/* VETTED — Design System
   Identity Visual v1 · Chat 210 · "Verified Stillness"
   ================================================== */

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

/* === TOKENS === */
:root {
  /* Palette */
  --charcoal: #1a1a1a;
  --teal: #4a8c7f;
  --warm-bg: #f0ebe3;
  --brown-text: #5c4f42;
  --brown-light: #8a7d70;
  --light-rule: #d9d2c8;
  --panel-white: rgba(255, 255, 255, 0.45);

  /* Typography */
  --font-stamp: 'Lora', serif;
  --font-body: 'Lora', serif;
  --font-headline: 'Instrument Sans', sans-serif;
  --font-title: 'Instrument Serif', serif;
  --font-mono: 'IBM Plex Mono', monospace;

  /* Spacing */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 48px;
  --space-xl: 72px;
  --space-2xl: 96px;

  /* Layout */
  --max-width: 1080px;
  --radius: 0;
}

/* === BASE === */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--warm-bg);
  color: var(--brown-text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.65;
}

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

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

/* === LAYOUT === */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* === TYPOGRAPHY === */
.stamp {
  font-family: var(--font-stamp);
  font-weight: 700;
  color: var(--charcoal);
  letter-spacing: -0.02em;
}

.headline {
  font-family: var(--font-headline);
  font-weight: 700;
  color: var(--charcoal);
  line-height: 1.2;
}

.headline-teal {
  font-family: var(--font-headline);
  font-weight: 400;
  color: var(--teal);
  line-height: 1.3;
}

.title-serif {
  font-family: var(--font-title);
  font-weight: 400;
  color: var(--brown-text);
}

.title-serif-italic {
  font-family: var(--font-title);
  font-weight: 400;
  font-style: italic;
  color: var(--brown-text);
}

.mono {
  font-family: var(--font-mono);
  font-weight: 400;
  color: var(--brown-light);
}

.mono-bold {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--brown-light);
}

/* === HAIRLINE === */
.hairline {
  border: none;
  border-top: 1px solid var(--light-rule);
}

/* === ISOTIPO V === */
.isotipo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.2px solid var(--teal);
  background: transparent;
}

.isotipo span {
  font-family: var(--font-stamp);
  font-weight: 700;
  font-size: 18px;
  color: var(--teal);
  line-height: 1;
}

/* === BADGE VEREDICTO === */
.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  border: 1px solid var(--teal);
  padding: 3px 10px;
  border-radius: 2px;
}

/* === NAVIGATION === */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav-logo .stamp {
  font-size: 22px;
}

.nav-links {
  display: flex;
  gap: var(--space-md);
  list-style: none;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--brown-light);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--charcoal);
}

/* === HOME — HERO === */
.hero {
  padding: var(--space-2xl) 0 var(--space-xl);
  text-align: center;
}

.hero .stamp {
  font-size: 64px;
  margin-bottom: var(--space-xs);
}

.hero .tagline {
  font-family: var(--font-title);
  font-style: italic;
  font-size: 18px;
  color: var(--brown-text);
  margin-bottom: var(--space-lg);
}

/* === HOME — RESEARCHER CARDS === */
.researchers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  padding: var(--space-lg) 0;
}

.researcher-card {
  background: var(--panel-white);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
  transition: background 0.2s ease;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.researcher-card:hover {
  background: rgba(255, 255, 255, 0.65);
}

.researcher-card .isotipo {
  margin-bottom: var(--space-xs);
}

.researcher-card h3 {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 16px;
  color: var(--charcoal);
}

.researcher-card p {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--brown-light);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

/* === HOME — STATEMENT === */
.statement {
  text-align: center;
  padding: var(--space-xl) 0;
  max-width: 640px;
  margin: 0 auto;
}

.statement p {
  font-family: var(--font-title);
  font-style: italic;
  font-size: 17px;
  color: var(--brown-text);
  line-height: 1.7;
}

/* === FOOTER === */
.footer {
  padding: var(--space-lg) 0 var(--space-md);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-lg);
  padding-top: var(--space-md);
}

.footer-left {
  flex: 1;
}

.footer-left p {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--brown-light);
  line-height: 1.8;
  max-width: 480px;
}

.footer-right {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--brown-light);
  text-align: right;
}

/* === PERSONA PAGE — HEADER === */
.persona-header {
  padding: var(--space-xl) 0 var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.persona-header .back-link {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--brown-light);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s ease;
  position: absolute;
}

.persona-header .back-link:hover {
  color: var(--charcoal);
}

.persona-info {
  text-align: center;
  width: 100%;
  padding-top: var(--space-md);
}

.persona-info h1 {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 28px;
  color: var(--charcoal);
  margin-bottom: var(--space-xs);
}

.persona-info .specialty {
  font-family: var(--font-headline);
  font-weight: 400;
  font-size: 15px;
  color: var(--teal);
}

/* === PRODUCT LIST === */
.product-list {
  padding: var(--space-md) 0 var(--space-xl);
}

.product-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--light-rule);
  cursor: pointer;
  transition: padding-left 0.2s ease;
}

.product-item:first-child {
  border-top: 1px solid var(--light-rule);
}

.product-item:hover {
  padding-left: var(--space-xs);
}

.product-item h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 16px;
  color: var(--charcoal);
}

.product-item .arrow {
  font-size: 14px;
  color: var(--brown-light);
  transition: transform 0.2s ease;
}

.product-item:hover .arrow {
  transform: translateX(4px);
}

/* === PANEL LATERAL (PRODUCT DETAIL) === */
.product-panel {
  display: none;
  padding: var(--space-md) 0 var(--space-xl);
}

.product-panel.active {
  display: block;
}

.panel-back {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--brown-light);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: var(--space-lg);
  transition: color 0.2s ease;
  background: none;
  border: none;
}

.panel-back:hover {
  color: var(--charcoal);
}

.panel-header {
  margin-bottom: var(--space-md);
}

.panel-header h2 {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 22px;
  color: var(--charcoal);
  margin-bottom: var(--space-xs);
}

.panel-findings {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--brown-text);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
  max-width: 640px;
}

/* === EMAIL CAPTURE === */
.email-capture {
  background: var(--panel-white);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  max-width: 480px;
}

.email-capture h4 {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 15px;
  color: var(--charcoal);
  margin-bottom: 4px;
}

.email-capture p {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--brown-light);
  margin-bottom: var(--space-sm);
}

.email-form {
  display: flex;
  gap: var(--space-xs);
}

.email-form input[type="email"] {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 10px 14px;
  border: 1px solid var(--light-rule);
  background: var(--warm-bg);
  color: var(--charcoal);
  outline: none;
  transition: border-color 0.2s ease;
}

.email-form input[type="email"]::placeholder {
  color: var(--brown-light);
}

.email-form input[type="email"]:focus {
  border-color: var(--teal);
}

.email-form button {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 10px 20px;
  background: var(--charcoal);
  color: var(--warm-bg);
  border: none;
  cursor: pointer;
  transition: background 0.2s ease;
}

.email-form button:hover {
  background: var(--brown-text);
}

/* === VISIT PRODUCT LINK === */
.visit-product {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--brown-light);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: color 0.2s ease;
}

.visit-product:hover {
  color: var(--charcoal);
}

.visit-product svg {
  width: 12px;
  height: 12px;
}

/* === POPUP CONFIRMATION === */
.popup-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(26, 26, 26, 0.3);
  z-index: 100;
  align-items: center;
  justify-content: center;
}

.popup-overlay.active {
  display: flex;
}

.popup-box {
  background: var(--warm-bg);
  border: 1px solid var(--light-rule);
  padding: var(--space-lg) var(--space-lg);
  text-align: center;
  max-width: 360px;
}

.popup-box .isotipo {
  margin-bottom: var(--space-sm);
}

.popup-box h4 {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 16px;
  color: var(--charcoal);
  margin-bottom: var(--space-xs);
}

.popup-box p {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--brown-light);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-md);
  }

  .hero .stamp {
    font-size: 42px;
  }

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

  .nav-links {
    gap: var(--space-sm);
  }

  .nav-links a {
    font-size: 10px;
  }

  .footer-content {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .footer-right {
    text-align: left;
  }

  .email-form {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .researchers {
    grid-template-columns: 1fr;
  }

  .hero .stamp {
    font-size: 36px;
  }

  .hero .tagline {
    font-size: 15px;
  }
}