/* ============================================
   EARLIA LABS — Website Styles
   Light clinical theme based on the app
   ============================================ */

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

:root {
  /* Clinical Light Palette (from app light theme) */
  --color-bg-primary: #f9fafb;       /* gray-50 */
  --color-bg-secondary: #f1f5f9;     /* slate-100 */
  --color-bg-tertiary: #f3f4f6;      /* gray-100 */
  --color-bg-white: #ffffff;
  --color-surface: #ffffff;

  --color-border: #e2e8f0;           /* slate-200 */
  --color-border-hover: #cbd5e1;     /* slate-300 */

  --color-text-primary: #1e293b;     /* slate-800 */
  --color-text-secondary: #64748b;   /* slate-500 */
  --color-text-muted: #94a3b8;       /* slate-400 */

  --color-accent: #2563eb;           /* blue-600 */
  --color-accent-dark: #1d4ed8;      /* blue-700 */
  --color-accent-light: #dbeafe;     /* blue-100 */
  --color-indigo: #4f46e5;           /* indigo-600 */

  --color-success: #059669;          /* emerald-600 */
  --color-warning: #d97706;          /* amber-600 */
  --color-error: #dc2626;            /* red-600 */

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --section-padding: 100px 0;
  --container-max: 1140px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

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

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

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

img { max-width: 100%; display: block; }
ul { list-style: none; }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Utility --- */
.accent-text {
  color: var(--color-accent);
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition-base);
  background: rgba(249, 250, 251, 0.8);
  backdrop-filter: blur(12px);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
  padding: 12px 0;
}

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

.navbar__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

.navbar__logo-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  object-fit: contain;
}

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

.navbar__link {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  transition: var(--transition-fast);
  font-weight: 500;
}

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

.navbar__cta {
  padding: 9px 22px;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: white;
  font-weight: 600;
  font-size: 0.85rem;
  transition: var(--transition-base);
  border: none;
  cursor: pointer;
}

.navbar__cta:hover {
  background: var(--color-accent-dark);
}

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

.navbar__hamburger span {
  width: 22px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: var(--transition-base);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  background: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
}

.hero__content {
  text-align: center;
  max-width: 780px;
  margin: 0 auto;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  background: var(--color-accent-light);
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 28px;
  animation: fadeInUp 0.5s ease forwards;
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

.hero__title {
  font-size: clamp(2.5rem, 5.5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  color: var(--color-text-primary);
  animation: fadeInUp 0.5s ease 0.08s forwards;
  opacity: 0;
}

.hero__title span {
  display: block;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: var(--color-text-secondary);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
  animation: fadeInUp 0.5s ease 0.16s forwards;
  opacity: 0;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  animation: fadeInUp 0.5s ease 0.24s forwards;
  opacity: 0;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.92rem;
  transition: var(--transition-base);
  cursor: pointer;
  border: none;
  font-family: var(--font-sans);
}

.btn--primary {
  background: var(--color-accent);
  color: white;
}

.btn--primary:hover {
  background: var(--color-accent-dark);
}

.btn--secondary {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
}

.btn--secondary:hover {
  background: var(--color-bg-secondary);
  border-color: var(--color-border-hover);
}

/* --- Hero App Preview --- */
.hero__visual {
  margin-top: 64px;
  position: relative;
  animation: fadeInUp 0.6s ease 0.32s forwards;
  opacity: 0;
}

.hero__screenshots {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.hero__screenshot {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

/* ============================================
   SECTION SHARED
   ============================================ */
.section {
  padding: var(--section-padding);
}

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

.section__header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 64px;
}

.section__eyebrow {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 12px;
}

.section__title {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 14px;
  color: var(--color-text-primary);
}

.section__desc {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================
   FEATURES
   ============================================ */
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: var(--transition-base);
}

.feature-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.feature-card__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 18px;
  background: var(--color-accent-light);
}

.feature-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text-primary);
}

.feature-card__desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* ============================================
   HOW IT WORKS
   ============================================ */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 32px;
  left: calc(33.33% / 2 + 32px);
  right: calc(33.33% / 2 + 32px);
  height: 1px;
  background: var(--color-border);
}

.step {
  text-align: center;
  position: relative;
}

.step__number {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-bg-white);
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.3rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--color-accent);
  transition: var(--transition-base);
}

.step:hover .step__number {
  border-color: var(--color-accent);
  background: var(--color-accent-light);
}

.step__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text-primary);
}

.step__desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* ============================================
   PRODUCT SHOWCASE
   ============================================ */
.showcase__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.showcase__text-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.showcase__item {
  display: flex;
  gap: 14px;
  padding: 16px;
  border-radius: var(--radius-sm);
  transition: var(--transition-base);
}

.showcase__item:hover {
  background: var(--color-bg-secondary);
}

.showcase__item-icon {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  background: var(--color-accent-light);
}

.showcase__item-title {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 3px;
  color: var(--color-text-primary);
}

.showcase__item-desc {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.showcase__visual {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.showcase__screenshot {
  width: 100%;
  height: auto;
  display: block;
}

/* ============================================
   STATS
   ============================================ */
.stats {
  padding: 72px 0;
  background: var(--color-bg-white);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat__value {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
  margin-bottom: 4px;
  color: var(--color-accent);
}

.stat__label {
  font-size: 0.86rem;
  color: var(--color-text-secondary);
}

/* ============================================
   RESEARCH SECTION
   ============================================ */
.research__content {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 56px;
  max-width: 720px;
}

.research__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--color-accent-light);
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  color: var(--color-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.research__title {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  color: var(--color-text-primary);
}

.research__desc {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.research__highlights {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.research__highlight {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.research__highlight-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #d1fae5;
  color: var(--color-success);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  flex-shrink: 0;
  font-weight: 700;
}



/* ============================================
   CTA SECTION
   ============================================ */
.cta {
  padding: 120px 0;
  text-align: center;
  background: var(--color-bg-white);
  border-top: 1px solid var(--color-border);
}

.cta__content {
  max-width: 620px;
  margin: 0 auto;
}

.cta__title {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--color-text-primary);
}

.cta__desc {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
}

.cta__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 56px 0 36px;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-primary);
}

.footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer__brand-desc {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-top: 14px;
  max-width: 300px;
}

.footer__column-title {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  font-weight: 600;
  margin-bottom: 16px;
}

.footer__column-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__column-link {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  transition: var(--transition-fast);
}

.footer__column-link:hover {
  color: var(--color-text-primary);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
}

.footer__copyright {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.footer__socials {
  display: flex;
  gap: 12px;
}

.footer__social {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  transition: var(--transition-base);
}

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

/* ============================================
   CONTACT FORM MODAL
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(16px);
  transition: transform 0.25s ease;
}

.modal-overlay.active .modal {
  transform: translateY(0);
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 28px 0;
}

.modal__title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.modal__close {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg-white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  transition: var(--transition-fast);
}

.modal__close:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

.modal__desc {
  padding: 8px 28px 0;
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.modal__form {
  padding: 24px 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  color: var(--color-text-primary);
  background: var(--color-bg-white);
  transition: var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form-submit {
  padding: 12px 24px;
  background: var(--color-accent);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: var(--transition-base);
  margin-top: 4px;
}

.form-submit:hover {
  background: var(--color-accent-dark);
}

.form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-success {
  text-align: center;
  padding: 48px 28px;
}

.form-success__icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #d1fae5;
  color: var(--color-success);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin: 0 auto 16px;
}

.form-success__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-text-primary);
}

.form-success__desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll-triggered */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .features__grid { grid-template-columns: repeat(2, 1fr); }
  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: 36px; }
  .research__content { padding: 36px; }
  .showcase__content { grid-template-columns: 1fr; gap: 36px; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .app-mockup { flex-direction: column; max-width: 400px; margin: 0 auto; }
  .app-mockup__sidebar { width: 100%; }
}

@media (max-width: 768px) {
  :root { --section-padding: 72px 0; }

  .navbar__links { display: none; }
  .navbar__hamburger { display: flex; }

  .navbar__links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    padding: 20px;
    border-bottom: 1px solid var(--color-border);
    gap: 14px;
  }

  .hero__title { font-size: 2.2rem; }
  .hero__actions { flex-direction: column; }
  .features__grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; gap: 28px; }
  .steps::before { display: none; }
  .stats__grid { grid-template-columns: 1fr 1fr; }
  .footer__top { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: 14px; }

  .hero__screenshots { grid-template-columns: 1fr; gap: 24px; }

  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero__title { font-size: 1.8rem; }
  .stats__grid { grid-template-columns: 1fr; }
  .cta__actions { flex-direction: column; }
}