/* ═══════════════════════════════════════════════════════════════════════════
   🎨 Ravi E - personal website design language (inspired by carteakey.dev)
   ═══════════════════════════════════════════════════════════════════════════ */

/* Font configuration */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;600;700;800&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;700&display=swap');

:root {
  --zen-paper: #fbfaf6;
  --zen-dark: #141414;
  --accent-color: #14b8a6; /* Selective emerald/teal */
  --border-color-light: rgb(210, 205, 195, 0.9);
  --border-color-dark: rgb(63, 63, 70, 0.95);
  
  --font-sans: 'Plus Jakarta Sans', sans-serif;
  --font-serif: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --background: var(--zen-paper);
  --text-color: rgb(17, 24, 39);
  --border-color: var(--border-color-light);
  --accent-subtle: rgba(20, 184, 166, 0.1);
}

.dark {
  --background: var(--zen-dark);
  --text-color: rgb(228, 228, 231);
  --border-color: var(--border-color-dark);
  --accent-subtle: rgba(20, 184, 166, 0.2);
}

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

html {
  font-size: 92.5%;
  background-color: var(--background);
  color: var(--text-color);
  transition: background-color 150ms ease, color 150ms ease;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-serif);
  font-size: 1.12rem;
  line-height: 1.65;
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Base Headings & Links */
a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--border-color);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color 120ms ease, text-decoration-color 120ms ease;
}

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

/* Dense Editorial Layout Structure */
header {
  border-bottom: 1px solid var(--border-color);
  padding: 1.5rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
}

header nav a {
  text-decoration: none;
}

header nav a:hover,
header nav a.active {
  color: var(--accent-color);
}

main {
  padding: 3rem 0;
}

footer {
  border-top: 1px solid var(--border-color);
  padding: 2rem 0 3rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: rgb(115, 115, 115);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer-links a {
  text-decoration: none;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Shared Primitives (carteakey.dev) */
.editorial-kicker {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-color);
  margin-bottom: 0.5rem;
}

.editorial-title {
  font-family: var(--font-sans);
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.editorial-title-link {
  text-decoration: none;
}

.editorial-support {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text-color);
  opacity: 0.9;
}

.editorial-meta-link {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  font-weight: 700;
  color: var(--accent-color);
}

/* Card and Surface components */
.surface {
  border: 1px solid var(--border-color);
  background-color: rgba(251, 250, 246, 0.4);
  border-radius: 0.12rem;
  padding: 1.5rem;
  transition: border-color 150ms ease, background-color 150ms ease;
}

.dark .surface {
  background-color: rgba(20, 20, 20, 0.4);
}

.surface-hover {
  position: relative;
  cursor: pointer;
}

.surface-hover:hover {
  border-color: var(--accent-color);
  background-color: var(--accent-subtle);
}

/* Make entire surface-hover card clickable using pseudo-element overlay */
.surface-hover .editorial-title-link::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1;
}

/* Ensure secondary links inside clickable card are clickable on top of overlay */
.surface-hover a:not(.editorial-title-link),
.surface-hover button {
  position: relative;
  z-index: 2;
}

/* Lists and Feeds (Dense layout) */
.feed-list {
  border-top: 1px solid var(--border-color);
  margin-top: 1rem;
}

.feed-list-row {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--border-color);
  align-items: baseline;
  gap: 1rem;
}

.feed-list-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: rgb(115, 115, 115);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.feed-list-main {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.feed-list-title {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 700;
  text-decoration: none;
}

.feed-list-desc {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  opacity: 0.8;
  line-height: 1.4;
}

/* Timelines (for Notes list) */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 1.5rem;
}

.timeline-item {
  border-left: 1px solid var(--border-color);
  padding-left: 1.2rem;
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 0.5rem;
  width: 7px;
  height: 7px;
  background-color: var(--border-color);
  border-radius: 0.12rem;
}

.timeline-item:hover::before {
  background-color: var(--accent-color);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  color: rgb(115, 115, 115);
}

.timeline-content {
  margin-top: 0.3rem;
}

/* Badges / Tags */
.badge, .tag {
  display: inline-flex;
  align-items: center;
  border-radius: 0.12rem;
  border: 1px solid var(--border-color);
  padding: 0.15rem 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-color);
  background: transparent;
  text-decoration: none;
  white-space: nowrap;
}

.badge-accent {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

/* Hero Index grid styling */
.hero-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 2.5rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 768px) {
  .hero-container {
    grid-template-columns: 1fr 280px;
  }
}

.hero-box {
  margin-bottom: 0;
}

.hero-box h1 {
  font-family: var(--font-sans);
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 0.75rem;
}

.hero-box p {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  line-height: 1.5;
  opacity: 0.95;
  max-width: 60ch;
}

.hero-sidebar {
  border: 1px solid var(--border-color);
  background-color: rgba(251, 250, 246, 0.4);
  padding: 1.2rem;
  border-radius: 0.12rem;
  box-shadow: 3px 3px 0px var(--border-color);
}

.dark .hero-sidebar {
  background-color: rgba(20, 20, 20, 0.4);
}

.hero-sidebar-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-color);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.8rem;
  display: block;
}

.hero-sidebar-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.hero-sidebar-links li {
  line-height: 1.3;
}

.hero-sidebar-links li a {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
}

.hero-sidebar-links li a:hover {
  color: var(--accent-color);
}

.hero-sidebar-desc {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  opacity: 0.8;
  display: block;
  margin-top: 0.1rem;
}


/* Grid layout for site index */
.index-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

@media (min-width: 768px) {
  .index-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.grid-span-all {
  grid-column: 1 / -1;
}

/* Quote cards */
.quote-card {
  border-left: 2px solid var(--accent-color) !important;
  background-color: var(--accent-subtle) !important;
  border-radius: 0.12rem;
  padding: 1.2rem;
  margin: 1rem 0;
}

.quote-card p {
  font-style: italic;
  font-size: 1.1rem;
  line-height: 1.5;
  margin-bottom: 0.5rem;
}

.quote-card cite {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: rgb(115, 115, 115);
  font-style: normal;
  display: block;
  letter-spacing: 0.05em;
}

/* About status layout */
.status-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 1.5rem 0;
}

@media (min-width: 640px) {
  .status-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.status-card {
  padding: 1rem;
  text-align: center;
}

.status-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.6;
  margin-bottom: 0.2rem;
}

.status-value {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
}

/* Portfolio Showcase tabs / workbench */
.showcase-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: 0.12rem;
  min-height: 500px;
}

@media (min-width: 768px) {
  .showcase-container {
    grid-template-columns: 200px 1fr;
  }
}

.showcase-sidebar {
  border-bottom: 1px solid var(--border-color);
  padding: 1rem;
  display: flex;
  flex-direction: row;
  overflow-x: auto;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

@media (min-width: 768px) {
  .showcase-sidebar {
    border-bottom: none;
    border-right: 1px solid var(--border-color);
    flex-direction: column;
    overflow-x: visible;
  }
}

.showcase-tab-btn {
  background: none;
  border: 1px solid var(--border-color);
  border-radius: 0.12rem;
  padding: 0.5rem 0.8rem;
  text-align: left;
  cursor: pointer;
  color: inherit;
  font: inherit;
  transition: all 120ms ease;
  white-space: nowrap;
}

@media (min-width: 768px) {
  .showcase-tab-btn {
    border: none;
    width: 100%;
    padding: 0.6rem 0.8rem;
  }
}

.showcase-tab-btn:hover,
.showcase-tab-btn.active {
  background-color: var(--accent-subtle);
  color: var(--accent-color);
  border-color: var(--accent-color);
}

.showcase-content-area {
  padding: 1.5rem;
}

.showcase-pane {
  display: none;
}

.showcase-pane.active {
  display: block;
}

/* Prose/Markdown Article Styles */
.prose {
  font-family: var(--font-serif);
  font-size: 1.12rem;
  line-height: 1.7;
}

.prose p {
  margin-bottom: 1.25rem;
}

.prose h1, .prose h2, .prose h3, .prose h4 {
  font-family: var(--font-sans);
  font-weight: 800;
  color: var(--text-color);
  margin-top: 2rem;
  margin-bottom: 0.8rem;
  line-height: 1.2;
}

.prose h1 { font-size: 2rem; }
.prose h2 { font-size: 1.5rem; border-bottom: 1px solid var(--border-color); padding-bottom: 0.3rem; }
.prose h3 { font-size: 1.2rem; }

.prose ul, .prose ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.prose li {
  margin-bottom: 0.4rem;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-family: var(--font-sans);
  font-size: 0.9rem;
}

.prose th, .prose td {
  border: 1px solid var(--border-color);
  padding: 0.6rem 0.8rem;
  text-align: left;
}

.prose th {
  background-color: var(--accent-subtle);
  font-weight: 700;
}

.prose blockquote {
  border-left: 3px solid var(--accent-color);
  padding-left: 1rem;
  font-style: italic;
  margin: 1.5rem 0;
  opacity: 0.9;
}

.prose pre {
  background-color: rgba(0, 0, 0, 0.03);
  border: 1px solid var(--border-color);
  padding: 1rem;
  overflow-x: auto;
  border-radius: 0.12rem;
  margin: 1.5rem 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.dark .prose pre {
  background-color: rgba(255, 255, 255, 0.03);
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background-color: rgba(0, 0, 0, 0.04);
  padding: 0.15rem 0.3rem;
  border-radius: 0.12rem;
}

.dark .prose code {
  background-color: rgba(255, 255, 255, 0.08);
}

.prose pre code {
  background-color: transparent;
  padding: 0;
  font-size: inherit;
}

/* Callout Box (custom editorial tag styled clean) */
.callout-box {
  background-color: var(--accent-subtle);
  border: 1px solid var(--accent-color);
  border-radius: 0.12rem;
  padding: 1rem;
  margin: 1.5rem 0;
}

.callout-title {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-color);
  margin-bottom: 0.4rem;
}

.callout-box p {
  margin-bottom: 0 !important;
}

/* Utilities */
.text-right { text-align: right; }
.hidden { display: none; }
.theme-btn {
  background: none;
  border: 1px solid var(--border-color);
  border-radius: 0.12rem;
  padding: 0.3rem 0.6rem;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  color: inherit;
}
.theme-btn:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}
.theme-btn .sun-icon { display: none; }
.theme-btn .moon-icon { display: block; }
.dark .theme-btn .sun-icon { display: block; }
.dark .theme-btn .moon-icon { display: none; }

/* Neofetch terminal block */
.terminal-window {
  font-family: var(--font-mono);
  background-color: #1e1e2e;
  color: #cdd6f4;
  border: 1px solid #313244;
  border-radius: 0.12rem;
  overflow: hidden;
  margin: 1.5rem 0 2.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.terminal-titlebar {
  background-color: #11111b;
  border-bottom: 1px solid #313244;
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.terminal-dot.red { background-color: #f38ba8; }
.terminal-dot.yellow { background-color: #f9e2af; }
.terminal-dot.green { background-color: #a6e3a1; }

.terminal-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .terminal-body {
    flex-direction: row;
    align-items: flex-start;
    gap: 2rem;
  }
}

.terminal-logo {
  color: #89b4fa;
  font-weight: bold;
  line-height: 1.1;
  white-space: pre;
  font-size: 0.8rem;
}

.terminal-info {
  flex: 1;
  min-width: 0;
}

.terminal-header {
  font-weight: 700;
  color: #a6e3a1;
  margin-bottom: 0.2rem;
  font-size: 0.95rem;
}

.terminal-divider {
  color: #585b70;
  margin-bottom: 0.5rem;
}

.terminal-row {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  font-size: 0.85rem;
  line-height: 1.45;
  margin-bottom: 0.25rem;
}

.terminal-label {
  font-weight: bold;
  color: #89b4fa;
}

.terminal-color-palette {
  display: flex;
  gap: 0.4rem;
  margin-top: 1.2rem;
}

.color-block {
  width: 18px;
  height: 18px;
  border-radius: 0.12rem;
}

/* Profile Photo Frame */
.profile-frame {
  border: 1px solid var(--border-color);
  background-color: var(--background);
  padding: 0.6rem;
  border-radius: 0.12rem;
  display: block;
  margin: 1.5rem auto;
  max-width: 320px;
  box-shadow: 4px 4px 0px var(--border-color);
}

.profile-frame img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--border-color);
  border-radius: 0.05rem;
}

@media (min-width: 640px) {
  .profile-frame {
    float: right;
    margin: 0.5rem 0 1.5rem 2rem;
    max-width: 280px;
  }
}

/* Home About Teaser split layout */
.about-teaser-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: center;
}

@media (min-width: 640px) {
  .about-teaser-block {
    grid-template-columns: 260px 1fr;
  }
}

.home-profile-frame {
  border: 1px solid var(--border-color);
  background-color: var(--background);
  padding: 0.5rem;
  border-radius: 0.12rem;
  box-shadow: 4px 4px 0px var(--border-color);
  max-width: 100%;
  overflow: hidden;
}

.home-profile-frame img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  object-position: right center; /* focus on you and the scenic view */
  display: block;
  border: 1px solid var(--border-color);
  border-radius: 0.05rem;
}

/* Reading shelf typography and frame structure */
.currently-reading-card {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  padding: 1.5rem;
}

@media (max-width: 640px) {
  .currently-reading-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

.book-cover-frame {
  flex-shrink: 0;
  border: 1px solid var(--border-color);
  box-shadow: 3px 3px 0px var(--border-color);
  background-color: var(--background);
  padding: 0.25rem;
  border-radius: 0.12rem;
  width: 110px;
}

.book-cover-frame img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border-color);
  border-radius: 0.05rem;
}

.finished-book-row {
  display: flex;
  gap: 1.2rem;
  align-items: flex-start;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--border-color);
}

.finished-book-cover {
  flex-shrink: 0;
  width: 55px;
  border: 1px solid var(--border-color);
  box-shadow: 2px 2px 0px var(--border-color);
  background-color: var(--background);
  padding: 0.15rem;
  border-radius: 0.12rem;
}

.finished-book-cover img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border-color);
  border-radius: 0.05rem;
}

/* Post & Project Image Frame and Caption */
.post-image-frame {
  border: 1px solid var(--border-color);
  background-color: var(--background);
  padding: 0.6rem;
  border-radius: 0.12rem;
  display: block;
  margin: 2rem auto;
  max-width: 100%;
  box-shadow: 4px 4px 0px var(--border-color);
}

.post-image-frame img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--border-color);
  border-radius: 0.05rem;
}

.post-image-caption {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-color);
  opacity: 0.8;
  margin-top: 0.6rem;
  text-align: center;
  border-top: 1px solid var(--border-color);
  padding-top: 0.4rem;
  display: block;
}

/* Lightbox Popup styles */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(20, 20, 20, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.25s;
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-content {
  position: relative;
  max-width: 90%;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: scale(0.95);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.lightbox.active .lightbox-content {
  transform: scale(1);
}

.lightbox-image {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 0.12rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.lightbox-caption {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: #fff;
  opacity: 0.9;
  margin-top: 1rem;
  text-align: center;
  max-width: 100%;
  line-height: 1.4;
}

.lightbox-close {
  position: absolute;
  top: -2.5rem;
  right: 0;
  background: none;
  border: none;
  color: #fff;
  font-size: 2.2rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.15s ease, transform 0.15s ease;
  padding: 0.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-close:hover {
  opacity: 1;
  transform: scale(1.1);
}

/* Make images inside prose look clickable */
.prose img {
  cursor: zoom-in;
  transition: opacity 0.2s ease;
}

.prose img:hover {
  opacity: 0.95;
}