/* EmailCleaner — design tokens from docs/DESIGN.md */

:root {
  --color-primary: #000000;
  --color-on-primary: #ffffff;
  --color-ink: #030303;
  --color-ink-soft: #1a1a1a;
  --color-graphite: #404040;
  --color-slate: #676f7b;
  --color-slate-soft: #727a85;
  --color-mute: #6b7280;
  --color-stone: #939393;
  --color-ash: #999999;
  --color-hairline: #e7eaf0;
  --color-hairline-soft: #c9ccd1;
  --color-surface-cool: #d0d4d4;
  --color-canvas: #ffffff;
  --color-canvas-warm: #fefefe;
  --color-scrim: #1a1a1a;
  --color-footer: #030303;
  --color-page-bg: #f7f8fa;

  --font-family: 'Inter', system-ui, -apple-system, sans-serif;

  --spacing-xxs: 4px;
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  --spacing-section: 64px;
  --spacing-section-lg: 96px;

  --rounded-none: 0;
  --rounded-xs: 4px;
  --rounded-sm: 6px;
  --rounded-md: 8px;
  --rounded-lg: 16px;
  --rounded-full: 9999px;

  --container-max: 1120px;
  --nav-height: 64px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-graphite);
  background: var(--color-page-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* ── Layout ── */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-section) 0;
}

.section--tight {
  padding: var(--spacing-xxl) 0;
}

.section-header {
  max-width: 640px;
  margin-bottom: var(--spacing-xxl);
}

.section-header--center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.section-cta {
  text-align: center;
  margin-top: var(--spacing-xxl);
}

/* ── Typography ── */

.eyebrow {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.43;
  letter-spacing: 0.35px;
  text-transform: uppercase;
  color: var(--color-slate);
  margin-bottom: var(--spacing-md);
}

.heading-md {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.9px;
  color: var(--color-ink);
}

.heading-sm {
  font-size: 24px;
  font-weight: 400;
  line-height: 1;
  color: var(--color-ink);
}

.body-text {
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-graphite);
  margin-top: var(--spacing-md);
}

.section-header .body-text {
  margin-top: var(--spacing-md);
}

/* ── Buttons ── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  font-family: var(--font-family);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.43;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s ease;
  white-space: nowrap;
}

.btn:hover {
  opacity: 0.85;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-radius: var(--rounded-full);
  padding: var(--spacing-sm) var(--spacing-lg);
  height: 40px;
}

.btn-ghost {
  background: var(--color-canvas);
  color: var(--color-ink);
  border: 1px solid var(--color-ink);
  border-radius: var(--rounded-full);
  padding: var(--spacing-sm) var(--spacing-lg);
  height: 40px;
}

.btn-lg {
  height: 48px;
  padding: var(--spacing-sm) var(--spacing-xl);
  font-size: 15px;
}

/* ── Navigation ── */

.nav-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-canvas);
  height: var(--nav-height);
  border-bottom: 1px solid var(--color-hairline);
}

.nav-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-bar__brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-ink);
}

.nav-bar__logo {
  flex-shrink: 0;
}

.nav-bar__wordmark {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.3px;
  color: var(--color-ink-soft);
}

.nav-bar__wordmark-accent {
  color: var(--color-ink);
}

.nav-bar__menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav-link {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.43;
  color: var(--color-ink-soft);
  padding: var(--spacing-xs);
  transition: color 0.15s ease;
}

.nav-link:hover {
  color: var(--color-ink);
}

.nav-bar__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-bar__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.nav-bar__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-bar__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-bar__toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-bar__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Hero ── */

.hero {
  text-align: center;
  padding-top: var(--spacing-section-lg);
  padding-bottom: var(--spacing-section);
}

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

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-full);
  padding: var(--spacing-xs) var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.hero__stars {
  color: var(--color-ink);
  font-size: 13px;
  letter-spacing: 1px;
}

.hero__badge-text {
  font-size: 13px;
  font-weight: 400;
  color: var(--color-slate);
}

.hero__title {
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -1.4px;
  color: var(--color-ink);
  max-width: 720px;
  margin-bottom: var(--spacing-lg);
}

.hero__title em {
  font-style: normal;
  font-weight: 600;
  color: var(--color-ink);
  text-decoration: underline;
  text-decoration-color: var(--color-hairline-soft);
  text-underline-offset: 6px;
  text-decoration-thickness: 3px;
}

.hero__subtitle {
  font-size: clamp(16px, 2.5vw, 20px);
  font-weight: 400;
  line-height: 1.4;
  color: var(--color-slate);
  max-width: 520px;
  margin-bottom: var(--spacing-xl);
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xxl);
  margin-bottom: var(--spacing-xl);
}

.hero__stat {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 14px;
  color: var(--color-slate);
}

.hero__stat strong {
  color: var(--color-ink);
  font-weight: 600;
}

.hero__stat-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-slate);
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-hairline);
  width: 100%;
  max-width: 640px;
}

.hero__trust li {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 13px;
  color: var(--color-stone);
}

.hero__trust svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ── How It Works ── */

.how-it-works {
  text-align: center;
  background: var(--color-canvas);
  border-top: 1px solid var(--color-hairline);
  border-bottom: 1px solid var(--color-hairline);
}

.how-it-works__inner {
  max-width: 560px;
  margin: 0 auto;
}

.how-it-works .heading-md {
  margin-top: var(--spacing-sm);
}

/* ── Features ── */

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

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

.feature-card {
  text-align: center;
  padding: var(--spacing-lg);
}

.feature-card__icon {
  font-size: 36px;
  line-height: 1;
  margin-bottom: var(--spacing-md);
}

.feature-card__title {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-ink);
  margin-bottom: var(--spacing-sm);
}

.feature-card__text {
  font-size: 15px;
  line-height: 1.5;
  color: var(--color-slate);
}

/* ── Testimonials ── */

.testimonials {
  background: var(--color-canvas);
  border-top: 1px solid var(--color-hairline);
}

.testimonials__grid {
  columns: 3;
  column-gap: var(--spacing-lg);
}

.testimonial-card {
  break-inside: avoid;
  background: var(--color-scrim);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  border: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.testimonial-card--featured {
  border-color: var(--color-stone);
}

.testimonial-card__header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.testimonial-card__avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--rounded-full);
  background: var(--color-graphite);
  color: var(--color-on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  flex-shrink: 0;
}

.testimonial-card__name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-on-primary);
  margin-bottom: 2px;
}

.testimonial-card__stars {
  color: var(--color-stone);
  font-size: 12px;
  letter-spacing: 1px;
}

.testimonial-card__text {
  font-size: 15px;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.85);
}

/* ── Mid CTA ── */

.mid-cta {
  text-align: center;
  background: var(--color-page-bg);
}

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

.mid-cta .body-text {
  margin-bottom: var(--spacing-xl);
}

/* ── Privacy ── */

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

.privacy-card {
  background: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-xxl);
  max-width: 960px;
  margin: 0 auto;
}

.privacy-card__header {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
}

.privacy-card__body {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--spacing-xxl);
  align-items: center;
  margin-bottom: var(--spacing-xxl);
}

.privacy-card__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.privacy-card__shield {
  width: 120px;
  height: 120px;
  color: var(--color-ink);
}

.privacy-card__shield svg {
  width: 100%;
  height: 100%;
}

.privacy-card__list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.privacy-card__list li {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
  font-size: 15px;
  line-height: 1.5;
  color: var(--color-graphite);
}

.privacy-card__list svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-ink);
  margin-top: 2px;
}

.privacy-card__list a {
  text-decoration: underline;
  text-underline-offset: 2px;
  color: var(--color-ink-soft);
}

.privacy-card__footer {
  display: flex;
  justify-content: flex-end;
}

/* ── FAQ ── */

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

.faq__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xxl) var(--spacing-xl);
}

.faq__question {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-ink);
  margin-bottom: var(--spacing-sm);
}

.faq__answer {
  font-size: 15px;
  line-height: 1.5;
  color: var(--color-slate);
}

.faq__answer a {
  text-decoration: underline;
  text-underline-offset: 2px;
  color: var(--color-ink-soft);
}

/* ── Final CTA ── */

.final-cta {
  text-align: center;
  background: var(--color-canvas);
  border-top: 1px solid var(--color-hairline);
  padding: var(--spacing-section-lg) 0;
}

.final-cta__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
  max-width: 560px;
  margin: 0 auto;
}

.final-cta__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}

.final-cta__logo {
  flex-shrink: 0;
}

.final-cta__wordmark {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.3px;
  color: var(--color-ink-soft);
}

/* ── Footer ── */

.footer {
  background: var(--color-footer);
  color: var(--color-on-primary);
  padding: var(--spacing-lg) 0;
  border-top: 1px solid var(--color-hairline);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer__copy {
  font-size: 14px;
  color: var(--color-stone);
}

.footer__brand {
  color: var(--color-on-primary);
  font-weight: 600;
}

.footer__brand-accent {
  color: var(--color-stone);
}

.footer__links {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-link {
  font-size: 14px;
  color: var(--color-on-primary);
  transition: opacity 0.15s ease;
}

.footer-link:hover {
  opacity: 0.7;
}

/* ── Responsive ── */

@media (max-width: 1024px) {
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonials__grid {
    columns: 2;
  }

  .privacy-card__body {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .privacy-card__list li {
    text-align: left;
  }

  .privacy-card__footer {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .nav-bar__menu {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-canvas);
    flex-direction: column;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-hairline);
    gap: var(--spacing-md);
  }

  .nav-bar__menu.is-open {
    display: flex;
  }

  .nav-bar__toggle {
    display: flex;
  }

  .nav-bar__actions .btn-primary {
    display: none;
  }

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

  .testimonials__grid {
    columns: 1;
  }

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

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }

  .footer__links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .btn-lg {
    width: 100%;
    max-width: 320px;
  }
}

@media (max-width: 480px) {
  .hero__stats {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
  }

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

  .privacy-card {
    padding: var(--spacing-lg);
  }
}