/* ============================================================
   COGN.CLOUD — Cyberpunk Theme
   Primary: #bf00ff (roxo neon)
   Accent:  #00d4ff (ciano)
   BG:      #0a0a0f
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Rajdhani:wght@400;600;700&family=Inter:wght@400;500&display=swap');

/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:         #0a0a0f;
  --bg2:        #0f0f1a;
  --bg3:        #13131f;
  --border:     #1e1e35;
  --purple:     #bf00ff;
  --purple-dim: #7a00a8;
  --cyan:       #00d4ff;
  --text:       #c8c8e0;
  --text-dim:   #6b6b8a;
  --white:      #f0f0ff;
  --red:        #ff3366;
  --green:      #00ff9f;
  --font-mono:  'Share Tech Mono', monospace;
  --font-head:  'Rajdhani', sans-serif;
  --font-body:  'Inter', sans-serif;
  --glow:       0 0 8px #bf00ff88, 0 0 20px #bf00ff44;
  --glow-cyan:  0 0 8px #00d4ff88, 0 0 20px #00d4ff44;
}

html { scroll-behavior: smooth; }

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  min-height: 100vh;
}

a { color: var(--purple); text-decoration: none; transition: color .2s, text-shadow .2s; }
a:hover { color: var(--cyan); text-shadow: var(--glow-cyan); }

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

/* ── Scrollbar ────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--purple-dim); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--purple); }

/* ── Layout ───────────────────────────────────────────────── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }
.container--narrow { max-width: 780px; margin: 0 auto; padding: 0 1.5rem; }

/* ── Header ───────────────────────────────────────────────── */
.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(10,10,15,.95);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .9rem 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.site-logo {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  color: var(--white);
  letter-spacing: .05em;
}

.site-logo span {
  color: var(--purple);
  text-shadow: var(--glow);
}

.site-logo:hover { color: var(--white); text-shadow: none; }

.site-nav { display: flex; gap: 1.5rem; align-items: center; }
.site-nav a {
  font-family: var(--font-mono);
  font-size: .85rem;
  color: var(--text-dim);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.site-nav a:hover { color: var(--purple); text-shadow: var(--glow); }

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  padding: 4rem 1.5rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 50% 0%, #bf00ff18 0%, transparent 70%);
  pointer-events: none;
}

.hero__title {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 5vw, 3rem);
  color: var(--white);
  letter-spacing: .05em;
  margin-bottom: .5rem;
}

.hero__title .neon {
  color: var(--purple);
  text-shadow: var(--glow);
}

.hero__sub {
  font-family: var(--font-mono);
  font-size: .9rem;
  color: var(--text-dim);
  letter-spacing: .1em;
}

/* ── Tags bar ─────────────────────────────────────────────── */
.tags-bar {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  padding: 1rem 1.5rem;
  max-width: 1100px;
  margin: 0 auto 1.5rem;
}

.tag-pill {
  font-family: var(--font-mono);
  font-size: .75rem;
  padding: .25rem .75rem;
  border: 1px solid var(--border);
  border-radius: 2px;
  color: var(--text-dim);
  background: var(--bg2);
  letter-spacing: .06em;
  transition: all .2s;
}

.tag-pill:hover,
.tag-pill--active {
  border-color: var(--purple);
  color: var(--purple);
  text-shadow: var(--glow);
  background: rgba(191,0,255,.08);
}

/* ── Post grid ────────────────────────────────────────────── */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  padding: 0 1.5rem 4rem;
  max-width: 1100px;
  margin: 0 auto;
}

/* ── Post card ────────────────────────────────────────────── */
.post-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
  position: relative;
  transition: border-color .25s, box-shadow .25s, transform .25s;
  overflow: hidden;
}

.post-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--purple), var(--cyan));
  opacity: 0;
  transition: opacity .25s;
}

.post-card:hover {
  border-color: var(--purple-dim);
  box-shadow: 0 0 20px rgba(191,0,255,.15);
  transform: translateY(-3px);
}

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

.post-card__tags { display: flex; flex-wrap: wrap; gap: .4rem; }

.post-card__tag {
  font-family: var(--font-mono);
  font-size: .7rem;
  color: var(--cyan);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.post-card__tag:hover { text-shadow: var(--glow-cyan); }

.post-card__title {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
}

.post-card__title a { color: inherit; }
.post-card__title a:hover { color: var(--purple); text-shadow: var(--glow); }

.post-card__excerpt {
  font-size: .9rem;
  color: var(--text-dim);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card__meta {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border);
  padding-top: .75rem;
  margin-top: auto;
}

.post-card__read {
  color: var(--purple);
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
}

.post-card__read:hover { color: var(--cyan); }

/* ── Post page ────────────────────────────────────────────── */
.post-header {
  padding: 3rem 1.5rem 2rem;
  max-width: 780px;
  margin: 0 auto;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2.5rem;
}

.post-header__tags { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1rem; }

.post-header__tag {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--cyan);
  letter-spacing: .08em;
  text-transform: uppercase;
  border: 1px solid rgba(0,212,255,.3);
  padding: .2rem .6rem;
  border-radius: 2px;
}

.post-header__tag:hover {
  border-color: var(--cyan);
  text-shadow: var(--glow-cyan);
  background: rgba(0,212,255,.08);
}

.post-header__title {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.post-header__meta {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--text-dim);
}

/* ── Post content (markdown) ──────────────────────────────── */
.post-content { max-width: 780px; margin: 0 auto; padding: 0 1.5rem 4rem; }

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4 {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--white);
  margin: 2rem 0 .75rem;
  line-height: 1.3;
}

.post-content h1 { font-size: 2rem; }
.post-content h2 {
  font-size: 1.5rem;
  padding-bottom: .4rem;
  border-bottom: 1px solid var(--border);
}
.post-content h3 { font-size: 1.2rem; color: var(--purple); }
.post-content h4 { font-size: 1rem; color: var(--cyan); }

.post-content p { margin-bottom: 1.25rem; }

.post-content a { color: var(--purple); border-bottom: 1px solid rgba(191,0,255,.3); }
.post-content a:hover { color: var(--cyan); border-color: var(--cyan); }

.post-content ul,
.post-content ol {
  margin: 0 0 1.25rem 1.5rem;
}

.post-content li { margin-bottom: .4rem; }

.post-content blockquote {
  border-left: 3px solid var(--purple);
  padding: .75rem 1.25rem;
  margin: 1.5rem 0;
  background: rgba(191,0,255,.06);
  color: var(--text-dim);
  font-style: italic;
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: .9rem;
}

.post-content th {
  background: var(--bg3);
  color: var(--purple);
  font-family: var(--font-mono);
  padding: .6rem 1rem;
  text-align: left;
  border: 1px solid var(--border);
}

.post-content td {
  padding: .6rem 1rem;
  border: 1px solid var(--border);
}

.post-content tr:nth-child(even) td { background: var(--bg2); }

/* inline code */
.post-content code {
  font-family: var(--font-mono);
  font-size: .85em;
  background: rgba(191,0,255,.12);
  color: var(--cyan);
  padding: .15em .4em;
  border-radius: 3px;
  border: 1px solid rgba(191,0,255,.2);
}

/* code blocks (pygments) */
.post-content .highlight {
  margin: 1.5rem 0;
  border-radius: 4px;
  border: 1px solid var(--border);
  overflow: hidden;
  position: relative;
}

.post-content .highlight::before {
  content: '';
  display: block;
  height: 2px;
  background: linear-gradient(90deg, var(--purple), var(--cyan));
}

.post-content .highlight pre {
  background: #0d0d1a !important;
  padding: 1.25rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: .85rem;
  line-height: 1.6;
  margin: 0;
}

.post-content .highlight pre code {
  background: none;
  border: none;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

/* ── Pygments — Dracula-inspired dark theme ───────────────── */
.highlight .hll { background-color: #1e1e35 }
.highlight .c  { color: #6272a4; font-style: italic }
.highlight .err { color: #ff5555 }
.highlight .k  { color: #ff79c6 }
.highlight .l  { color: #f1fa8c }
.highlight .n  { color: #f8f8f2 }
.highlight .o  { color: #ff79c6 }
.highlight .p  { color: #f8f8f2 }
.highlight .cm { color: #6272a4; font-style: italic }
.highlight .cp { color: #ff79c6 }
.highlight .c1 { color: #6272a4; font-style: italic }
.highlight .cs { color: #6272a4; font-style: italic }
.highlight .gd { color: #ff5555 }
.highlight .ge { font-style: italic }
.highlight .gi { color: #50fa7b }
.highlight .gs { font-weight: bold }
.highlight .gu { color: #6272a4 }
.highlight .kc { color: #ff79c6 }
.highlight .kd { color: #8be9fd; font-style: italic }
.highlight .kn { color: #ff79c6 }
.highlight .kp { color: #ff79c6 }
.highlight .kr { color: #ff79c6 }
.highlight .kt { color: #8be9fd }
.highlight .ld { color: #f1fa8c }
.highlight .m  { color: #bd93f9 }
.highlight .s  { color: #f1fa8c }
.highlight .na { color: #50fa7b }
.highlight .nb { color: #8be9fd; font-style: italic }
.highlight .nc { color: #50fa7b }
.highlight .no { color: #bd93f9 }
.highlight .nd { color: #50fa7b }
.highlight .ni { color: #f8f8f2 }
.highlight .ne { color: #50fa7b }
.highlight .nf { color: #50fa7b }
.highlight .nl { color: #f8f8f2 }
.highlight .nn { color: #f8f8f2 }
.highlight .nx { color: #50fa7b }
.highlight .py { color: #f8f8f2 }
.highlight .nt { color: #ff79c6 }
.highlight .nv { color: #8be9fd; font-style: italic }
.highlight .ow { color: #ff79c6 }
.highlight .w  { color: #f8f8f2 }
.highlight .mf { color: #bd93f9 }
.highlight .mh { color: #bd93f9 }
.highlight .mi { color: #bd93f9 }
.highlight .mo { color: #bd93f9 }
.highlight .sb { color: #f1fa8c }
.highlight .sc { color: #f1fa8c }
.highlight .sd { color: #f1fa8c }
.highlight .s2 { color: #f1fa8c }
.highlight .se { color: #f1fa8c }
.highlight .sh { color: #f1fa8c }
.highlight .si { color: #f1fa8c }
.highlight .sx { color: #f1fa8c }
.highlight .sr { color: #f1fa8c }
.highlight .s1 { color: #f1fa8c }
.highlight .ss { color: #f1fa8c }
.highlight .bp { color: #f8f8f2 }
.highlight .vc { color: #8be9fd; font-style: italic }
.highlight .vg { color: #8be9fd; font-style: italic }
.highlight .vi { color: #8be9fd; font-style: italic }
.highlight .il { color: #bd93f9 }

/* ── Footer ───────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--text-dim);
}

.site-footer a { color: var(--purple); }
.site-footer a:hover { color: var(--cyan); }

/* ── Empty state ──────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 4rem 1.5rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.empty-state__icon { font-size: 3rem; margin-bottom: 1rem; opacity: .4; }

/* ── 404 ──────────────────────────────────────────────────── */
.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  text-align: center;
  padding: 2rem;
}

.error-page__code {
  font-family: var(--font-mono);
  font-size: clamp(5rem, 15vw, 10rem);
  color: var(--purple);
  text-shadow: var(--glow);
  line-height: 1;
  margin-bottom: .5rem;
}

.error-page__msg {
  font-family: var(--font-head);
  font-size: 1.5rem;
  color: var(--text-dim);
  margin-bottom: 2rem;
}

/* ── Admin ────────────────────────────────────────────────── */
.admin-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
}

.admin-sidebar {
  background: var(--bg2);
  border-right: 1px solid var(--border);
  padding: 2rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.admin-sidebar__logo {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--white);
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.admin-sidebar__logo span { color: var(--purple); text-shadow: var(--glow); }

.admin-nav-link {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--text-dim);
  padding: .5rem .75rem;
  border-radius: 3px;
  letter-spacing: .05em;
  transition: all .2s;
  display: flex;
  align-items: center;
  gap: .5rem;
}

.admin-nav-link:hover,
.admin-nav-link--active {
  color: var(--purple);
  background: rgba(191,0,255,.08);
  text-shadow: var(--glow);
}

.admin-main { padding: 2rem; overflow-y: auto; }

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.admin-title {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .06em;
  padding: .5rem 1.1rem;
  border-radius: 3px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .2s;
  text-decoration: none;
}

.btn--primary {
  background: var(--purple);
  color: #fff;
  border-color: var(--purple);
  box-shadow: var(--glow);
}

.btn--primary:hover {
  background: #d400ff;
  color: #fff;
  box-shadow: 0 0 16px #bf00ffaa;
}

.btn--outline {
  background: transparent;
  color: var(--purple);
  border-color: var(--purple);
}

.btn--outline:hover {
  background: rgba(191,0,255,.1);
  color: var(--purple);
  box-shadow: var(--glow);
}

.btn--danger {
  background: transparent;
  color: var(--red);
  border-color: var(--red);
}

.btn--danger:hover {
  background: rgba(255,51,102,.1);
  box-shadow: 0 0 8px rgba(255,51,102,.4);
}

.btn--sm { padding: .3rem .7rem; font-size: .75rem; }

/* ── Admin table ──────────────────────────────────────────── */
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .88rem;
}

.admin-table th {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--text-dim);
  text-align: left;
  padding: .6rem 1rem;
  border-bottom: 1px solid var(--border);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.admin-table td {
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.admin-table tr:hover td { background: rgba(191,0,255,.04); }

.badge {
  font-family: var(--font-mono);
  font-size: .7rem;
  padding: .2rem .55rem;
  border-radius: 2px;
  letter-spacing: .05em;
}

.badge--published { background: rgba(0,255,159,.12); color: var(--green); border: 1px solid rgba(0,255,159,.3); }
.badge--draft     { background: rgba(107,107,138,.12); color: var(--text-dim); border: 1px solid var(--border); }

/* ── Forms ────────────────────────────────────────────────── */
.form-group { margin-bottom: 1.25rem; }

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--text-dim);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: .4rem;
}

.form-input,
.form-textarea {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: .9rem;
  padding: .6rem .9rem;
  transition: border-color .2s, box-shadow .2s;
  outline: none;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 2px rgba(191,0,255,.15);
}

.form-textarea {
  font-family: var(--font-mono);
  font-size: .85rem;
  resize: vertical;
  min-height: 420px;
  line-height: 1.6;
}

.form-hint {
  font-size: .78rem;
  color: var(--text-dim);
  margin-top: .3rem;
}

.form-check { display: flex; align-items: center; gap: .6rem; }

.form-check input[type="checkbox"] {
  width: 16px; height: 16px;
  accent-color: var(--purple);
  cursor: pointer;
}

.form-check label {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--text-dim);
  cursor: pointer;
}

.alert {
  padding: .75rem 1rem;
  border-radius: 3px;
  font-size: .88rem;
  margin-bottom: 1.25rem;
}

.alert--error {
  background: rgba(255,51,102,.1);
  border: 1px solid rgba(255,51,102,.3);
  color: var(--red);
}

/* ── Login page ───────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse 50% 50% at 50% 50%, #bf00ff0d 0%, transparent 70%),
    var(--bg);
}

.login-box {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2.5rem;
  width: 100%;
  max-width: 380px;
}

.login-box__logo {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--white);
  text-align: center;
  margin-bottom: 2rem;
}

.login-box__logo span { color: var(--purple); text-shadow: var(--glow); }

/* ── Scanline overlay (decorativo) ───────────────────────── */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,.03) 2px,
    rgba(0,0,0,.03) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
  .posts-grid { grid-template-columns: 1fr; padding: 0 1rem 3rem; }
  .hero { padding: 2.5rem 1rem 2rem; }
  .tags-bar { padding: .75rem 1rem; }
  .post-header { padding: 2rem 1rem 1.5rem; }
  .post-content { padding: 0 1rem 3rem; }

  .admin-layout { grid-template-columns: 1fr; }
  .admin-sidebar { display: none; }
  .admin-main { padding: 1.25rem; }
}

@media (max-width: 480px) {
  .site-header__inner { padding: .75rem 1rem; }
  .site-logo { font-size: 1.1rem; }
}