/* =========================================================
   blogStyle.css — WriteInOne custom theme
   Light: blue palette  |  Dark (html.dark): red palette
   ========================================================= */

/* --- Fonts --- */

@font-face {
  font-family: square;
  src: url("https://gonzalo-leon.site/fonts/forcedsquare.ttf");
}

@font-face {
  font-family: anton;
  src: url("https://gonzalo-leon.site/fonts/Anton-Regular.ttf");
}

@font-face {
  font-family: robotoB;
  src: url("https://gonzalo-leon.site/fonts/Roboto-Bold.ttf");
}

@font-face {
  font-family: roboto;
  src: url("https://gonzalo-leon.site/fonts/Roboto-Regular.ttf");
}

/* --- Palette tokens --- */

:root {
  --color-back: #5a8bbf;
  --color-accent: #1a72cc;
  --color-light: #002a52;
  --color-secondary: #024a80;
}

html.dark {
  --color-back: #3e0e0e;
  --color-accent: #ff2020;
  --color-light: #ffe8dc;
  --color-secondary: #f5e6e0;
}

/* --- Platform CSS variable overrides --- */

:root {
  --bg: transparent;
  --fg: var(--color-light);
  --border: color-mix(in srgb, var(--color-accent) 30%, transparent);
  --muted: color-mix(in srgb, var(--color-light) 55%, transparent);
  --muted-2: var(--color-secondary);
  --muted-3: var(--color-secondary);
  --surface: color-mix(in srgb, var(--color-accent) 22%, var(--color-back));
  --tag-bg: color-mix(in srgb, var(--color-accent) 22%, var(--color-back));
  --tag-fg: var(--color-secondary);
  --blockquote-border: var(--color-accent);
  --blockquote-fg: var(--color-secondary);
  --code-bg: #d6eeff;
  --inline-code-bg: #d6eeff;
  --copy-btn-bg: #b0daff;
  --copy-btn-border: color-mix(in srgb, var(--color-accent) 50%, transparent);
  --copy-btn-fg: #002a52;
}

html.dark {
  --bg: transparent;
  --fg: var(--color-light);
  --border: color-mix(in srgb, var(--color-accent) 25%, transparent);
  --muted: color-mix(in srgb, var(--color-light) 50%, transparent);
  --muted-2: var(--color-secondary);
  --muted-3: var(--color-secondary);
  --surface: color-mix(in srgb, var(--color-back) 88%, black);
  --tag-bg: color-mix(in srgb, var(--color-accent) 18%, var(--color-back));
  --tag-fg: var(--color-secondary);
  --blockquote-border: var(--color-accent);
  --blockquote-fg: var(--color-secondary);
  --code-bg: color-mix(in srgb, black 55%, var(--color-back));
  --inline-code-bg: color-mix(in srgb, black 55%, var(--color-back));
  --copy-btn-bg: color-mix(in srgb, black 40%, var(--color-back));
  --copy-btn-border: color-mix(in srgb, var(--color-accent) 30%, transparent);
  --copy-btn-fg: var(--color-secondary);
}

/* =========================================================
   Global
   ========================================================= */

* {
  box-sizing: border-box;
}

html {
  background: radial-gradient(
    ellipse 120% 50% at 50% 0%,
    color-mix(in srgb, var(--color-accent) 70%, var(--color-back)) 0%,
    var(--color-back) 70%
  );
  background-attachment: fixed;
  min-height: 100%;
}

body {
  background: transparent;
  color: var(--color-light);
  font-family: roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  font-weight: 400;
  overflow-x: hidden;
}

::-webkit-scrollbar {
  width: 1vw;
  background: var(--color-accent);
}

::-webkit-scrollbar-thumb {
  background: var(--color-back);
  border-radius: 4px;
}

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-light);
}

.container {
  max-width: 900px;
  width: 100%;
  background: color-mix(in srgb, white 70%, var(--color-back));
  border-radius: 16px;
}

html.dark .container {
  background: color-mix(in srgb, var(--color-back) 50%, black);
}

/* =========================================================
   Header & navigation
   ========================================================= */

header {
  background: color-mix(in srgb, var(--color-back) 80%, transparent);
  border-bottom: 1px solid var(--border);
  padding: 0.9rem 0;
  backdrop-filter: blur(6px);
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 900px;
  margin: 0 auto;
  padding: 1rem;
}

.site-name {
  font-family: anton, sans-serif;
  font-size: 1.4rem;
  color: var(--color-light);
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: color 0.2s ease;
}

.site-name:hover {
  color: var(--color-secondary);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 1.8rem;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--color-secondary);
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.nav-right {
  height: 2rem;
}

.nav-links a:hover {
  color: var(--color-light);
}

.theme-btn {
  height: 100%;
  background: color-mix(in srgb, white 50%, var(--color-back));
  border: 1px solid var(--border);
  color: var(--color-secondary);
  border-radius: 50px;
  padding: 0.3em 0.8em;
  cursor: pointer;
  font-size: 1rem;
  transition:
    background 0.2s ease,
    color 0.2s ease;
}

.theme-btn:hover {
  background: var(--color-accent);
  color: var(--color-light);
}

/* =========================================================
   Footer
   ========================================================= */

footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
  text-align: center;
  font-size: 0.82rem;
  color: var(--muted);
}
footer p {
  padding: 1rem;
}

/* =========================================================
   Post list page
   ========================================================= */

.site-hero {
  padding: 5rem 0 3rem;
  text-align: center;
}

.site-hero h1 {
  font-family: anton, sans-serif;
  font-size: clamp(2.4rem, 6vw, 4rem);
  color: var(--color-light);
  margin-bottom: 0.6rem;
  letter-spacing: 0.03em;
}

.site-description {
  color: var(--color-secondary);
  font-size: 1.05rem;
  max-width: 900px;
  margin: 0 auto;
}

.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
}

.post-card {
  background: color-mix(in srgb, white 60%, var(--color-back));
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  padding: 2rem;
  margin-bottom: 2rem;
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease;
}

.post-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px
    color-mix(in srgb, var(--color-accent) 20%, transparent);
}

.post-card__cover {
  width: 100%;
  display: block;
  object-fit: cover;
  max-height: 220px;
  filter: sepia(8%) hue-rotate(155deg);
  opacity: 0.85;
  transition: opacity 0.3s ease;
}

html.dark .post-card {
  background: color-mix(in srgb, var(--color-accent) 12%, var(--color-back));
}

html.dark .post-card__cover {
  filter: invert() sepia(8%) hue-rotate(80deg);
}

.post-card:hover .post-card__cover {
  opacity: 1;
}

.post-card__title {
  padding: 0.4rem 0.4rem 0;
  font-family: robotoB, sans-serif;
  font-size: 1.25rem;
  margin: 0;
}

.post-card__title a {
  color: var(--color-light);
}

.post-card__title a:hover {
  color: var(--color-secondary);
}

.post-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.8rem 1.4rem 1.2rem;
}

.empty-state {
  text-align: center;
  padding: 5rem 1rem;
  color: var(--muted);
  font-size: 1rem;
}
.search-bar__input::placeholder {
  color: var(--fg);
}

/* =========================================================
   Post detail page
   ========================================================= */

.post-header {
  background: color-mix(in srgb, white 60%, var(--color-back));
  border-radius: 16px;
  padding: 1rem 2rem;
  margin-bottom: 1.5rem;
  margin-top: 1rem;
}

html.dark .post-header {
  background: color-mix(in srgb, var(--color-back) 88%, black);
}

.post-header__back:hover {
  color: var(--color-light);
  transform: translateX(-3px);
}

.post-header__title {
  font-family: anton, sans-serif;
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: var(--color-light);
  line-height: 1.2;
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}

.post-header__excerpt {
  font-style: italic;
}

.post-header__cover {
  width: 100%;
  border-radius: 8px;
  display: block;
  margin-top: 1.5rem;
  filter: sepia(8%) hue-rotate(155deg);
  opacity: 0.88;
}

html.dark .post-header__cover {
  filter: invert() sepia(8%) hue-rotate(80deg);
}

/* =========================================================
   Post body — Markdown
   ========================================================= */

.post-body {
  margin: 2.5rem 0 4rem;
  padding: 0 1.5rem;
  font-size: 1rem;
  line-height: 1.8;
  text-align: justify;
}

.post-body h1,
.post-body h2,
.post-body h3,
.post-body h4 {
  font-family: robotoB, sans-serif;
  color: var(--color-light);
  margin: 2.2rem 0 0.7rem;
  line-height: 1.25;
}

.post-body h1 {
  font-size: 1.9rem;
}
.post-body h2 {
  font-size: 1.55rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.3rem;
}
.post-body h3 {
  font-size: 1.25rem;
}
.post-body h4 {
  font-size: 1.05rem;
}

.post-body p {
  text-align: justify;
  margin: 0 0 1.2rem;
}

.post-body blockquote {
  background: color-mix(in srgb, var(--color-accent) 10%, transparent);
  border-radius: 0 4px 4px 0;
}

.post-body pre,
.post-body code {
  font-family: ui-monospace, "Cascadia Code", "Fira Code", Consolas, monospace;
  font-size: 0.82em;
}

.post-body pre {
  border-radius: 6px;
  padding: 1.2rem 1.4rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}

.post-body pre code {
  background: none;
  padding: 0;
  font-size: 1em;
}

html.dark .post-body pre {
  background: color-mix(in srgb, var(--color-accent) 10%, transparent);
}

.post-body a {
  color: var(--color-accent);
  text-decoration: underline;
}

.post-body a:hover {
  color: var(--color-light);
}

.post-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

.post-body th {
  font-family: robotoB, sans-serif;
}

/* =========================================================
   Shared components
   ========================================================= */

.tag {
  color: white;
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border: 1px solid color-mix(in srgb, var(--color-accent) 35%, transparent);
  transition:
    background 0.2s ease,
    color 0.2s ease;
}

.tag:hover {
  background: var(--color-accent);
  color: white;
}

/* =========================================================
   Responsive
   ========================================================= */

@media only screen and (max-width: 600px) {
  .site-hero {
    padding: 3rem 0 2rem;
  }

  .post-header {
    padding: 2rem 1.2rem 1.5rem;
  }

  .nav-links {
    gap: 1rem;
  }
}