/* Code Red Marketing Website - Main Stylesheet */

/* Import design tokens */
@import './tokens.css';

/* ============================================
   FONT FACE DECLARATIONS
   ============================================ */

@font-face {
  font-family: 'Inter';
  src: url('../assets/fonts/Inter/Inter.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Inter';
  src: url('../assets/fonts/Inter/Inter-Italic.ttf') format('truetype');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'Instrument Serif';
  src: url('../assets/fonts/InstrumentSerif/InstrumentSerif-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Instrument Serif';
  src: url('../assets/fonts/InstrumentSerif/InstrumentSerif-Italic.ttf') format('truetype');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

/* ============================================
   CSS RESET & BASE STYLES
   ============================================ */

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: var(--font-size-16);
  line-height: var(--line-height-24);
  color: var(--color-foreground-primary);
  background-color: var(--color-background-primary);
  min-height: 100vh;
}

img {
  max-width: 100%;
  height: auto;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-between-element-base);
  color: var(--color-foreground-primary);
}

h1 {
  font-size: var(--font-size-36);
  line-height: var(--line-height-44);
}

h2 {
  font-size: var(--font-size-24);
  line-height: var(--line-height-32);
}

h3 {
  font-size: var(--font-size-18);
  line-height: var(--line-height-28);
}

p {
  margin-bottom: var(--spacing-between-paragraph-base);
  color: var(--color-foreground-primary);
}

a {
  color: var(--color-foreground-primary);
  text-decoration: underline;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-foreground-secondary);
}

a:visited {
  color: var(--color-foreground-primary);
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

button:focus-visible,
.header__back-link:focus-visible,
.header__logo-link:focus-visible,
.app-store-badge:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Serif font for display text */
.display-serif {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
}

/* ============================================
   SKIP LINK (Accessibility)
   ============================================ */

.skip-link {
  position: absolute;
  top: -9999px;
  left: 0;
  background: var(--color-background-primary);
  color: var(--color-foreground-primary);
  padding: 8px 16px;
  text-decoration: none;
  z-index: 10000;
  border: 2px solid var(--color-accent);
  border-radius: 4px;
  clip-path: inset(50%);
  overflow: hidden;
}

.skip-link:focus {
  top: 0;
  clip-path: none;
  outline: none;
}

/* ============================================
   LAYOUT UTILITIES
   ============================================ */

.container {
  width: 100%;
  max-width: 1024px;
  margin: 0 auto;
  padding-left: var(--spacing-grid-margin-base);
  padding-right: var(--spacing-grid-margin-base);
}

.section {
  padding-top: var(--spacing-between-section-spacious);
  padding-bottom: var(--spacing-between-section-spacious);
}

/* ============================================
   HEADER
   ============================================ */

.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: var(--spacing-inset-compact) 0;
  background-color: var(--color-background-primary);
  border-bottom: var(--border-thin) solid var(--color-border-opaque);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.header__back-link {
  color: var(--color-foreground-primary);
  text-decoration: none;
  font-size: var(--font-size-16);
  line-height: var(--line-height-24);
  font-weight: 600;
  transition: color 0.2s ease;
  position: absolute;
  left: var(--spacing-grid-margin-base);
  top: 50%;
  transform: translateY(-50%);
}

.header__back-link:hover {
  color: var(--color-foreground-secondary);
}

.header__back-link-text--full {
  display: none;
}

.header__back-link-text--short {
  display: inline;
}

@media (min-width: 768px) {
  .header__back-link-text--full {
    display: inline;
  }
  
  .header__back-link-text--short {
    display: none;
  }
}

.header__logo {
  display: inline-block;
  max-width: 48px;
  height: auto;
  margin: 0 auto;
}

.header__logo-link {
  display: inline-block;
  text-decoration: none;
}


/* ============================================
   HERO SECTION
   ============================================ */

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

.hero .container {
  padding-bottom: 420px;
  background-image: url('../assets/images/app-screens.png');
  background-size: 690px auto;
  background-position: bottom;
  background-repeat: no-repeat;
  border-bottom: var(--border-thin) solid var(--color-border-opaque);
}

.hero__title {
  font-family: 'Instrument Serif', serif;
  font-size: var(--font-size-40);
  line-height: var(--line-height-48);
  font-weight: 400;
  color: var(--color-foreground-primary);
  margin-bottom: var(--spacing-between-element-base);
}

.hero__subtitle {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  font-size: var(--font-size-40);
  line-height: var(--line-height-48);
  color: var(--color-foreground-primary);
  margin-bottom: var(--spacing-between-group-base);
}

.hero__description {
  font-family: 'Inter', sans-serif;
  font-size: var(--font-size-16);
  line-height: var(--line-height-24);
  color: var(--color-foreground-primary);
  max-width: 600px;
  margin: 0 auto var(--spacing-between-group-spacious);
}

.hero__cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-between-action-base);
  margin-top: var(--spacing-between-group-spacious);
}

.app-store-badge {
  display: inline-block;
  height: 48px;
  width: auto;
  transition: opacity 0.2s ease;
}

.app-store-badge:hover {
  opacity: 0.8;
}

.app-store-badge img {
  height: 100%;
  width: auto;
  display: block;
  object-fit: contain;
}

/* ============================================
   FEATURE CARDS
   ============================================ */

.features {
  padding: var(--spacing-inset-spacious) 0;
}

.features .container {
  border-bottom: var(--border-thin) solid var(--color-border-opaque);
  padding-top: var(--spacing-inset-spacious);
  padding-bottom: var(--spacing-inset-spacious);
}

.features__title {
  text-align: center;
  margin-bottom: var(--spacing-between-section-spacious);
}

.features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-between-group-base);
  max-width: 1024px;
  margin: 0 auto;
  padding-bottom: var(--spacing-inset-spacious);
}

.feature-card {
  border: var(--border-thin) solid var(--color-border-opaque);
  border-radius: var(--radius-base);
  padding: var(--spacing-inset-base);
  text-align: left;
}

.feature-card__category {
  font-size: var(--font-size-14);
  color: var(--color-foreground-secondary);
  text-transform: none;
  letter-spacing: 0;
  font-weight: 600;
  line-height: var(--line-height-16);
  margin-bottom: var(--spacing-between-element-spacious);
}

.feature-card__title {
  font-size: var(--font-size-18);
  font-weight: 600;
  color: var(--color-foreground-primary);
  line-height: var(--line-height-28);
  margin-bottom: var(--spacing-between-element-spacious);
}

.feature-card__description {
  font-size: var(--font-size-16);
  line-height: var(--line-height-24);
  color: var(--color-foreground-secondary);
  margin-bottom: 0;
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta {
  text-align: center;
  padding: var(--spacing-inset-spacious) 0 var(--spacing-inset-base) 0;
}

.cta .container {
  border-bottom: var(--border-thin) solid var(--color-border-opaque);
  padding-top: var(--spacing-inset-spacious);
  padding-bottom: var(--spacing-inset-spacious);
}

.cta__title {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  font-size: var(--font-size-40);
  line-height: var(--line-height-48);
  font-weight: 400;
  color: var(--color-foreground-primary);
  margin-bottom: var(--spacing-between-element-spacious);
}

.cta__title em {
  font-style: italic;
  display: block;
}

.cta__description {
  font-size: var(--font-size-16);
  line-height: var(--line-height-24);
  color: var(--color-foreground-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-between-group-spacious);
}

.cta__badges {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-between-action-airy);
  margin-top: var(--spacing-between-group-spacious);
  margin-bottom: var(--spacing-between-group-spacious);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  padding: var(--spacing-inset-base) 0;
  text-align: center;
  font-size: var(--font-size-14);
  line-height: var(--line-height-16);
}

.footer__nav {
  margin-bottom: var(--spacing-between-group-base);
}

.footer__nav-link {
  color: var(--color-foreground-secondary);
  text-decoration: none;
  margin: 0 var(--spacing-between-element-base);
  transition: color 0.2s ease;
}

.footer__nav-link:hover {
  color: var(--color-foreground-secondary);
}

.footer__copyright {
  color: var(--color-foreground-tertiary);
}

/* ============================================
   SUPPORT PAGE SPECIFIC
   ============================================ */

.support-hero__title {
  font-size: var(--font-size-36);
  font-weight: 600;
  color: var(--color-foreground-primary);
  padding-top: var(--spacing-between-section-spacious);
  margin-bottom: var(--spacing-between-section-base);
  text-align: left;
}

.support-section {
  margin-bottom: var(--spacing-between-section-base);
}

.support-section:last-of-type {
  margin-bottom: 0;
}

main > .container {
  border-bottom: var(--border-thin) solid var(--color-border-opaque);
  padding-bottom: var(--spacing-inset-spacious);
}

.support-section__title {
  font-size: var(--font-size-24);
  font-weight: 600;
  color: var(--color-foreground-primary);
  margin-bottom: var(--spacing-between-group-base);
  text-align: left;
}

.support-section__content {
  color: var(--color-foreground-primary);
  text-align: left;
}

.support-section__content p {
  margin-bottom: var(--spacing-between-paragraph-base);
}

.support-section__email {
  color: var(--color-foreground-primary);
  text-decoration: underline;
  transition: color 0.2s ease;
}

.support-section__email:hover {
  color: var(--color-foreground-secondary);
}

.faq-list {
  list-style: none;
}

.faq-item {
  border: var(--border-thin) solid var(--color-border-opaque);
  border-radius: var(--radius-base);
  padding: var(--spacing-inset-base);
  margin-bottom: var(--spacing-between-group-base);
  text-align: left;
}

.faq-item__question {
  font-size: var(--font-size-18);
  font-weight: 600;
  color: var(--color-foreground-primary);
  margin-bottom: var(--spacing-between-element-base);
  line-height: var(--line-height-28);
}

.faq-item__answer {
  color: var(--color-foreground-primary);
  line-height: var(--line-height-24);
  margin-bottom: 0;
}

.delete-account-steps {
  list-style: decimal;
  margin-left: var(--spacing-inset-base);
  margin-top: var(--spacing-between-group-base);
  margin-bottom: var(--spacing-between-group-base);
  color: var(--color-foreground-primary);
  padding-left: var(--spacing-inset-base);
}

.delete-account-steps li {
  margin-bottom: var(--spacing-between-element-tight);
}

/* ============================================
   PRIVACY PAGE SPECIFIC
   ============================================ */

.privacy-section {
  margin-bottom: var(--spacing-between-section-base);
}

.privacy-section:last-of-type {
  margin-bottom: 0;
}

.privacy-section__title {
  font-size: var(--font-size-24);
  font-weight: 600;
  color: var(--color-foreground-primary);
  margin-bottom: var(--spacing-between-group-base);
  text-align: left;
}

.privacy-section__content {
  color: var(--color-foreground-secondary);
  line-height: var(--line-height-24);
  text-align: left;
}

.privacy-section__content p {
  margin-bottom: var(--spacing-between-paragraph-base);
}

.privacy-section__list {
  margin-left: var(--spacing-inset-base);
  margin-top: var(--spacing-between-group-base);
  margin-bottom: var(--spacing-between-group-base);
  color: var(--color-foreground-secondary);
  padding-left: var(--spacing-inset-base);
}

.privacy-section__list li {
  margin-bottom: var(--spacing-between-element-tight);
}

.privacy-section__last-updated {
  font-size: var(--font-size-14);
  color: var(--color-foreground-tertiary);
  margin-bottom: var(--spacing-between-section-base);
  text-align: left;
}

/* ============================================
   RESPONSIVE BREAKPOINTS
   ============================================ */

/* Tablet: 768px and up */
@media (min-width: 768px) {
  .header__logo {
    max-width: 48px;
  }

  .hero .container {
    padding-top: var(--spacing-between-section-airy);
    padding-bottom: 600px;
    background-size: 960px auto;
  }

  .hero__title,
  .hero__subtitle {
    font-size: var(--font-size-40);
    line-height: var(--line-height-48);
  }

  .hero__description {
    font-size: var(--font-size-16);
    line-height: var(--line-height-24);
  }

  .hero__cta {
    flex-direction: row;
    justify-content: center;
    gap: var(--spacing-between-action-airy);
  }

  .features__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .cta__badges {
    flex-direction: row;
    justify-content: center;
  }
}

/* Desktop: 1024px and up */
@media (min-width: 1024px) {
  .container {
    padding-left: var(--spacing-grid-margin-airy);
    padding-right: var(--spacing-grid-margin-airy);
  }

  .hero .container {
    padding-top: var(--spacing-between-section-spacious);
    padding-bottom: 700px;
    background-size: 1100px auto;
  }

  .hero__title,
  .hero__subtitle {
    font-size: var(--font-size-64);
    line-height: var(--line-height-80);
  }

  .hero__description {
    font-size: var(--font-size-18);
    line-height: var(--line-height-28);
  }

  .features__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-between-group-airy);
  }

  .feature-card {
    padding: var(--spacing-inset-airy);
  }
}