/* JustCall marketing — visual tokens mirror app/src/tailwind.css. */

/* Self-hosted Inter (synced from @fontsource-variable/inter). Same files are
   bundled by the SPA so the merged dist exposes a single canonical path. */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("/fonts/inter/inter-latin-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
    U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("/fonts/inter/inter-latin-ext-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020,
    U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("/fonts/inter/inter-cyrillic-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

:root {
  color-scheme: light dark;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --text-primary: #0f172a;
  --text-muted: #475569;
  --bg-page: radial-gradient(circle at top, #d0f2e0 0%, #edf4ff 54%, #f7fafc 100%);
  --bg-page-solid: #f8fafc;

  --home-backdrop:
    radial-gradient(circle at 16% 18%, #6ee7b766 0%, #6ee7b700 36%),
    radial-gradient(circle at 84% 14%, #7dd3fc5e 0%, #7dd3fc00 32%),
    radial-gradient(circle at 76% 74%, #facc153d 0%, #facc1500 28%),
    linear-gradient(135deg, #ffffff8c 0%, #e0f2fe42 42%, #f8fafc00 100%);
  --home-mesh-line: #ffffff42;
  --home-streak: linear-gradient(180deg, #34d39900 0%, #34d39942 24%, #7dd3fc61 58%, #ffffff00 100%);
  --home-orb-1: #34d39947;
  --home-orb-2: #38bdf840;
  --home-orb-3: #f59e0b30;

  --glass-from: #ffffffd4;
  --glass-to: #ffffffae;
  --glass-border: #94a3b847;
  --glass-shadow: #0f172a26;

  --divider-1: #05966926;
  --divider-2: #10b98140;
  --divider-glow: #10b98133;

  --toggle-border: #94a3b859;
  --toggle-bg: #ffffffb0;
  --toggle-inset: #ffffff8a;
  --toggle-hover-border: #64748b7a;
  --toggle-hover-bg: #ffffffd4;
  --toggle-hover-inset: #ffffffcc;
  --toggle-focus-inset: #ffffffde;
  --toggle-focus-ring: #10b98155;

  --link: #15803d;
  --link-hover: #14532d;
  --code-bg: #f1f5f9;
  --max-width: 64rem;
  --page-fade-to: rgba(248, 250, 252, 0.9);
  --site-header-height: 4rem;
}

:root.dark {
  --text-primary: #f5f7ff;
  --text-muted: #94a3b8;
  --bg-page: radial-gradient(circle at top, #1f3f35 0%, #0f131f 55%, #090b12 100%);
  --bg-page-solid: #090b12;

  --home-backdrop:
    radial-gradient(circle at 18% 18%, #34d39940 0%, #34d39900 34%),
    radial-gradient(circle at 84% 12%, #38bdf83d 0%, #38bdf800 32%),
    radial-gradient(circle at 72% 76%, #f59e0b24 0%, #f59e0b00 28%),
    linear-gradient(135deg, #ffffff10 0%, #0f172a12 42%, #02061700 100%);
  --home-mesh-line: #ffffff12;
  --home-streak: linear-gradient(180deg, #34d39900 0%, #34d39926 24%, #38bdf840 58%, #ffffff00 100%);
  --home-orb-1: #34d3992e;
  --home-orb-2: #38bdf826;
  --home-orb-3: #f59e0b1f;

  --glass-from: #ffffff2c;
  --glass-to: #ffffff14;
  --glass-border: #ffffff33;
  --glass-shadow: #04050b66;

  --divider-1: #7be7c14d;
  --divider-2: #b2ffe066;
  --divider-glow: #8fffdb3d;

  --toggle-border: #ffffff2e;
  --toggle-bg: #ffffff0d;
  --toggle-inset: #ffffff0a;
  --toggle-hover-border: #ffffff4a;
  --toggle-hover-bg: #ffffff14;
  --toggle-hover-inset: #ffffff12;
  --toggle-focus-inset: #ffffff18;
  --toggle-focus-ring: #c6ffe266;

  --link: #6ee7b7;
  --link-hover: #a7f3d0;
  --code-bg: #1f2937;
  --page-fade-to: rgba(9, 11, 18, 0.9);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100dvh;
  color: var(--text-primary);
  background: var(--bg-page);
}

body {
  position: relative;
  font-size: 1.0625rem;
  line-height: 1.6;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

button,
input {
  font: inherit;
}

button {
  font-weight: 200;
}

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

a:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

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

/* ---- decorative gradient backdrop (mirrors GradientBackdrop.tsx) ---- */

.backdrop {
  pointer-events: none;
  position: fixed;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.backdrop__layer {
  position: absolute;
  inset: 0;
}

.backdrop__base {
  background-image: var(--home-backdrop);
  background-position: center;
  background-size: cover;
}

.backdrop__mesh {
  background-image:
    linear-gradient(var(--home-mesh-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--home-mesh-line) 1px, transparent 1px);
  background-position: center;
  background-size: clamp(110px, 15vw, 170px) clamp(110px, 15vw, 170px);
  opacity: 0.7;
  mask-image: radial-gradient(circle at center, black 12%, transparent 74%);
  -webkit-mask-image: radial-gradient(circle at center, black 12%, transparent 74%);
}

:root.dark .backdrop__mesh {
  opacity: 1;
}

.backdrop__orb {
  position: absolute;
  border-radius: 9999px;
  filter: blur(64px);
}

.backdrop__orb--1 {
  left: 8%;
  top: 10%;
  width: 10rem;
  height: 10rem;
  background: var(--home-orb-1);
}

.backdrop__orb--2 {
  right: 10%;
  top: 14%;
  width: 13rem;
  height: 13rem;
  background: var(--home-orb-2);
}

.backdrop__orb--3 {
  bottom: 8%;
  right: 22%;
  width: 11rem;
  height: 11rem;
  background: var(--home-orb-3);
}

.backdrop__streak {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10rem;
  height: 36rem;
  transform: translate(-50%, -58%) rotate(32deg);
  border-radius: 9999px;
  background: var(--home-streak);
  opacity: 0.9;
  filter: blur(64px);
}

.backdrop__fade {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 10rem;
  background: linear-gradient(180deg, transparent, var(--page-fade-to));
}

@media (max-width: 760px) {
  .backdrop__orb--1 {
    left: -12%;
    top: 12%;
    width: 8rem;
    height: 8rem;
  }
  .backdrop__orb--2 {
    right: -14%;
    top: 8%;
    width: 9rem;
    height: 9rem;
  }
  .backdrop__orb--3 {
    bottom: 14%;
    right: -10%;
    width: 7rem;
    height: 7rem;
  }
  .backdrop__streak {
    width: 7rem;
    height: 26rem;
  }
}

/* ---- foreground layout ---- */

.page {
  position: relative;
  z-index: 1;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding-top: var(--site-header-height);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--site-header-height);
  padding: 0.625rem clamp(1rem, 3vw, 2rem);
  background: linear-gradient(135deg, var(--glass-from), var(--glass-to));
  border-bottom: 1px solid var(--glass-border);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 4px 16px var(--glass-shadow);
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2.5rem;
  margin-left: -0.5rem;
  padding: 0.35rem 0.5rem;
  border: 1px solid transparent;
  border-radius: 0.5rem;
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: 0.3px;
  color: var(--text-primary);
  text-decoration: none;
  transition: background 160ms ease-out, border-color 160ms ease-out;
}

.site-brand:hover {
  border-color: var(--toggle-border);
  background: var(--toggle-hover-bg);
  color: var(--text-primary);
  text-decoration: none;
}

.site-brand__mark {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 0.5rem;
  display: inline-block;
}

.site-brand:focus-visible,
.site-nav a:focus-visible {
  outline: 2px solid var(--toggle-focus-ring);
  outline-offset: 3px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.95rem;
}

.site-nav a {
  min-height: 2.5rem;
  display: inline-flex;
  align-items: center;
  color: var(--text-primary);
  padding: 0.4rem 0.75rem;
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  transition: color 160ms ease-out, background 160ms ease-out;
}

.site-nav a:hover {
  color: var(--text-primary);
  background: var(--toggle-hover-bg);
  text-decoration: none;
}

.cta-call,
.cta-call:hover {
  color: #ffffff;
  background: linear-gradient(140deg, #35d069, #16a34a);
  border: 0;
  padding: 0.55rem 1rem;
  border-radius: 12px;
  font-weight: 600;
  box-shadow: 0 6px 18px #16a34a40;
  text-decoration: none;
  transition: filter 200ms ease;
}

.cta-call:hover {
  filter: brightness(1.08);
}

/* ---- theme toggle (matches app/src/components/ThemeToggle.tsx) ---- */

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  margin-left: 0.5rem;
  padding: 0;
  border-radius: 0.5rem;
  border: 1px solid var(--toggle-border);
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  transition: background 160ms ease-out, border-color 160ms ease-out;
}

.theme-toggle:hover {
  border-color: var(--toggle-hover-border);
  background: var(--toggle-hover-bg);
}

.theme-toggle:focus-visible {
  outline: 0;
  box-shadow: 0 0 0 2px var(--toggle-focus-ring);
}

.theme-toggle svg {
  width: 1rem;
  height: 1rem;
}

.theme-toggle .theme-toggle__sun {
  display: inline;
}
.theme-toggle .theme-toggle__moon {
  display: none;
}
:root.dark .theme-toggle .theme-toggle__sun {
  display: none;
}
:root.dark .theme-toggle .theme-toggle__moon {
  display: inline;
}

/* ---- prose (article body rendered from Markdown) ---- */

.prose {
  position: relative;
  max-width: 48rem;
  margin: 2.5rem auto 0;
  padding: 0 1.5rem 3rem;
  flex: 1 1 auto;
  color: var(--text-primary);
  font-family: "SF Pro Text", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.6;
}

.prose h1 {
  font-family: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 1.25rem;
  font-weight: 200;
  text-align: center;
  color: var(--text-primary);
}

:root.dark .prose h1 {
  color: #ffffff;
}

.prose h2 {
  font-family: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1.375rem;
  letter-spacing: -0.01em;
  margin: 3.5rem 0 0.75rem;
  line-height: 1.2;
  font-weight: 200;
}

.prose h3 {
  font-size: 1.125rem;
  margin: 2rem 0 0.5rem;
  font-weight: 500;
}

.prose p {
  margin: 0 0 1rem;
}

.prose-link-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin: 1.5rem 0;
  font-size: 0;
}

.prose-link-list a {
  display: inline-flex;
  align-items: center;
  min-height: 2.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--glass-border);
  border-radius: 9999px;
  background: linear-gradient(135deg, var(--glass-from), var(--glass-to));
  color: var(--text-primary);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: transform 160ms ease-out, border-color 160ms ease-out, background 160ms ease-out;
}

.prose-link-list a:hover {
  border-color: var(--toggle-hover-border);
  background: var(--toggle-hover-bg);
  color: var(--text-primary);
  text-decoration: none;
  transform: translateY(-1px);
}

.prose-link-list a:focus-visible {
  outline: 2px solid var(--toggle-focus-ring);
  outline-offset: 3px;
}

.prose-lead {
  max-width: 40rem;
  margin: 0 auto 1rem;
  color: var(--text-muted);
  font-size: 1.125rem;
  line-height: 1.5;
  text-align: center;
}

.prose strong {
  color: var(--text-primary);
}

.prose ul,
.prose ol {
  margin: 0 0 1rem;
  padding-left: 1.5rem;
}

.prose li {
  margin: 0.25rem 0;
}

.prose blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--glass-from), var(--glass-to));
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 24px var(--glass-shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  color: var(--text-muted);
  font-style: italic;
}

.prose code {
  background: var(--code-bg);
  padding: 0.125rem 0.4rem;
  border-radius: 0.4rem;
  font-size: 0.92em;
}

.prose pre {
  background: var(--code-bg);
  padding: 1rem;
  border-radius: 12px;
  overflow-x: auto;
}

.prose pre code {
  background: transparent;
  padding: 0;
}

.prose hr {
  height: 1px;
  border: 0;
  margin: 2.5rem 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--divider-1) 22%,
    var(--divider-2) 50%,
    var(--divider-1) 78%,
    transparent 100%
  );
  box-shadow: 0 0 10px var(--divider-glow);
}

.prose img {
  border-radius: 14px;
  border: 1px solid var(--glass-border);
  box-shadow: 0 12px 32px var(--glass-shadow);
  margin: 1.5rem 0;
}

.prose > img {
  display: block;
  margin-inline: auto;
}

.prose > img[width] {
  width: min(13.75rem, 100%);
  aspect-ratio: 1;
  border: 3px solid var(--glass-border);
  border-radius: 50%;
  object-fit: cover;
  box-shadow:
    0 0 0 5px var(--glass-to),
    0 18px 40px var(--glass-shadow);
}

.prose-section {
  margin-top: 3.5rem;
  padding: clamp(1.25rem, 4vw, 1.75rem);
  border: 1px solid var(--glass-border);
  border-radius: 1.5rem;
  background: linear-gradient(135deg, var(--glass-from), var(--glass-to));
  box-shadow: 0 14px 34px var(--glass-shadow);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

:root.dark .prose-section {
  background: rgb(20 20 22 / 0.6);
  border-color: rgb(255 255 255 / 0.08);
}

.prose-section h2 {
  margin: 0 0 0.75rem;
}

.prose-section > :last-child {
  margin-bottom: 0;
}

@media (min-width: 761px) {
  .prose-section {
    padding: 1.75rem;
    border-radius: 24px;
    background: rgb(255 255 255 / 0.8);
    box-shadow: 0 8px 24px var(--glass-shadow);
  }

  :root.dark .prose-section {
    background: transparent;
    border-color: rgb(255 255 255 / 0.15);
  }
}

.language-switcher {
  margin: 0.75rem 0 1.5rem;
}

.language-switcher__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.language-switcher__list a {
  display: inline-block;
  padding: 0.2rem 0.45rem;
  border-radius: 999px;
  border: 1px solid var(--toggle-border);
  background: var(--toggle-bg);
  color: var(--text-primary);
  font-size: 0.76rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  transition: all 160ms ease-out;
}

.language-switcher__list a:hover {
  border-color: var(--toggle-hover-border);
  background: var(--toggle-hover-bg);
  text-decoration: none;
}

.language-switcher__list a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--glass-border);
  border-radius: 12px;
}

.prose thead {
  background: linear-gradient(135deg, var(--glass-from), var(--glass-to));
}

.prose th,
.prose td {
  text-align: start;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--glass-border);
  vertical-align: top;
}

.prose tr:last-child td {
  border-bottom: 0;
}

.prose th {
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
}

[dir="rtl"] .prose {
  text-align: right;
}

/* ---- footer ---- */

.site-footer {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto 2rem;
  padding: 1.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  text-align: center;
}

.site-footer__divider {
  height: 1px;
  margin: 0 0 1rem;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--divider-1) 22%,
    var(--divider-2) 50%,
    var(--divider-1) 78%,
    transparent 100%
  );
  box-shadow: 0 0 10px var(--divider-glow);
}

.site-footer a {
  color: var(--text-muted);
}

.site-footer a:hover {
  color: var(--text-primary);
}

/* ---- responsive ---- */

@media (max-width: 640px) {
  :root {
    --site-header-height: 3.5rem;
  }
  .site-header {
    padding: 0.6rem 0.85rem;
  }
  .site-nav {
    gap: 0.35rem;
  }
  .site-nav a {
    padding: 0.35rem 0.55rem;
  }
  .cta-call {
    padding: 0.45rem 0.75rem;
  }
  .prose {
    margin-top: 1.5rem;
    padding: 0 1.5rem 2rem;
  }
}

@media (max-width: 420px) {
  .site-header {
    gap: 0.5rem;
    padding-inline: 0.625rem;
  }

  .site-brand {
    gap: 0.375rem;
    margin-left: -0.375rem;
    padding-inline: 0.375rem;
    font-size: 1rem;
  }

  .site-brand__mark {
    width: 1.5rem;
    height: 1.5rem;
  }

  .site-nav {
    gap: 0;
    font-size: 0.8125rem;
  }

  .site-nav a {
    min-height: 2.25rem;
    padding-inline: 0.4rem;
  }

  .theme-toggle {
    width: 2rem;
    height: 2rem;
    margin-left: 0.25rem;
  }
}