/* ==========================================================================
   footer.css — The Oceans Post site footer
   Light + dark theming via CSS custom properties.
   Everything is scoped under .site-footer so it cannot affect the rest of
   home.css. Change --ft-accent to reskin the whole block.
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. Reset guard — neutralises generic `footer { }` rules from other CSS
   -------------------------------------------------------------------------- */
footer.site-footer {
  margin: 0;
  padding: 0;
  text-align: left;
  background-image: none;
}

/* :where() keeps specificity at zero so component rules below always win */
.site-footer :where(h1, h2, h3, p, ul, ol, li, form, time) {
  margin: 0;
  padding: 0;
  text-align: left;
  list-style: none;
  font-size: inherit;
  font-weight: inherit;
  color: inherit;
}

/* --------------------------------------------------------------------------
   1. Tokens
   -------------------------------------------------------------------------- */
:root,
[data-theme='light'] {
  --ft-bg: #f2f5f7;
  --ft-bg-deep: #e7ecf0;
  --ft-surface: #ffffff;
  --ft-border: #cfd8de;
  --ft-divider: #dde4e9;
  --ft-text: #0f1418;
  --ft-text-muted: #5a656e;
  --ft-text-faint: #8c959d;
  --ft-accent: #0b5f8a;
  --ft-accent-soft: rgba(11, 95, 138, 0.09);
  --ft-accent-contrast: #ffffff;
  --ft-focus: #0b5f8a;
  --ft-wordmark: rgba(15, 20, 24, 0.06);
  --ft-glow: rgba(11, 95, 138, 0.08);
  --ft-shadow: 0 1px 2px rgba(15, 20, 24, 0.05), 0 10px 28px -14px rgba(15, 20, 24, 0.18);
  --ft-grain-opacity: 0.2;
}

[data-theme='dark'] {
  --ft-bg: #111417;
  --ft-bg-deep: #0a0c0e;
  --ft-surface: #1a1e23;
  --ft-border: #2e343b;
  --ft-divider: #23282e;
  --ft-text: #eef2f5;
  --ft-text-muted: #a0a8b0;
  --ft-text-faint: #737b83;
  --ft-accent: #57b3e0;
  --ft-accent-soft: rgba(87, 179, 224, 0.13);
  --ft-accent-contrast: #0b1115;
  --ft-focus: #57b3e0;
  --ft-wordmark: rgba(238, 242, 245, 0.05);
  --ft-glow: rgba(87, 179, 224, 0.12);
  --ft-shadow: 0 1px 2px rgba(0, 0, 0, 0.45), 0 14px 34px -16px rgba(0, 0, 0, 0.75);
  --ft-grain-opacity: 0.14;
}

/* Follow the OS when no data-theme attribute is set */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --ft-bg: #111417;
    --ft-bg-deep: #0a0c0e;
    --ft-surface: #1a1e23;
    --ft-border: #2e343b;
    --ft-divider: #23282e;
    --ft-text: #eef2f5;
    --ft-text-muted: #a0a8b0;
    --ft-text-faint: #737b83;
    --ft-accent: #57b3e0;
    --ft-accent-soft: rgba(87, 179, 224, 0.13);
    --ft-accent-contrast: #0b1115;
    --ft-focus: #57b3e0;
    --ft-wordmark: rgba(238, 242, 245, 0.05);
    --ft-glow: rgba(87, 179, 224, 0.12);
    --ft-shadow: 0 1px 2px rgba(0, 0, 0, 0.45), 0 14px 34px -16px rgba(0, 0, 0, 0.75);
    --ft-grain-opacity: 0.14;
  }
}

:root {
  --ft-font-display: 'Zodiak', 'Iowan Old Style', Georgia, serif;
  --ft-font-body: 'Satoshi', ui-sans-serif, system-ui, sans-serif;

  --ft-text-xs: clamp(0.75rem, 0.72rem + 0.15vw, 0.8125rem);
  --ft-text-sm: clamp(0.875rem, 0.84rem + 0.2vw, 0.9375rem);
  --ft-text-base: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  --ft-text-lg: clamp(1.125rem, 1.05rem + 0.4vw, 1.375rem);
  --ft-text-xl: clamp(1.75rem, 1.4rem + 1.6vw, 2.75rem);

  --ft-space-1: 0.25rem;
  --ft-space-2: 0.5rem;
  --ft-space-3: 0.75rem;
  --ft-space-4: 1rem;
  --ft-space-5: 1.25rem;
  --ft-space-6: 1.5rem;
  --ft-space-8: 2rem;
  --ft-space-10: 2.5rem;
  --ft-space-12: 3rem;
  --ft-space-16: 4rem;

  --ft-radius: 6px;
  --ft-radius-lg: 12px;
  --ft-max-width: 1180px;
  --ft-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* --------------------------------------------------------------------------
   2. Shell + decorative layers
   -------------------------------------------------------------------------- */
.site-footer {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: linear-gradient(180deg, var(--ft-bg) 0%, var(--ft-bg-deep) 100%);
  color: var(--ft-text);
  border-top: 1px solid var(--ft-border);
  font-family: var(--ft-font-body);
  font-size: var(--ft-text-sm);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* fine paper grain */
.site-footer::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: var(--ft-grain-opacity);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.45'/%3E%3C/svg%3E");
}

/* soft accent bloom behind the newsletter block */
.site-footer__glow {
  position: absolute;
  top: -22%;
  right: -8%;
  z-index: -1;
  width: min(46rem, 70%);
  aspect-ratio: 1;
  pointer-events: none;
  background: radial-gradient(circle at center, var(--ft-glow) 0%, transparent 68%);
}

.site-footer *,
.site-footer *::before,
.site-footer *::after {
  box-sizing: border-box;
}

.site-footer__inner {
  position: relative;
  max-width: var(--ft-max-width);
  margin-inline: auto;
  padding-inline: clamp(var(--ft-space-4), 4vw, var(--ft-space-12));
  padding-block: clamp(var(--ft-space-8), 4vw, var(--ft-space-12))
    clamp(var(--ft-space-6), 3vw, var(--ft-space-8));
}

.site-footer a {
  color: inherit;
  text-decoration: none;
}

.site-footer a:focus-visible,
.site-footer button:focus-visible,
.site-footer input:focus-visible {
  outline: 2px solid var(--ft-focus);
  outline-offset: 3px;
  border-radius: 3px;
}

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

/* --------------------------------------------------------------------------
   3. Rule with issue marker + back to top
   -------------------------------------------------------------------------- */
.footer-rule {
  display: flex;
  align-items: center;
  gap: var(--ft-space-4);
  padding-bottom: clamp(var(--ft-space-8), 4vw, var(--ft-space-12));
}

.footer-rule__label {
  flex: none;
  color: var(--ft-text-faint);
  font-size: var(--ft-text-xs);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.footer-rule__line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--ft-border), transparent);
}

.footer-top {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: var(--ft-space-2);
  padding: var(--ft-space-2) var(--ft-space-4);
  border: 1px solid var(--ft-border);
  border-radius: 999px;
  color: var(--ft-text-muted);
  font-size: var(--ft-text-xs);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color 0.25s var(--ft-ease), border-color 0.25s var(--ft-ease),
    background-color 0.25s var(--ft-ease);
}

.footer-top svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.25s var(--ft-ease);
}

.footer-top:hover {
  color: var(--ft-text);
  border-color: var(--ft-text-faint);
  background: var(--ft-accent-soft);
}

.footer-top:hover svg {
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   4. Masthead — brand + newsletter
   -------------------------------------------------------------------------- */
.footer-masthead {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(var(--ft-space-8), 5vw, var(--ft-space-16));
  align-items: start;
  padding-bottom: clamp(var(--ft-space-8), 4vw, var(--ft-space-12));
  border-bottom: 1px solid var(--ft-divider);
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--ft-space-3);
}

.footer-logo__mark {
  flex: none;
  color: var(--ft-accent);
  transition: transform 0.35s var(--ft-ease);
}

.footer-logo:hover .footer-logo__mark {
  transform: rotate(-6deg) scale(1.05);
}

.footer-logo__img {
  display: block;
  width: auto;
  height: clamp(2rem, 3vw, 2.5rem);
}

.footer-logo__word {
  font-family: var(--ft-font-display);
  font-size: var(--ft-text-lg);
  font-weight: 700;
  letter-spacing: -0.015em;
}

.footer-brand__tagline {
  margin: var(--ft-space-5) 0 0;
  max-width: 32ch;
  color: var(--ft-text-muted);
  font-size: var(--ft-text-base);
  line-height: 1.6;
}

.footer-brand__tagline em {
  display: block;
  margin-top: var(--ft-space-2);
  color: var(--ft-text-faint);
  font-family: var(--ft-font-display);
  font-size: var(--ft-text-sm);
  font-style: italic;
}

/* Brand badges */
.footer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ft-space-2);
  margin: var(--ft-space-5) 0 0;
  padding: 0;
  list-style: none;
}

.footer-badges li {
  padding: 0.3rem var(--ft-space-3);
  border: 1px solid var(--ft-border);
  border-radius: 999px;
  color: var(--ft-text-faint);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.footer-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--ft-space-2);
  margin-top: var(--ft-space-6);
  padding-bottom: 3px;
  border-bottom: 1px solid var(--ft-accent);
  color: var(--ft-accent);
  font-size: var(--ft-text-sm);
  font-weight: 500;
}

.footer-cta svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.25s var(--ft-ease);
}

.footer-cta:hover svg {
  transform: translateX(4px);
}

/* Newsletter card */
.footer-subscribe {
  margin: 0;
  padding: clamp(var(--ft-space-5), 2.5vw, var(--ft-space-8));
  background: var(--ft-surface);
  background: color-mix(in srgb, var(--ft-surface) 72%, transparent);
  border: 1px solid var(--ft-border);
  border-radius: var(--ft-radius-lg);
  box-shadow: var(--ft-shadow);
  backdrop-filter: blur(6px);
}

.footer-subscribe__title {
  margin: 0;
  font-family: var(--ft-font-display);
  font-size: var(--ft-text-xl);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.footer-subscribe__hint {
  margin: var(--ft-space-3) 0 var(--ft-space-5);
  color: var(--ft-text-muted);
  font-size: var(--ft-text-sm);
}

.footer-subscribe__row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ft-space-2);
}

.footer-subscribe__input {
  flex: 1 1 13rem;
  min-width: 0;
  padding: 0.72rem var(--ft-space-4);
  background: var(--ft-surface);
  border: 1px solid var(--ft-border);
  border-radius: var(--ft-radius);
  color: var(--ft-text);
  font: inherit;
  transition: border-color 0.2s var(--ft-ease), box-shadow 0.2s var(--ft-ease);
}

.footer-subscribe__input::placeholder {
  color: var(--ft-text-faint);
}

.footer-subscribe__input:hover {
  border-color: var(--ft-text-faint);
}

.footer-subscribe__input:focus {
  border-color: var(--ft-accent);
  box-shadow: 0 0 0 3px var(--ft-accent-soft);
  outline: none;
}

.footer-subscribe__button {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: var(--ft-space-2);
  padding: 0.72rem var(--ft-space-5);
  background: var(--ft-accent);
  border: 1px solid var(--ft-accent);
  border-radius: var(--ft-radius);
  color: var(--ft-accent-contrast);
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.2s var(--ft-ease), transform 0.2s var(--ft-ease);
}

.footer-subscribe__button svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.25s var(--ft-ease);
}

.footer-subscribe__button:hover {
  opacity: 0.9;
}

.footer-subscribe__button:hover svg {
  transform: translateX(3px);
}

.footer-subscribe__button:active {
  transform: translateY(1px);
}

.footer-subscribe__proof {
  display: flex;
  align-items: center;
  gap: var(--ft-space-2);
  flex-wrap: wrap;
  margin: var(--ft-space-5) 0 0;
  color: var(--ft-text-faint);
  font-size: var(--ft-text-xs);
}

.footer-subscribe__proof a {
  color: var(--ft-text-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-subscribe__proof a:hover {
  color: var(--ft-text);
}

.footer-avatars {
  display: inline-flex;
}

.footer-avatars__dot {
  display: grid;
  place-items: center;
  width: 1.4rem;
  height: 1.4rem;
  margin-right: -0.45rem;
  border-radius: 50%;
  border: 1.5px solid var(--ft-surface);
  background: var(--ft-accent-soft);
  color: var(--ft-accent);
  font-size: 0.6875rem;
  font-weight: 700;
  line-height: 1;
}

.footer-avatars__dot:last-child {
  margin-right: var(--ft-space-2);
}

/* --------------------------------------------------------------------------
   5. Link columns
   -------------------------------------------------------------------------- */
.footer-nav {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(var(--ft-space-6), 3vw, var(--ft-space-10));
  padding-block: clamp(var(--ft-space-8), 4vw, var(--ft-space-12));
}

.footer-col__title {
  margin: 0 0 var(--ft-space-5);
  padding-bottom: var(--ft-space-3);
  border-bottom: 1px solid var(--ft-divider);
  color: var(--ft-text-faint);
  font-size: var(--ft-text-xs);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.footer-list,
.footer-social {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--ft-space-3);
}

.footer-list a {
  display: inline-flex;
  align-items: baseline;
  gap: var(--ft-space-2);
  color: var(--ft-text-muted);
  transition: color 0.25s var(--ft-ease);
}

.footer-list a > span:first-child {
  position: relative;
}

.footer-list a > span:first-child::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.28s var(--ft-ease);
}

.footer-list a:hover {
  color: var(--ft-text);
}

.footer-list a:hover > span:first-child::after {
  transform: scaleX(1);
}

.footer-list__meta {
  color: var(--ft-text-faint);
  font-size: var(--ft-text-xs);
}

/* Social pills */
.footer-social {
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--ft-space-2);
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  gap: var(--ft-space-2);
  padding: var(--ft-space-2) var(--ft-space-3);
  background: color-mix(in srgb, var(--ft-surface) 55%, transparent);
  border: 1px solid var(--ft-border);
  border-radius: 999px;
  color: var(--ft-text-muted);
  font-size: var(--ft-text-xs);
  transition: color 0.25s var(--ft-ease), border-color 0.25s var(--ft-ease),
    background-color 0.25s var(--ft-ease), transform 0.25s var(--ft-ease);
}

.footer-social a:hover {
  color: var(--ft-text);
  border-color: var(--ft-accent);
  background: var(--ft-accent-soft);
  transform: translateY(-2px);
}

.footer-social svg {
  flex: none;
  color: var(--ft-accent);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* --------------------------------------------------------------------------
   6. Oversized wordmark
   color: var(--ft-wordmark);
   -------------------------------------------------------------------------- */
.footer-wordmark {
  font-family: var(--ft-font-display);
  font-size: clamp(1.9rem, 8.6vw, 7.5rem);
  font-weight: 700;
  line-height: 0.82;
  letter-spacing: -0.04em;
  color: #6B7280 !important;
  white-space: nowrap;
  user-select: none;
  padding-bottom: clamp(var(--ft-space-4), 2vw, var(--ft-space-8));
}

/* --------------------------------------------------------------------------
   7. Bottom bar
   -------------------------------------------------------------------------- */
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--ft-space-4);
  padding-top: var(--ft-space-6);
  border-top: 1px solid var(--ft-divider);
  color: var(--ft-text-faint);
  font-size: var(--ft-text-xs);
}

.footer-bottom__copy {
  margin: 0;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ft-space-1) var(--ft-space-6);
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-legal a {
  position: relative;
  color: var(--ft-text-muted);
  transition: color 0.25s var(--ft-ease);
}

.footer-legal a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.28s var(--ft-ease);
}

.footer-legal a:hover {
  color: var(--ft-text);
}

.footer-legal a:hover::after {
  transform: scaleX(1);
}

/* --------------------------------------------------------------------------
   8. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
  .footer-masthead {
    grid-template-columns: 1fr;
    gap: var(--ft-space-10);
  }

  .footer-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--ft-space-8) var(--ft-space-6);
  }

  .footer-col--wide {
    grid-column: 1 / -1;
  }
}

@media (max-width: 560px) {
  .footer-rule__label {
    font-size: 0.6875rem;
    letter-spacing: 0.1em;
  }

  .footer-top span {
    display: none;
  }

  .footer-top {
    padding: var(--ft-space-2);
  }

  .footer-nav {
    grid-template-columns: 1fr;
    gap: var(--ft-space-8);
  }

  .footer-subscribe__button {
    width: 100%;
    justify-content: center;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-footer *,
  .site-footer *::after {
    transition: none !important;
  }
}