/* ============================================
   PRIMAL — Design System & Global Styles
   somosprimal.com.br
   ============================================ */

/* --- RESET --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
img, svg { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; border: none; background: none; }
button { cursor: pointer; }

/* --- TOKENS --- */
:root {
  /* Cores */
  --primary: #6B2FA0;
  --primary-dark: #4A1D73;
  --primary-light: #8B4FCF;
  --accent: #F2C529;
  --accent-dark: #D4A843;

  --bg-primary: #111118;
  --bg-secondary: #1C1C24;
  --bg-tertiary: #26263A;
  --bg-hover: #2E2E48;

  --text-primary: #F5F5F5;
  --text-secondary: #B8B8CC;
  --text-muted: #8888AA;

  --border: #2E2E48;
  --border-focus: #6B2FA0;

  --success: #2ECC71;
  --error: #E74C3C;

  /* Gradientes */
  --gradient-brand: linear-gradient(135deg, #6B2FA0 0%, #F2C529 100%);
  --gradient-hero: linear-gradient(180deg, #111118 0%, #1C1C24 100%);
  --gradient-card: linear-gradient(145deg, #1C1C24 0%, #26263A 100%);
  --gradient-cta: linear-gradient(135deg, #6B2FA0 0%, #8B4FCF 100%);

  /* Sombras */
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-elevated: 0 8px 48px rgba(0,0,0,0.6);
  --shadow-button: 0 2px 12px rgba(107,47,160,0.3);
  --glow-purple: 0 0 40px rgba(107,47,160,0.3);
  --glow-yellow: 0 0 30px rgba(242,197,41,0.15);

  /* Fontes */
  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Transicoes */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease-out;
}

/* --- BASE --- */
body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- TIPOGRAFIA --- */
.display-xl { font-family: var(--font-display); font-weight: 900; font-size: 4rem; line-height: 1.05; letter-spacing: -0.03em; }
.display-lg { font-family: var(--font-display); font-weight: 900; font-size: 3rem; line-height: 1.1; letter-spacing: -0.025em; }
.display-md { font-family: var(--font-display); font-weight: 800; font-size: 2.25rem; line-height: 1.15; letter-spacing: -0.02em; }
.display-sm { font-family: var(--font-display); font-weight: 700; font-size: 1.75rem; line-height: 1.2; letter-spacing: -0.01em; }
.heading    { font-family: var(--font-display); font-weight: 700; font-size: 1.375rem; line-height: 1.3; }
.subheading { font-family: var(--font-body); font-weight: 600; font-size: 1.125rem; line-height: 1.4; }
.body-lg    { font-size: 1.125rem; line-height: 1.6; }
.body-sm    { font-size: 0.875rem; line-height: 1.5; }
.caption    { font-size: 0.75rem; line-height: 1.4; font-weight: 500; }
.overline   { font-family: var(--font-display); font-size: 0.75rem; line-height: 1.4; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); }

.text-secondary { color: var(--text-secondary); }
.text-muted     { color: var(--text-muted); }
.text-accent    { color: var(--accent); }

/* --- LAYOUT --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
  position: relative;
}

.section--alt {
  background: var(--bg-secondary);
}

.section__header {
  margin-bottom: 48px;
}

.section__header .overline {
  margin-bottom: 12px;
}

.section__header .display-lg {
  margin-bottom: 16px;
}

.divider-brand {
  width: 60px;
  height: 3px;
  background: var(--gradient-brand);
  border-radius: 2px;
  margin-top: 16px;
}

/* --- NAVBAR --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  z-index: 1000;
  background: rgba(17,17,24,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition-base);
}

.navbar__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.navbar__logo svg { height: 32px; width: auto; }

.navbar__logo span {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

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

.navbar__links a {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: var(--transition-fast);
  position: relative;
}

.navbar__links a:hover {
  color: var(--text-primary);
}

.navbar__links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  background: none;
  border: none;
  cursor: pointer;
}

.navbar__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: var(--transition-base);
}

/* Mobile menu */
.navbar__mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
  opacity: 0;
  transform: translateX(100%);
  transition: var(--transition-slow);
}

.navbar__mobile-menu.open {
  display: flex;
  opacity: 1;
  transform: translateX(0);
}

.navbar__mobile-menu a {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.navbar__mobile-menu a:hover { color: var(--text-primary); }

/* --- BOTOES --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: 8px;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--primary-light);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--primary);
  color: var(--text-primary);
  box-shadow: var(--shadow-button);
}
.btn--primary:hover {
  background: var(--gradient-cta);
  box-shadow: var(--glow-purple);
  transform: translateY(-1px);
}
.btn--primary:active {
  background: var(--primary-dark);
  transform: translateY(0);
  box-shadow: none;
}

.btn--accent {
  background: var(--accent);
  color: #111118;
  box-shadow: var(--glow-yellow);
  font-weight: 700;
}
.btn--accent:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}
.btn--accent:active {
  transform: translateY(0);
}

.btn--secondary {
  background: transparent;
  border: 1.5px solid var(--primary);
  color: var(--primary-light);
}
.btn--secondary:hover {
  background: rgba(107,47,160,0.1);
  border-color: var(--primary-light);
}

.btn--sm { padding: 8px 20px; font-size: 0.8125rem; }
.btn--md { padding: 14px 32px; font-size: 0.9375rem; }
.btn--lg { padding: 18px 40px; font-size: 1.0625rem; }

/* --- CARDS --- */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  transition: all var(--transition-base);
}

.card:hover {
  border-color: rgba(107,47,160,0.4);
  box-shadow: 0 4px 32px rgba(107,47,160,0.12);
  transform: translateY(-2px);
}

.card--highlighted {
  border-color: var(--accent);
  box-shadow: var(--glow-yellow);
  transform: scale(1.02);
}

.card--highlighted:hover {
  border-color: var(--accent);
  box-shadow: 0 0 50px rgba(242,197,41,0.2);
}

/* --- HERO --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 72px;
  background: var(--gradient-hero);
}

.hero__glow-tl {
  position: absolute;
  top: -150px; left: -150px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(107,47,160,0.2) 0%, transparent 70%);
  pointer-events: none;
}

.hero__glow-br {
  position: absolute;
  bottom: -200px; right: -200px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(242,197,41,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero__claw {
  position: absolute;
  top: 60px;
  right: 10%;
  display: flex;
  gap: 12px;
  transform: rotate(-20deg);
  opacity: 0.07;
  pointer-events: none;
}

.hero__claw div {
  width: 10px;
  border-radius: 5px;
}

.hero__claw .c1 { height: 160px; background: var(--primary-light); }
.hero__claw .c2 { height: 220px; background: var(--accent); margin-top: -30px; }
.hero__claw .c3 { height: 140px; background: var(--primary-light); margin-top: 10px; }

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero__content .overline {
  margin-bottom: 20px;
}

.hero__content .display-xl {
  margin-bottom: 24px;
}

.hero__content .body-lg {
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 32px;
}

.hero__metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 2;
}

.hero__metric-number {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2.25rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 4px;
}

.hero__metric-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* --- PROBLEM SECTION --- */
.problem-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.problem-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}

.problem-card__icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(231,76,60,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--error);
  font-weight: 700;
  font-size: 1.25rem;
}

.problem-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 8px;
}

.problem-card__text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --- GUIDE/ABOUT SECTION --- */
.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.ecosystem-item {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  transition: var(--transition-base);
}

.ecosystem-item:hover {
  border-color: rgba(107,47,160,0.3);
}

.ecosystem-item__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9375rem;
  margin-bottom: 4px;
}

.ecosystem-item__desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.ecosystem-note {
  margin-top: 24px;
  font-size: 0.875rem;
  color: var(--text-muted);
  font-style: italic;
}

/* --- METHOD (3 STEPS) --- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  position: relative;
  margin-top: 48px;
}

.steps::before {
  content: '';
  position: absolute;
  top: 48px;
  left: 16.66%;
  right: 16.66%;
  height: 2px;
  background: var(--gradient-brand);
  z-index: 0;
}

.step {
  text-align: center;
  position: relative;
  z-index: 1;
  padding: 0 16px;
}

.step__number {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 4rem;
  color: var(--accent);
  opacity: 0.2;
  line-height: 1;
  margin-bottom: 16px;
}

.step__card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}

.step__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.step__text {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* --- SERVICES --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  transition: all var(--transition-base);
}

.service-card:hover {
  border-color: rgba(107,47,160,0.4);
  transform: translateY(-2px);
}

.service-card__icon {
  width: 48px;
  height: 48px;
  color: var(--accent);
  margin-bottom: 16px;
}

.service-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
}

.service-card__list {
  margin-bottom: 20px;
}

.service-card__list li {
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: 4px 0 4px 20px;
  position: relative;
}

.service-card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.service-card__link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary-light);
  transition: var(--transition-fast);
}

.service-card__link:hover {
  color: var(--text-primary);
  text-decoration: underline;
}

/* --- DIFFERENTIALS --- */
.differentials-list {
  max-width: 800px;
}

.differential-item {
  display: flex;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}

.differential-item:last-child {
  border-bottom: none;
}

.differential-item__number {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 2rem;
  color: var(--accent);
  min-width: 56px;
  line-height: 1;
}

.differential-item__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  margin-bottom: 6px;
}

.differential-item__text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

/* --- PLANS --- */
.plans-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.plan-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  position: relative;
  transition: all var(--transition-base);
}

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

.plan-card--featured {
  border-color: var(--accent);
  box-shadow: var(--glow-yellow);
  transform: scale(1.03);
  z-index: 2;
}

.plan-card--featured:hover {
  transform: scale(1.03) translateY(-4px);
}

.plan-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #111118;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 4px 16px;
  border-radius: 4px;
  white-space: nowrap;
}

.plan-card__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}

.plan-card__subtitle {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.plan-card__price {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.75rem;
  margin-bottom: 4px;
}

.plan-card__period {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.plan-card__features {
  margin-bottom: 24px;
}

.plan-card__features li {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  padding: 6px 0 6px 24px;
  position: relative;
}

.plan-card__features li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.plan-card__features li.disabled {
  color: var(--text-muted);
  text-decoration: line-through;
  opacity: 0.5;
}

.plan-card__features li.disabled::before {
  content: '\2715';
  color: var(--text-muted);
}

.plan-card .btn { width: 100%; }

.plans-note {
  text-align: center;
  margin-top: 24px;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* --- CTA FINAL --- */
.cta-final {
  text-align: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--primary-dark) 0%, var(--bg-primary) 100%);
}

.cta-final__claw {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) rotate(-20deg);
  display: flex;
  gap: 20px;
  opacity: 0.05;
  pointer-events: none;
}

.cta-final__claw div { width: 16px; border-radius: 8px; }
.cta-final__claw .c1 { height: 300px; background: var(--primary-light); }
.cta-final__claw .c2 { height: 400px; background: var(--accent); margin-top: -50px; }
.cta-final__claw .c3 { height: 260px; background: var(--primary-light); margin-top: 20px; }

.cta-final .container {
  position: relative;
  z-index: 2;
}

.cta-final .display-lg { margin-bottom: 16px; }
.cta-final .body-lg { color: var(--text-secondary); margin-bottom: 32px; }
.cta-final .caption { margin-top: 16px; color: var(--text-muted); }

/* --- FOOTER --- */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 64px 0 24px;
}

.footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__brand .navbar__logo { margin-bottom: 4px; }

.footer__brand p {
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 280px;
}

.footer__col-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer__col a {
  display: block;
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: 4px 0;
  transition: var(--transition-fast);
}

.footer__col a:hover { color: var(--text-primary); }

.footer__social {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.footer__social a {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.footer__social a:hover {
  background: var(--primary);
  color: var(--text-primary);
}

.footer__bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* --- FORMS (diagnostico) --- */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-label .required {
  color: var(--error);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 1rem;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(107,47,160,0.2);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--error);
  box-shadow: 0 0 0 3px rgba(231,76,60,0.2);
}

.form-error {
  font-size: 0.75rem;
  color: var(--error);
  margin-top: 4px;
  display: none;
}

.form-error.visible {
  display: block;
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%238888AA' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 6l3.5 4 3.5-4z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

/* Diagnostico page layout */
.diagnostico-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 48px;
  align-items: start;
}

.diagnostico-benefits {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  position: sticky;
  top: 96px;
}

.benefit-item {
  display: flex;
  gap: 12px;
  padding: 12px 0;
}

.benefit-item__check {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: rgba(107,47,160,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-weight: 700;
  font-size: 0.875rem;
  flex-shrink: 0;
}

.benefit-item__text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

/* Form success state */
.form-success {
  text-align: center;
  padding: 48px 24px;
  display: none;
}

.form-success.visible {
  display: block;
}

.form-success__icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(46,204,113,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  color: var(--success);
  font-size: 2rem;
}

/* --- SCROLL ANIMATIONS --- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

.animate-on-scroll.delay-1 { transition-delay: 100ms; }
.animate-on-scroll.delay-2 { transition-delay: 200ms; }
.animate-on-scroll.delay-3 { transition-delay: 300ms; }
.animate-on-scroll.delay-4 { transition-delay: 400ms; }

/* --- GRADIENT BAR (top of page) --- */
.gradient-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
  z-index: 1001;
}

/* --- 404 PAGE --- */
.page-404 {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 72px;
}

/* --- RESPONSIVE --- */
@media (max-width: 1279px) {
  .display-xl { font-size: 3rem; }
  .display-lg { font-size: 2.5rem; }

  .footer__top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 767px) {
  .display-xl { font-size: 2.25rem; }
  .display-lg { font-size: 1.875rem; }
  .display-md { font-size: 1.5rem; }

  .section { padding: 48px 0; }

  /* Navbar mobile */
  .navbar__links { display: none; }
  .navbar__hamburger { display: flex; }

  /* Hero */
  .hero { min-height: auto; padding: 120px 0 48px; }
  .hero__metrics {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 40px;
    padding-top: 32px;
  }
  .hero__claw { display: none; }

  /* Problem */
  .problem-cards { grid-template-columns: 1fr; }

  /* Ecosystem */
  .ecosystem-grid { grid-template-columns: repeat(2, 1fr); }

  /* Steps */
  .steps {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .steps::before { display: none; }
  .step { text-align: left; }
  .step__number { font-size: 3rem; }

  /* Services */
  .services-grid { grid-template-columns: 1fr; }

  /* Plans */
  .plans-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }
  .plan-card--featured {
    transform: none;
    order: -1;
  }
  .plan-card--featured:hover {
    transform: translateY(-4px);
  }

  /* Footer */
  .footer__top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer__bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  /* Diagnostico */
  .diagnostico-grid {
    grid-template-columns: 1fr;
  }
  .diagnostico-benefits {
    position: static;
    order: -1;
  }
}

/* --- REDUCED MOTION --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .animate-on-scroll {
    opacity: 1;
    transform: none;
  }
}