font-weight: 500;
}

.hero__actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.hero__scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  animation: bobble 2s ease-in-out infinite;
}

.hero__scroll-hint svg {
  width: 20px;
  height: 20px;
  stroke: var(--text-muted);
}

@keyframes bobble {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* === Problem Section === */
.problem {
  background: var(--bg-surface);
}

.problem__header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}

.problem__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  margin-bottom: var(--space-3xl);
}

.stat-card {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  box-shadow: var(--shadow-sm);
  border-top: 4px solid transparent;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-card--gold { border-top-color: var(--tram-yellow); }
.stat-card--blue { border-top-color: var(--alfama-blue); }
.stat-card--teal { border-top-color: var(--pombaline-teal); }

.stat-card__number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: var(--space-md);
}

.stat-card--gold .stat-card__number { color: var(--golden-sand-hover); }
.stat-card--blue .stat-card__number { color: var(--alfama-blue); }
.stat-card--teal .stat-card__number { color: var(--pombaline-teal); }

.stat-card__label {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.problem__critique {
  text-align: center;
}

.problem__critique h3 {
  margin-bottom: var(--space-2xl);
}

.problem__critique-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.critique-item {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: left;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease;
}

.critique-item:hover {
  transform: translateY(-3px);
}

.critique-item__icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.critique-item h4 {
  margin-bottom: var(--space-sm);
}

.critique-item p {
  font-size: 0.9rem;
  line-height: 1.6;
}

/* === Concept Section (What Is Fiel Guide) === */
.concept {
  position: relative;
  overflow: hidden;
}

.concept__bg-accent {
  position: absolute;
  top: -10%;
  right: -20%;
  width: 60%;
  opacity: 0.08;
  z-index: 0;
  pointer-events: none;
}

.concept__bg-accent img {
  width: 100%;
}

.concept__header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
  position: relative;
  z-index: 1;
}

.concept__modes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  position: relative;
  z-index: 1;
}

.mode-card {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl) var(--space-xl);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.mode-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.mode-card__accent-bar {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
}

.mode-card--gold .mode-card__accent-bar { background: var(--tram-yellow); }
.mode-card--blue .mode-card__accent-bar { background: var(--alfama-blue); }
.mode-card--teal .mode-card__accent-bar { background: var(--pombaline-teal); }

.mode-card__icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.mode-card h3 {
  margin-bottom: var(--space-sm);
}

.mode-card__tagline {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--golden-sand-hover);
  font-size: 0.9rem;
  margin-bottom: var(--space-md);
}

.mode-card p:last-child {
  font-size: 0.9rem;
  line-height: 1.6;
}

/* === How It Works === */
.how-it-works {
  background: var(--bg-surface);
}

.how-it-works__header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-3xl);
}

.how-it-works__steps {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
  position: relative;
}

.how-it-works__steps::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 50px;
  bottom: 50px;
  width: 2px;
  background: linear-gradient(to bottom, var(--tram-yellow), var(--azulejo-blue), var(--pombaline-teal), var(--estrela-green));
  border-radius: 2px;
}

.step {
  display: flex;
  gap: var(--space-xl);
  align-items: flex-start;
  position: relative;
}

.step__number {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--bg-elevated);
  border: 2px solid var(--golden-sand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--golden-sand-hover);
  box-shadow: var(--shadow-md);
  position: relative;
  z-index: 1;
}

.step__content {
  flex: 1;
  padding-top: var(--space-sm);
}

.step__content h3 {
  margin-bottom: var(--space-sm);
}

.step__content p {
  font-size: 0.95rem;
  line-height: 1.7;
}

/* === Why Different === */
.different__header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}

.different__comparison {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  margin-bottom: var(--space-3xl);
  max-width: 850px;
  margin-left: auto;
  margin-right: auto;
}

.comparison-card {
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-sm);
}

.comparison-card--old {
  background: var(--bg-surface);
  border: 1px solid rgba(45, 42, 38, 0.08);
}

.comparison-card--new {
  background: var(--bg-elevated);
  border: 1px solid rgba(44, 95, 138, 0.15);
  box-shadow: var(--shadow-md);
}

.comparison-card h3 {
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 2px solid var(--bg-primary);
  font-size: 1.1rem;
}

.comparison-card--new h3 {
  color: var(--azulejo-blue);
  border-bottom-color: var(--azulejo-blue-subtle);
}

.comparison-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.comparison-card li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

.comparison-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
}

.comparison-icon--x {
  background: rgba(184, 84, 80, 0.1);
  color: var(--error);
}

.comparison-icon--check {
  background: rgba(74, 124, 89, 0.1);
  color: var(--success);
}

.different__pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.pillar {
  text-align: center;
  padding: var(--space-xl);
}

.pillar__icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.pillar h4 {
  margin-bottom: var(--space-sm);
  font-size: 1rem;
}

.pillar p {
  font-size: 0.85rem;
  line-height: 1.6;
}

/* === Lisbon Section === */
.lisbon {
  background: var(--bg-surface);
}

.lisbon__header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}

.lisbon__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  margin-bottom: var(--space-3xl);
}

.lisbon-card {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease;
}

.lisbon-card:hover {
  transform: translateY(-3px);
}

.lisbon-card__color {
  width: 100%;
  height: 6px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
}

.lisbon-card h4 {
  margin-bottom: var(--space-sm);
  font-size: 1rem;
}

.lisbon-card p {
  font-size: 0.85rem;
  line-height: 1.6;
}

.lisbon__quote {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  padding: var(--space-2xl);
  border-left: 4px solid var(--golden-sand);
  background: var(--bg-elevated);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  box-shadow: var(--shadow-sm);
}

.lisbon__quote p {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-primary);
}

.lisbon__quote em {
  color: var(--azulejo-blue);
}

/* === Ecosystem Section === */
.ecosystem__header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}

.ecosystem__flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  max-width: 850px;
  margin: 0 auto;
}

.eco-card {
  flex: 1;
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform 0.3s ease;
}

.eco-card:hover {
  transform: translateY(-3px);
}

.eco-card--reviewed {
  border-top: 4px solid var(--tram-yellow);
}

.eco-card--guide {
  border-top: 4px solid var(--azulejo-blue);
}

.eco-card__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

.eco-card h3 {
  margin-bottom: var(--space-md);
}

.eco-card p {
  font-size: 0.9rem;
  line-height: 1.6;
}

.eco-card__arrow {
  font-size: 2rem;
  color: var(--golden-sand);
  font-weight: 700;
  flex-shrink: 0;
}

/* === Waitlist Section === */
.waitlist {
  background: linear-gradient(135deg, var(--alfama-blue) 0%, var(--azulejo-blue-hover) 100%);
  color: #fff;
  text-align: center;
}

.waitlist__content {
  max-width: 560px;
  margin: 0 auto;
}

.waitlist .overline {
  color: var(--tram-yellow);
}

.waitlist h2 {
  color: #fff;
  margin-bottom: var(--space-lg);
}

.waitlist p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-2xl);
}

.waitlist__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.waitlist__input-group {
  width: 100%;
}

.waitlist__input {
  width: 100%;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(4px);
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: all 0.3s ease;
}

.waitlist__input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.waitlist__input:focus {
  outline: none;
  border-color: var(--tram-yellow);
  background: rgba(255, 255, 255, 0.15);
}

.waitlist__submit {
  width: 100%;
  padding: 1rem;
  border: none;
  border-radius: var(--radius-md);
  background: var(--tram-yellow);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.waitlist__submit:hover {
  background: #e3b340;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(242, 193, 78, 0.3);
}

.waitlist__privacy {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5) !important;
  margin-top: var(--space-sm);
  margin-bottom: 0 !important;
}

/* === Footer === */
.footer {
  background: var(--text-primary);
  color: rgba(255, 255, 255, 0.6);
  padding: var(--space-2xl) 0;
}

.footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.footer__logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
}

.footer__divider {
  width: 1px;
  height: 20px;
  background: rgba(255, 255, 255, 0.2);
}

.footer__konnecturs {
  font-size: 0.85rem;
}

.footer__konnecturs a {
  color: var(--tram-yellow);
  text-decoration: none;
  transition: opacity 0.3s;
}

.footer__konnecturs a:hover {
  opacity: 0.8;
}

.footer__copy {
  font-size: 0.8rem;
}

/* === Scroll Reveal Animations === */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* === Responsive === */
@media (max-width: 1024px) {
  .problem__stats { grid-template-columns: repeat(3, 1fr); }
  .different__pillars { grid-template-columns: repeat(2, 1fr); }
  .lisbon__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  section { padding: var(--space-3xl) 0; }

  .container { padding: 0 var(--space-lg); }

  .problem__stats { grid-template-columns: 1fr; gap: var(--space-md); }
  .problem__critique-grid { grid-template-columns: 1fr; gap: var(--space-md); }

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

  .how-it-works__steps::before { display: none; }

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

  .different__pillars {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

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

  .ecosystem__flow {
    flex-direction: column;
  }

  .eco-card__arrow {
    transform: rotate(90deg);
  }

  .footer .container {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .hero__actions {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  h1 { font-size: 2.25rem; }

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

  .hero__orb { display: none; }
}