/* custom.css - Professional Tech/Security Palette */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Color Palette */
  --primary-blue: #004BFF;
  --alert-red: #CF3431;
  --deep-black: #111821;
  --surface-white: #FFFFFF;
  --muted-grey: #EAEAEA;
  --text-primary: #1A1A1A;
  --text-secondary: #4B5563;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-code: 'JetBrains Mono', monospace;
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  :root {
    --surface-white: #1A1A1A;
    --text-primary: #F3F4F6;
    --text-secondary: #9CA3AF;
    --muted-grey: #374151;
    --deep-black: #000000;
  }
}

body {
  font-family: var(--font-primary);
  color: var(--text-primary);
  background-color: var(--surface-white);
  line-height: 1.6;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Links */
a {
  color: var(--primary-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* Buttons */
.btn, button {
  font-family: var(--font-primary);
  font-weight: 600;
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--primary-blue);
  color: white;
}

.btn-primary:hover {
  background-color: #003ecc;
  color: white;
  text-decoration: none;
}

.btn-secondary {
  background-color: transparent;
  color: var(--deep-black);
  border: 1px solid var(--muted-grey);
}

.btn-secondary:hover {
  border-color: var(--deep-black);
  background-color: var(--muted-grey);
}

.btn-danger {
  background-color: var(--alert-red);
  color: white;
}

.btn-danger:hover {
  background-color: #b02a27;
  color: white;
}

/* Cards */
.card {
  background: var(--surface-white);
  border: 1px solid var(--muted-grey);
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* Code Blocks */
code, pre {
  font-family: var(--font-code);
  background-color: var(--deep-black);
  color: #f8f8f2;
  border-radius: 4px;
}

code {
  padding: 0.2em 0.4em;
  font-size: 0.9em;
}

pre {
  padding: 1rem;
  overflow-x: auto;
  border: 1px solid var(--muted-grey);
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
}

th, td {
  border: 1px solid var(--muted-grey);
  padding: 0.75rem;
  text-align: left;
}

th {
  background-color: var(--muted-grey);
  font-weight: 600;
}

tr:nth-child(even) {
  background-color: rgba(0,0,0,0.02);
}

/* Blockquotes */
blockquote {
  border-left: 4px solid var(--primary-blue);
  margin: 1.5rem 0;
  padding: 0.5rem 1rem;
  background-color: rgba(0, 75, 255, 0.05);
  color: var(--text-secondary);
}

/* Tags/Badges */
.badge, .tag {
  display: inline-block;
  padding: 0.25rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 99px;
  background-color: var(--muted-grey);
  color: var(--text-primary);
}

/* Forms */
input, textarea, select {
  font-family: var(--font-primary);
  border: 1px solid var(--muted-grey);
  border-radius: 4px;
  padding: 0.6rem;
  width: 100%;
  background-color: var(--surface-white);
  color: var(--text-primary);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(0, 75, 255, 0.1);
}

/* Footer */
footer {
  border-top: 1px solid var(--muted-grey);
  background-color: var(--surface-white);
  color: var(--text-secondary);
  padding: 2rem 0;
  margin-top: 3rem;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--surface-white);
}

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

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* Selection */
::selection {
  background-color: var(--primary-blue);
  color: white;
}

/* ------------------------------------------------------------
   Small cleanup after reverting design experiments
   ------------------------------------------------------------ */

/* Do not underline an entire post card when hovering/clicking the card link. */
#post-list a,
#post-list a:hover,
#post-list .card a,
#post-list .card a:hover,
#post-list .card:hover a,
#post-list .card:hover .card-title,
#post-list .card:hover .card-text,
#post-list .card:hover .post-meta,
#post-list .card:hover .post-meta span {
  text-decoration: none !important;
}

/* Normalize homepage post-card alignment and remove leftover hover ghosting. */
#post-list,
#post-list > div,
#post-list .card-wrapper,
#post-list .card {
  transform: none !important;
  filter: none !important;
  backdrop-filter: none !important;
}

#post-list .card-wrapper,
#post-list .card-wrapper:hover,
#post-list .post-preview,
#post-list .post-preview:hover {
  background: transparent !important;
  box-shadow: none !important;
  border: 0 !important;
}

#post-list .card,
#post-list a.card {
  margin-left: 0 !important;
  margin-right: 0 !important;
  box-shadow: none !important;
  transform: none !important;
}

#post-list .card:hover,
#post-list a.card:hover,
#post-list .card-wrapper:hover .card {
  box-shadow: none !important;
  transform: none !important;
}

/* Keep the Tags page compact and aligned. */
#tags {
  display: flex !important;
  flex-wrap: wrap !important;
  align-items: flex-start !important;
  justify-content: flex-start !important;
  gap: 0.65rem !important;
  max-width: 760px !important;
}

#tags .tag,
#access-tags .tag,
#access-tags a {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 0.32rem !important;
  margin: 0 !important;
  padding: 0.42rem 0.78rem !important;
  min-height: 1.95rem !important;
  border-radius: 999px !important;
  font-size: 0.84rem !important;
  font-weight: 600 !important;
  line-height: 1 !important;
  text-decoration: none !important;
  box-shadow: none !important;
  transform: none !important;
  white-space: nowrap !important;
}

#tags .tag span,
#access-tags .tag span,
#access-tags a span {
  font-size: 0.68rem !important;
  line-height: 1 !important;
  opacity: 0.72 !important;
  margin-left: 0.08rem !important;
}

#tags .tag:hover,
#access-tags .tag:hover,
#access-tags a:hover {
  text-decoration: none !important;
  box-shadow: none !important;
  transform: none !important;
}

/* Further Reading cards: remove offset hover overlay and underline artifacts. */
.post-tail-wrapper .card-wrapper,
.post-tail-wrapper .card-wrapper:hover,
.post-tail-wrapper .card,
.post-tail-wrapper .card:hover,
.post-tail-wrapper a.card,
.post-tail-wrapper a.card:hover,
.post-tail-wrapper .post-preview,
.post-tail-wrapper .post-preview:hover,
.related-posts .card,
.related-posts .card:hover,
#related-posts .card,
#related-posts .card:hover {
  transform: none !important;
  filter: none !important;
  backdrop-filter: none !important;
  box-shadow: none !important;
}

.post-tail-wrapper .card-wrapper,
.post-tail-wrapper .post-preview,
.related-posts .card-wrapper,
#related-posts .card-wrapper {
  background: transparent !important;
  border: 0 !important;
}

.post-tail-wrapper .card,
.post-tail-wrapper a.card,
.related-posts .card,
#related-posts .card {
  margin: 0 !important;
  height: 100% !important;
  border-radius: 8px !important;
}

.post-tail-wrapper a,
.post-tail-wrapper a:hover,
.post-tail-wrapper .card:hover a,
.post-tail-wrapper .card:hover .card-title,
.post-tail-wrapper .card:hover .card-text,
.related-posts a,
.related-posts a:hover,
#related-posts a,
#related-posts a:hover {
  text-decoration: none !important;
}

.post-tail-wrapper .row,
.related-posts .row,
#related-posts .row {
  align-items: stretch !important;
}