/* ============================================================
   Sockaway — marketing site styles
   Design system: design-system/sockaway/MASTER.md
   ============================================================ */

/* ---------- 1. Design tokens (from MASTER.md) ---------- */
:root {
  --color-primary:    #18181B;
  --color-secondary:  #3F3F46;
  --color-cta:        #2563EB;
  --color-background: #FAFAFA;
  --color-surface:    #FFFFFF;
  --color-text:       #09090B;
  --color-divider:    #E2E8F0;

  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.10);
  --shadow-xl: 0 20px 25px rgba(0,0,0,0.15);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;

  --motion-fast: 200ms;
  --motion-med:  280ms;
  --ease:        cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 2. Tailwind extension via runtime config ---------- */
/* Loaded inline so the CDN script picks it up before utilities resolve. */
/* (No build step — see <script> in index.html.) */

/* ---------- 3. Base ---------- */
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  font-family: 'Source Sans 3', system-ui, -apple-system, Segoe UI, sans-serif;
  background-color: var(--color-background);
  color: var(--color-text);
  font-size: 17px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Hide horizontal scroll on mobile no matter what */
html, body { overflow-x: hidden; }

/* ---------- 3a. Background dot-grid texture ---------- */
/* A barely-visible 24px dot grid on the FAFAFA background.
   Pure CSS radial-gradient — no extra request. Behind everything. */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: radial-gradient(rgba(9, 9, 11, 0.05) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: 0 0;
  /* Soft fade at top/bottom so the texture never competes with content */
  -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 8%, #000 92%, transparent 100%);
          mask-image: linear-gradient(180deg, transparent 0, #000 8%, #000 92%, transparent 100%);
}

/* Color / font utilities (bg-bg, text-text, text-secondary, font-heading,
   font-body, border-text/10, etc.) are generated by the Tailwind CDN via the
   extended config in <head>. We don't redeclare them here to avoid overriding
   Tailwind's opacity modifiers and responsive variants. */

/* ---------- 4. Layout ---------- */
.section-pad {
  padding-left: clamp(1.25rem, 4vw, 3rem);
  padding-right: clamp(1.25rem, 4vw, 3rem);
}

/* ---------- 4a. Reveal on scroll ---------- */
/* Each `.reveal` section starts slightly down + transparent, and fades up
   when the IntersectionObserver in index.html toggles `.is-visible`.
   Reduced-motion users get the visible state immediately, no transform. */
.reveal {
  opacity: 0;
  transform: translate3d(0, 16px, 0);
  transition: opacity 600ms var(--ease), transform 600ms var(--ease);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- 5. Display typography (Exaggerated Minimalism) ---------- */
/* Hero is intentionally larger than section heads to create dramatic rhythm. */
.display {
  font-size: clamp(2.75rem, 6.5vw, 7.5rem);
  letter-spacing: -0.04em;
  line-height: 0.95;
}
.display-md {
  font-size: clamp(1.875rem, 4.5vw, 4.5rem);
  letter-spacing: -0.03em;
  line-height: 1.05;
}

/* ---------- 5a. Big stat row ---------- */
.stat__num {
  font-family: 'Lexend', sans-serif;
  font-weight: 900;
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--color-text);
}
.stat__label {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
  color: var(--color-secondary);
}

/* ---------- 6. Buttons ---------- */
.btn-primary {
  background-color: var(--color-cta);
  color: #ffffff;
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--motion-fast) ease,
              transform var(--motion-fast) ease,
              box-shadow var(--motion-fast) ease;
  box-shadow: 0 1px 0 rgba(0,0,0,0.04);
}
.btn-primary:hover {
  background-color: #1d4fd8;
  box-shadow: var(--shadow-md);
}
.btn-primary:active {
  background-color: #1a46c2;
}
.btn-primary:focus-visible {
  outline: 2px solid var(--color-text);
  outline-offset: 3px;
}

.focus-ring:focus-visible {
  outline: 2px solid var(--color-text);
  outline-offset: 3px;
  border-radius: 9999px;
}

/* ---------- 7. Hero phone mockup ---------- */
.phone {
  width: 100%;
  max-width: 320px;
  filter: drop-shadow(0 30px 40px rgba(9, 9, 11, 0.18))
          drop-shadow(0 8px 14px rgba(9, 9, 11, 0.08));
  transition: transform 400ms var(--ease);
}
.phone__svg {
  width: 100%;
  height: auto;
  display: block;
}
@media (prefers-reduced-motion: no-preference) {
  /* The hero card lifts very slightly when in view. Subtle, not gimmicky. */
  .reveal.is-visible .phone {
    transform: translateY(-4px);
  }
}

/* ---------- 8. Comparison cards (wedge section) ---------- */
.compare-card {
  background: var(--color-surface);
  border: 1px solid rgba(9, 9, 11, 0.08);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
}
.compare-card--muted {
  background: #F4F4F5;
}
.compare-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.compare-card__label {
  font-family: 'Lexend', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  color: var(--color-text);
}
.compare-card__chip {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  color: var(--color-secondary);
  border: 1px solid rgba(9, 9, 11, 0.15);
  border-radius: 999px;
  padding: 0.25rem 0.625rem;
}
.compare-card__chip--cta {
  color: var(--color-cta);
  border-color: rgba(37, 99, 235, 0.4);
}
.compare-card__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 1rem 0;
  border-top: 1px solid rgba(9, 9, 11, 0.08);
  font-size: 1.05rem;
}
.compare-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(9, 9, 11, 0.08);
}
.compare-card__list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.625rem 0;
  border-bottom: 1px solid rgba(9, 9, 11, 0.06);
  font-size: 1rem;
  color: var(--color-text);
}
.compare-card__list-foot {
  color: var(--color-secondary) !important;
  font-size: 0.95rem !important;
}
.compare-card__list-total {
  font-family: 'Lexend', sans-serif;
  font-weight: 700;
  border-bottom: 0 !important;
  padding-top: 0.875rem !important;
}
.compare-card__caption {
  margin-top: 0.5rem;
  color: var(--color-secondary);
  font-size: 0.95rem;
}

/* ---------- 9. Capture-source cards ---------- */
.capture-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid rgba(9, 9, 11, 0.08);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  cursor: default;
  /* No transform on the card — only shadow + border lift, so layout never shifts. */
  transition: box-shadow var(--motion-fast) var(--ease),
              border-color var(--motion-fast) var(--ease);
}
.capture-card:hover,
.capture-card:focus-within {
  box-shadow: var(--shadow-lg);
  border-color: rgba(9, 9, 11, 0.16);
}
.capture-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 12px;
  background: var(--color-text);
  color: var(--color-background);
  margin-bottom: 0.25rem;
  /* Transform on the icon, NOT the card → no layout shift. */
  transition: transform var(--motion-fast) var(--ease),
              background-color var(--motion-fast) var(--ease);
  will-change: transform;
}
.capture-card:hover .capture-card__icon,
.capture-card:focus-within .capture-card__icon {
  transform: scale(1.08);
}
.capture-card__icon svg { width: 1.4rem; height: 1.4rem; }
.capture-card__title {
  font-family: 'Lexend', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.capture-card__body {
  color: var(--color-secondary);
  font-size: 0.98rem;
  line-height: 1.55;
}
.capture-card__badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #ffffff;
  background: var(--color-cta);
  border-radius: 999px;
  padding: 0.25rem 0.55rem;
}
.capture-card--premium {
  border-color: rgba(37, 99, 235, 0.35);
}

/* ---------- 10. Pricing cards ---------- */
.price-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid rgba(9, 9, 11, 0.08);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: box-shadow var(--motion-fast) var(--ease),
              border-color var(--motion-fast) var(--ease);
}
.price-card:hover {
  box-shadow: var(--shadow-md);
}
/* Recommended plan: thin CTA-blue ring. No fill change, no badge graphic. */
.price-card--feature {
  border-color: var(--color-cta);
  box-shadow: 0 0 0 1px var(--color-cta) inset, var(--shadow-sm);
}
.price-card--feature:hover {
  box-shadow: 0 0 0 1px var(--color-cta) inset, var(--shadow-lg);
}

.price-card__flag {
  position: absolute;
  top: -0.75rem;
  left: 2rem;
  background: var(--color-cta);
  color: #ffffff;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
}
.price-card__name {
  font-family: 'Lexend', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.price-card__sub {
  font-size: 0.9rem;
  color: var(--color-secondary);
  margin-top: 0.125rem;
}
.price-card__price {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.price-card__amount {
  font-family: 'Lexend', sans-serif;
  font-size: clamp(2.5rem, 5vw, 3.25rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--color-text);
  line-height: 1;
}
.price-card__period {
  font-size: 0.95rem;
  color: var(--color-secondary);
}
.price-card__altprice {
  font-size: 0.9rem;
  color: var(--color-secondary);
  margin-top: -0.5rem;
}
.price-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}
.price-card__list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.97rem;
  color: var(--color-text);
  line-height: 1.5;
}
.price-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 999px;
  background: var(--color-text);
}
/* Recommended plan: bullet dots in CTA blue for visual reinforcement. */
.price-card--feature .price-card__list li::before {
  background: var(--color-cta);
}

/* -------------------------------------------------------------------------
 * Pricing toggle (Monthly / Yearly)
 * ------------------------------------------------------------------------- */
.price-toggle {
  display: inline-flex;
  gap: 0;
  background: var(--color-background);
  border: 1px solid color-mix(in srgb, var(--color-text) 10%, transparent);
  border-radius: 999px;
  padding: 4px;
  margin: 0.5rem 0 1rem;
  align-self: flex-start;
}
.price-toggle__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  font-family: 'Source Sans 3', system-ui, sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-secondary);
  background: transparent;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}
.price-toggle__btn:hover {
  color: var(--color-text);
}
.price-card[data-active="yearly"] .price-toggle__btn[data-plan="yearly"],
.price-card[data-active="monthly"] .price-toggle__btn[data-plan="monthly"] {
  background: var(--color-text);
  color: var(--color-background);
}
.price-toggle__save {
  font-size: 0.65rem;
  font-weight: 700;
  background: var(--color-cta);
  color: #ffffff;
  padding: 2px 6px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.2;
}
.price-card[data-active="yearly"] .price-toggle__btn[data-plan="yearly"] .price-toggle__save {
  background: #ffffff;
  color: var(--color-cta);
}

/* Show/hide price variants based on the card's data-active attribute. */
.price-card[data-active="yearly"]  [data-show="monthly"],
.price-card[data-active="monthly"] [data-show="yearly"] {
  display: none;
}

/* ---------- 11. Footer ---------- */
.footer-col__title {
  font-family: 'Lexend', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: 1rem;
}
.footer-col__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}
.footer-link {
  color: var(--color-secondary);
  cursor: pointer;
  font-size: 0.95rem;
  transition: color var(--motion-fast) ease;
}
.footer-link:hover { color: var(--color-text); }
.footer-link:focus-visible {
  outline: 2px solid var(--color-text);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Social icons — square, monochrome, hover lifts to CTA blue. */
.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 10px;
  border: 1px solid rgba(9, 9, 11, 0.12);
  color: var(--color-text);
  cursor: pointer;
  transition: color var(--motion-fast) ease,
              border-color var(--motion-fast) ease,
              background-color var(--motion-fast) ease;
}
.social-link svg { width: 1rem; height: 1rem; }
.social-link:hover {
  color: #ffffff;
  background-color: var(--color-cta);
  border-color: var(--color-cta);
}
.social-link:focus-visible {
  outline: 2px solid var(--color-text);
  outline-offset: 3px;
}
