/* ViewTeller — shared stylesheet */

:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-accent: #0ea5a4;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-text: #0f172a;
  --color-text-muted: #475569;
  --color-border: #e2e8f0;

  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.12);

  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  --container-width: 1120px;
  --container-width-narrow: 760px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

ul,
ol {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-sm);
}

.container--narrow {
  max-width: var(--container-width-narrow);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn:hover {
  text-decoration: none;
}

.btn--primary {
  background: var(--color-primary);
  color: #ffffff;
}

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

.btn--secondary {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

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

.btn--on-dark {
  background: #ffffff;
  color: var(--color-primary-dark);
}

.btn--on-dark:hover {
  background: var(--color-bg-alt);
}

.btn--block {
  width: 100%;
}

/* Site header / nav */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-sm);
  gap: var(--space-sm);
}

.nav__brand {
  display: inline-flex;
  align-items: center;
}

.nav__brand:hover {
  text-decoration: none;
}

.nav__logo {
  height: 1.375rem;
  width: auto;
}

.nav__toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
}

.nav__toggle-bar {
  width: 1.25rem;
  height: 2px;
  margin-inline: auto;
  background: var(--color-text);
}

.nav__panel {
  display: none;
  width: 100%;
}

.nav__panel.is-open {
  display: block;
}

.nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding-block: var(--space-sm);
}

.nav__link {
  color: var(--color-text);
  font-weight: 500;
}

.nav__cta {
  display: none;
}

@media (min-width: 768px) {
  .nav__toggle {
    display: none;
  }

  .nav__panel {
    display: flex;
    align-items: center;
    width: auto;
    gap: var(--space-lg);
  }

  .nav__list {
    flex-direction: row;
    padding-block: 0;
  }

  .nav__cta {
    display: inline-flex;
  }
}

/* Hero */

.hero {
  padding-block: var(--space-2xl) var(--space-xl);
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
  text-align: center;
}

.hero__title {
  font-size: clamp(1.9rem, 4vw + 1rem, 3.25rem);
  line-height: 1.15;
  max-width: 18ch;
  margin-inline: auto;
}

.hero__subtitle {
  margin-top: var(--space-md);
  max-width: 60ch;
  margin-inline: auto;
  font-size: 1.15rem;
  color: var(--color-text-muted);
}

.hero__actions {
  margin-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

@media (min-width: 640px) {
  .hero__actions {
    flex-direction: row;
    justify-content: center;
  }
}

/* Coming soon */

.coming-soon {
  min-height: calc(100vh - 4.5rem - 12rem);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.coming-soon__title {
  font-size: clamp(2rem, 5vw + 1rem, 4rem);
  color: var(--color-text);
}

/* Sections */

.section {
  padding-block: var(--space-2xl);
}

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

.section__header {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-xl);
}

.section__title {
  font-size: clamp(1.5rem, 2vw + 1rem, 2.25rem);
}

.section__subtitle {
  margin-top: var(--space-sm);
  color: var(--color-text-muted);
}

/* Feature cards */

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

@media (min-width: 640px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.feature-card {
  padding: var(--space-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.feature-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: #ffffff;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.feature-card__title {
  font-size: 1.1rem;
  margin-bottom: var(--space-xs);
}

.feature-card__text {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* Steps */

.steps {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
  counter-reset: step;
}

@media (min-width: 768px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.steps__item {
  position: relative;
  padding-top: var(--space-lg);
}

.steps__item::before {
  counter-increment: step;
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--color-primary);
  color: #ffffff;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.steps__title {
  font-size: 1.1rem;
  margin-bottom: var(--space-xs);
}

.steps__text {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* CTA banner */

.cta-banner {
  padding-block: var(--space-xl);
  background: var(--color-primary);
  color: #ffffff;
  text-align: center;
}

.cta-banner__title {
  font-size: clamp(1.5rem, 2vw + 1rem, 2rem);
}

.cta-banner__text {
  margin-top: var(--space-sm);
  color: rgba(255, 255, 255, 0.85);
  max-width: 50ch;
  margin-inline: auto;
}

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

/* Footer */

.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-xl) var(--space-lg);
}

.footer__grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .footer__grid {
    grid-template-columns: 2fr 1fr;
  }
}

.footer__brand {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.footer__blurb {
  color: var(--color-text-muted);
  max-width: 40ch;
  font-size: 0.95rem;
}

.footer__heading {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer__link {
  color: var(--color-text);
  font-size: 0.95rem;
}

.footer__bottom {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* Legal pages (terms / privacy) */

.legal-page {
  padding-block: var(--space-xl) var(--space-2xl);
}

.legal-page__updated {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-top: var(--space-xs);
  margin-bottom: var(--space-lg);
}

.legal-page__intro {
  margin-bottom: var(--space-lg);
  color: var(--color-text-muted);
}

.legal-page__toc {
  padding: var(--space-md);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-xl);
}

.legal-page__toc-heading {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.legal-page__toc-list {
  display: grid;
  gap: var(--space-2xs) var(--space-md);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .legal-page__toc-list {
    grid-template-columns: 1fr 1fr;
  }
}

.legal-section {
  margin-bottom: var(--space-xl);
  scroll-margin-top: 5rem;
}

.legal-section__title {
  font-size: 1.35rem;
  margin-bottom: var(--space-sm);
}

.legal-section__subtitle {
  font-size: 1.05rem;
  margin-top: var(--space-md);
  margin-bottom: var(--space-xs);
}

.legal-section p {
  margin-bottom: var(--space-sm);
  color: var(--color-text-muted);
}

.legal-section ul {
  margin-bottom: var(--space-sm);
  padding-left: 1.25rem;
  color: var(--color-text-muted);
}

.legal-section li {
  list-style: disc;
  margin-bottom: var(--space-2xs);
}

/* Contact page */

.contact-layout {
  display: grid;
  gap: var(--space-xl);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .contact-layout {
    grid-template-columns: 1fr 1.4fr;
  }
}

.contact-info__title {
  font-size: 1.2rem;
  margin-bottom: var(--space-sm);
}

.contact-info__text {
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

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

.contact-info__label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

.contact-info__value {
  font-weight: 600;
}

.contact-form {
  padding: var(--space-lg);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group__label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: var(--space-2xs);
}

.form-group__input,
.form-group__textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font: inherit;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.form-group__input:focus,
.form-group__textarea:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

.form-group__textarea {
  resize: vertical;
  min-height: 8rem;
}

.form-success {
  display: none;
  padding: var(--space-md);
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  border-radius: var(--radius-md);
  color: #065f46;
}

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

.contact-form.is-submitted form {
  display: none;
}