:root {
  --bg: #1a1a2e;
  --bg-surface: #16213e;
  --text: #e0e0e0;
  --text-muted: #8a8a9a;
  --accent: #e2b714;
  --accent-hover: #f0c830;
  --max-width: 42rem;
}

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

html {
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

body {
  font-family: text, sans-serif;
  font-weight: 400;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

h1, h2, h3 {
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

h1 { font-size: 2rem; margin-bottom: 0.5rem; }
h2 { font-size: 1.4rem; margin: 2.5rem 0 1rem; }
h3 { font-size: 1.15rem; margin: 2rem 0 0.75rem; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

nav {
  padding: 1.5rem 0;
  border-top: 2px solid var(--accent);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

nav a {
  color: var(--text);
  transition: color 0.2s;
}

nav a:hover {
  color: var(--accent);
}

.site-title {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-links a {
  font-size: 0.9rem;
  color: var(--text-muted);
}

main {
  flex: 1;
  padding: 3rem 0;
  animation: fadeIn 0.4s ease;
}

footer {
  padding: 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

footer p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.intro {
  margin-bottom: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.intro h1 {
  color: #fff;
}

.intro p {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-top: 0.5rem;
}

.post-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.post-list li {
  transform: translateX(0);
  transition: transform 0.2s ease;
}

.post-list li:hover {
  transform: translateX(0.5rem);
}

.post-list a {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.75rem 0 0.25rem;
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s;
}

.post-list a:hover {
  color: var(--accent);
}

.post-list .post-title {
  font-weight: 700;
}

.post-list .post-meta {
  color: var(--text-muted);
  font-size: 0.85rem;
  white-space: nowrap;
  margin-left: 1rem;
}

.post-list .post-description {
  color: var(--text-muted);
  font-size: 0.9rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.post-header {
  margin-bottom: 3rem;
}

.post-header h1 {
  margin-bottom: 0.75rem;
}

.post-header .post-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.post-content {
  line-height: 1.85;
}

.post-content p {
  margin-bottom: 1.75rem;
}

.post-content blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1.25rem;
  margin: 2rem 0;
  color: var(--text-muted);
  font-style: italic;
}

.post-content ul,
.post-content ol {
  margin: 1.75rem 0;
  padding-left: 1.5rem;
}

.post-content li {
  margin-bottom: 0.5rem;
}

.post-content img {
  max-width: 100%;
  border-radius: 0.5rem;
  margin: 2rem 0;
}

.post-content code {
  background: var(--bg-surface);
  padding: 0.15rem 0.4rem;
  border-radius: 0.25rem;
  font-size: 0.9em;
}

.post-content pre {
  background: var(--bg-surface);
  padding: 1.25rem;
  border-radius: 0.5rem;
  overflow-x: auto;
  margin: 2rem 0;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.post-content pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  font-size: 0.85rem;
}

.comments {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.comments h2 {
  margin-bottom: 1.5rem;
}

.giscus {
  max-width: 100%;
}

.post-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.9rem;
}

.post-nav a {
  color: var(--text-muted);
  transition: color 0.2s;
}

.post-nav a:hover {
  color: var(--accent);
}

.not-found {
  text-align: center;
  padding: 4rem 0;
}

.not-found h1 {
  font-size: 4rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.not-found p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(0.5rem); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}

@media (max-width: 640px) {
  h1 { font-size: 1.6rem; }

  .post-list a {
    flex-direction: column;
    gap: 0.25rem;
  }

  .post-list .post-meta {
    margin-left: 0;
  }
}

@font-face {
  font-family: 'text';
  font-style: normal;
  font-weight: 400;
  src: url('fonts/text-normal-400-cyrillic-ext.woff2') format('woff2');
  unicode-range: U+0460-052F, U+1C80-1C8A, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}

@font-face {
  font-family: 'text';
  font-style: normal;
  font-weight: 400;
  src: url('fonts/text-normal-400-cyrillic.woff2') format('woff2');
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

@font-face {
  font-family: 'text';
  font-style: normal;
  font-weight: 400;
  src: url('fonts/text-normal-400-greek-ext.woff2') format('woff2');
  unicode-range: U+1F00-1FFF;
}

@font-face {
  font-family: 'text';
  font-style: normal;
  font-weight: 400;
  src: url('fonts/text-normal-400-greek.woff2') format('woff2');
  unicode-range: U+0370-0377, U+037A-037F, U+0384-038A, U+038C, U+038E-03A1, U+03A3-03FF;
}

@font-face {
  font-family: 'text';
  font-style: normal;
  font-weight: 400;
  src: url('fonts/text-normal-400-math.woff2') format('woff2');
  unicode-range: U+0302-0303, U+0305, U+0307-0308, U+0310, U+0312, U+0315, U+031A, U+0326-0327, U+032C, U+032F-0330, U+0332-0333, U+0338, U+033A, U+0346, U+034D, U+0391-03A1, U+03A3-03A9, U+03B1-03C9, U+03D1, U+03D5-03D6, U+03F0-03F1, U+03F4-03F5, U+2016-2017, U+2034-2038, U+203C, U+2040, U+2043, U+2047, U+2050, U+2057, U+205F, U+2070-2071, U+2074-208E, U+2090-209C, U+20D0-20DC, U+20E1, U+20E5-20EF, U+2100-2112, U+2114-2115, U+2117-2121, U+2123-214F, U+2190, U+2192, U+2194-21AE, U+21B0-21E5, U+21F1-21F2, U+21F4-2211, U+2213-2214, U+2216-22FF, U+2308-230B, U+2310, U+2319, U+231C-2321, U+2336-237A, U+237C, U+2395, U+239B-23B7, U+23D0, U+23DC-23E1, U+2474-2475, U+25AF, U+25B3, U+25B7, U+25BD, U+25C1, U+25CA, U+25CC, U+25FB, U+266D-266F, U+27C0-27FF, U+2900-2AFF, U+2B0E-2B11, U+2B30-2B4C, U+2BFE, U+3030, U+FF5B, U+FF5D, U+1D400-1D7FF, U+1EE00-1EEFF;
}

@font-face {
  font-family: 'text';
  font-style: normal;
  font-weight: 400;
  src: url('fonts/text-normal-400-symbols.woff2') format('woff2');
  unicode-range: U+0001-000C, U+000E-001F, U+007F-009F, U+20DD-20E0, U+20E2-20E4, U+2150-218F, U+2190, U+2192, U+2194-2199, U+21AF, U+21E6-21F0, U+21F3, U+2218-2219, U+2299, U+22C4-22C6, U+2300-243F, U+2440-244A, U+2460-24FF, U+25A0-27BF, U+2800-28FF, U+2921-2922, U+2981, U+29BF, U+29EB, U+2B00-2BFF, U+4DC0-4DFF, U+FFF9-FFFB, U+10140-1018E, U+10190-1019C, U+101A0, U+101D0-101FD, U+102E0-102FB, U+10E60-10E7E, U+1D2C0-1D2D3, U+1D2E0-1D37F, U+1F000-1F0FF, U+1F100-1F1AD, U+1F1E6-1F1FF, U+1F30D-1F30F, U+1F315, U+1F31C, U+1F31E, U+1F320-1F32C, U+1F336, U+1F378, U+1F37D, U+1F382, U+1F393-1F39F, U+1F3A7-1F3A8, U+1F3AC-1F3AF, U+1F3C2, U+1F3C4-1F3C6, U+1F3CA-1F3CE, U+1F3D4-1F3E0, U+1F3ED, U+1F3F1-1F3F3, U+1F3F5-1F3F7, U+1F408, U+1F415, U+1F41F, U+1F426, U+1F43F, U+1F441-1F442, U+1F444, U+1F446-1F449, U+1F44C-1F44E, U+1F453, U+1F46A, U+1F47D, U+1F4A3, U+1F4B0, U+1F4B3, U+1F4B9, U+1F4BB, U+1F4BF, U+1F4C8-1F4CB, U+1F4D6, U+1F4DA, U+1F4DF, U+1F4E3-1F4E6, U+1F4EA-1F4ED, U+1F4F7, U+1F4F9-1F4FB, U+1F4FD-1F4FE, U+1F503, U+1F507-1F50B, U+1F50D, U+1F512-1F513, U+1F53E-1F54A, U+1F54F-1F5FA, U+1F610, U+1F650-1F67F, U+1F687, U+1F68D, U+1F691, U+1F694, U+1F698, U+1F6AD, U+1F6B2, U+1F6B9-1F6BA, U+1F6BC, U+1F6C6-1F6CF, U+1F6D3-1F6D7, U+1F6E0-1F6EA, U+1F6F0-1F6F3, U+1F6F7-1F6FC, U+1F700-1F7FF, U+1F800-1F80B, U+1F810-1F847, U+1F850-1F859, U+1F860-1F887, U+1F890-1F8AD, U+1F8B0-1F8BB, U+1F8C0-1F8C1, U+1F900-1F90B, U+1F93B, U+1F946, U+1F984, U+1F996, U+1F9E9, U+1FA00-1FA6F, U+1FA70-1FA7C, U+1FA80-1FA89, U+1FA8F-1FAC6, U+1FACE-1FADC, U+1FADF-1FAE9, U+1FAF0-1FAF8, U+1FB00-1FBFF;
}

@font-face {
  font-family: 'text';
  font-style: normal;
  font-weight: 400;
  src: url('fonts/text-normal-400-vietnamese.woff2') format('woff2');
  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB;
}

@font-face {
  font-family: 'text';
  font-style: normal;
  font-weight: 400;
  src: url('fonts/text-normal-400-latin-ext.woff2') format('woff2');
  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: 'text';
  font-style: normal;
  font-weight: 400;
  src: url('fonts/text-normal-400-latin.woff2') format('woff2');
  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: 'text';
  font-style: normal;
  font-weight: 700;
  src: url('fonts/text-normal-700-cyrillic-ext.woff2') format('woff2');
  unicode-range: U+0460-052F, U+1C80-1C8A, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}

@font-face {
  font-family: 'text';
  font-style: normal;
  font-weight: 700;
  src: url('fonts/text-normal-700-cyrillic.woff2') format('woff2');
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

@font-face {
  font-family: 'text';
  font-style: normal;
  font-weight: 700;
  src: url('fonts/text-normal-700-greek-ext.woff2') format('woff2');
  unicode-range: U+1F00-1FFF;
}

@font-face {
  font-family: 'text';
  font-style: normal;
  font-weight: 700;
  src: url('fonts/text-normal-700-greek.woff2') format('woff2');
  unicode-range: U+0370-0377, U+037A-037F, U+0384-038A, U+038C, U+038E-03A1, U+03A3-03FF;
}

@font-face {
  font-family: 'text';
  font-style: normal;
  font-weight: 700;
  src: url('fonts/text-normal-700-math.woff2') format('woff2');
  unicode-range: U+0302-0303, U+0305, U+0307-0308, U+0310, U+0312, U+0315, U+031A, U+0326-0327, U+032C, U+032F-0330, U+0332-0333, U+0338, U+033A, U+0346, U+034D, U+0391-03A1, U+03A3-03A9, U+03B1-03C9, U+03D1, U+03D5-03D6, U+03F0-03F1, U+03F4-03F5, U+2016-2017, U+2034-2038, U+203C, U+2040, U+2043, U+2047, U+2050, U+2057, U+205F, U+2070-2071, U+2074-208E, U+2090-209C, U+20D0-20DC, U+20E1, U+20E5-20EF, U+2100-2112, U+2114-2115, U+2117-2121, U+2123-214F, U+2190, U+2192, U+2194-21AE, U+21B0-21E5, U+21F1-21F2, U+21F4-2211, U+2213-2214, U+2216-22FF, U+2308-230B, U+2310, U+2319, U+231C-2321, U+2336-237A, U+237C, U+2395, U+239B-23B7, U+23D0, U+23DC-23E1, U+2474-2475, U+25AF, U+25B3, U+25B7, U+25BD, U+25C1, U+25CA, U+25CC, U+25FB, U+266D-266F, U+27C0-27FF, U+2900-2AFF, U+2B0E-2B11, U+2B30-2B4C, U+2BFE, U+3030, U+FF5B, U+FF5D, U+1D400-1D7FF, U+1EE00-1EEFF;
}

@font-face {
  font-family: 'text';
  font-style: normal;
  font-weight: 700;
  src: url('fonts/text-normal-700-symbols.woff2') format('woff2');
  unicode-range: U+0001-000C, U+000E-001F, U+007F-009F, U+20DD-20E0, U+20E2-20E4, U+2150-218F, U+2190, U+2192, U+2194-2199, U+21AF, U+21E6-21F0, U+21F3, U+2218-2219, U+2299, U+22C4-22C6, U+2300-243F, U+2440-244A, U+2460-24FF, U+25A0-27BF, U+2800-28FF, U+2921-2922, U+2981, U+29BF, U+29EB, U+2B00-2BFF, U+4DC0-4DFF, U+FFF9-FFFB, U+10140-1018E, U+10190-1019C, U+101A0, U+101D0-101FD, U+102E0-102FB, U+10E60-10E7E, U+1D2C0-1D2D3, U+1D2E0-1D37F, U+1F000-1F0FF, U+1F100-1F1AD, U+1F1E6-1F1FF, U+1F30D-1F30F, U+1F315, U+1F31C, U+1F31E, U+1F320-1F32C, U+1F336, U+1F378, U+1F37D, U+1F382, U+1F393-1F39F, U+1F3A7-1F3A8, U+1F3AC-1F3AF, U+1F3C2, U+1F3C4-1F3C6, U+1F3CA-1F3CE, U+1F3D4-1F3E0, U+1F3ED, U+1F3F1-1F3F3, U+1F3F5-1F3F7, U+1F408, U+1F415, U+1F41F, U+1F426, U+1F43F, U+1F441-1F442, U+1F444, U+1F446-1F449, U+1F44C-1F44E, U+1F453, U+1F46A, U+1F47D, U+1F4A3, U+1F4B0, U+1F4B3, U+1F4B9, U+1F4BB, U+1F4BF, U+1F4C8-1F4CB, U+1F4D6, U+1F4DA, U+1F4DF, U+1F4E3-1F4E6, U+1F4EA-1F4ED, U+1F4F7, U+1F4F9-1F4FB, U+1F4FD-1F4FE, U+1F503, U+1F507-1F50B, U+1F50D, U+1F512-1F513, U+1F53E-1F54A, U+1F54F-1F5FA, U+1F610, U+1F650-1F67F, U+1F687, U+1F68D, U+1F691, U+1F694, U+1F698, U+1F6AD, U+1F6B2, U+1F6B9-1F6BA, U+1F6BC, U+1F6C6-1F6CF, U+1F6D3-1F6D7, U+1F6E0-1F6EA, U+1F6F0-1F6F3, U+1F6F7-1F6FC, U+1F700-1F7FF, U+1F800-1F80B, U+1F810-1F847, U+1F850-1F859, U+1F860-1F887, U+1F890-1F8AD, U+1F8B0-1F8BB, U+1F8C0-1F8C1, U+1F900-1F90B, U+1F93B, U+1F946, U+1F984, U+1F996, U+1F9E9, U+1FA00-1FA6F, U+1FA70-1FA7C, U+1FA80-1FA89, U+1FA8F-1FAC6, U+1FACE-1FADC, U+1FADF-1FAE9, U+1FAF0-1FAF8, U+1FB00-1FBFF;
}

@font-face {
  font-family: 'text';
  font-style: normal;
  font-weight: 700;
  src: url('fonts/text-normal-700-vietnamese.woff2') format('woff2');
  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB;
}

@font-face {
  font-family: 'text';
  font-style: normal;
  font-weight: 700;
  src: url('fonts/text-normal-700-latin-ext.woff2') format('woff2');
  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: 'text';
  font-style: normal;
  font-weight: 700;
  src: url('fonts/text-normal-700-latin.woff2') format('woff2');
  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;
}