/* ==========================================================================
   brokoli.dev - Shared Design Tokens & Worklog Layout
   Pixel-perfect alignment with brokolidev.com header & container grid
   ========================================================================== */

:root {
  /* Light Theme */
  --bg-page: #fafafa;
  --bg-subtle: #ffffff;
  --bg-surface: #f4f4f5;
  --bg-surface-hover: #e4e4e7;
  
  --border-subtle: #e4e4e7;
  --border-default: #d4d4d8;
  --border-strong: #a1a1aa;
  
  --text-main: #18181b;
  --text-muted: #52525b;
  --text-faint: #71717a;
  
  --accent: #0d9488;
  --accent-light: #14b8a6;
  --accent-surface: #f0fdfa;
  --accent-border: rgba(13, 148, 136, 0.2);
  
  --timeline-line: #e4e4e7;
  --timeline-dot: #0d9488;
  
  --code-bg: #18181b;
  --code-text: #f4f4f5;
  --code-inline-bg: #f4f4f5;
  --code-inline-text: #0d9488;
  
  --font-sans: 'Inter var', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Menlo, Consolas, monospace;
}

html.dark {
  /* Dark Theme - Tailwind Zinc 950 (Identical to brokolidev.com) */
  --bg-page: #09090b;
  --bg-subtle: #121215;
  --bg-surface: #18181b;
  --bg-surface-hover: #27272a;
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-default: rgba(255, 255, 255, 0.14);
  --border-strong: rgba(255, 255, 255, 0.25);
  
  --text-main: #f4f4f5;
  --text-muted: #a1a1aa;
  --text-faint: #71717a;
  
  --accent: #14b8a6;
  --accent-light: #2dd4bf;
  --accent-surface: rgba(20, 184, 166, 0.1);
  --accent-border: rgba(45, 212, 191, 0.25);
  
  --timeline-line: #27272a;
  --timeline-dot: #14b8a6;
  
  --code-bg: #0c0c0e;
  --code-text: #f4f4f5;
  --code-inline-bg: #18181b;
  --code-inline-text: #2dd4bf;
}

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

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  background-color: var(--bg-page);
  color: var(--text-main);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.25s ease, color 0.25s ease;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ==========================================================================
   Header & Navbar - 100% Identical Grid & Metrics with brokolidev.com
   ========================================================================== */
.site-header {
  position: relative;
  z-index: 50;
  width: 100%;
}

.header-outer {
  max-width: 80rem; /* max-w-7xl */
  margin: 0 auto;
  padding: 1.5rem 1rem 0; /* pt-6 px-4 */
}

@media (min-width: 640px) {
  .header-outer {
    padding-left: 2rem; /* sm:px-8 */
    padding-right: 2rem;
  }
}

@media (min-width: 1024px) {
  .header-outer {
    padding-left: 3rem; /* lg:px-12 */
    padding-right: 3rem;
  }
}

.header-inner {
  max-width: 42rem; /* max-w-2xl */
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 1024px) {
  .header-inner {
    max-width: 56rem; /* lg:max-w-4xl */
  }
}

/* Brand Link */
.header-brand {
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: 1rem; /* text-base */
  letter-spacing: -0.025em; /* tracking-tight */
  color: var(--text-main);
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.header-brand:hover {
  opacity: 0.8;
}

.text-accent {
  color: var(--accent);
  font-weight: 600;
}

/* Navigation Links */
.header-nav {
  display: flex;
  align-items: center;
  gap: 0.375rem; /* gap-1.5 */
}

@media (min-width: 640px) {
  .header-nav {
    gap: 0.5rem; /* sm:gap-2 */
  }
}

/* Inactive nav button / link */
.nav-tab-inactive {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 0.75rem; /* px-3 py-1.5 */
  border-radius: 0.5rem; /* rounded-lg */
  font-size: 0.8125rem; /* text-xs in brokolidev */
  line-height: 1.5rem;
  font-weight: 500;
  text-decoration: none;
  color: #52525b; /* zinc-600 */
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.nav-tab-inactive:hover {
  color: #18181b; /* zinc-900 */
  background-color: #f4f4f5; /* zinc-100 */
}

html.dark .nav-tab-inactive {
  color: #a1a1aa; /* zinc-400 */
}

html.dark .nav-tab-inactive:hover {
  color: #f4f4f5; /* zinc-100 */
  background-color: rgba(39, 39, 42, 0.8); /* zinc-800/80 */
}

/* Active nav badge / pill */
.nav-tab-active {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 0.75rem; /* px-3 py-1.5 */
  border-radius: 0.5rem; /* rounded-lg */
  font-size: 0.8125rem; /* text-xs in brokolidev */
  line-height: 1.5rem;
  font-weight: 600;
  text-decoration: none;
  color: #0f766e; /* teal-700 */
  background-color: #f0fdfa; /* teal-50 */
  border: 1px solid rgba(153, 246, 228, 0.8); /* teal-200/80 */
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); /* shadow-2xs */
  transition: all 0.2s ease;
}

html.dark .nav-tab-active {
  color: #5eead4; /* teal-300 */
  background-color: rgba(19, 78, 74, 0.4); /* teal-950/40 */
  border-color: rgba(20, 184, 166, 0.3); /* teal-500/30 */
}

/* Language Toggle Button (Positioned next to Expand All) */
.year-heading-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.lang-toggle-btn {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  padding: 0.25rem 0.55rem;
  border-radius: 0.375rem;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  color: var(--text-faint);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  user-select: none;
}

.lang-toggle-btn:hover {
  border-color: var(--border-default);
  background: var(--bg-surface-hover);
  color: var(--text-main);
}

.lang-toggle-opt {
  padding: 0.1rem 0.35rem;
  border-radius: 0.25rem;
  transition: all 0.15s ease;
}

.lang-toggle-sep {
  opacity: 0.35;
  font-weight: 400;
  margin: 0 0.05rem;
}

/* Toggle highlights based on active html[data-lang] */
html[data-lang="ko"] .lang-toggle-btn .lang-opt-ko,
html:not([data-lang="en"]) .lang-toggle-btn .lang-opt-ko {
  color: var(--accent);
  background: rgba(20, 184, 166, 0.15);
  font-weight: 700;
}

html[data-lang="ko"] .lang-toggle-btn .lang-opt-en,
html:not([data-lang="en"]) .lang-toggle-btn .lang-opt-en {
  color: var(--text-faint);
  font-weight: 400;
  opacity: 0.6;
}

html[data-lang="en"] .lang-toggle-btn .lang-opt-en {
  color: var(--accent);
  background: rgba(20, 184, 166, 0.15);
  font-weight: 700;
}

html[data-lang="en"] .lang-toggle-btn .lang-opt-ko {
  color: var(--text-faint);
  font-weight: 400;
  opacity: 0.6;
}

/* Strict Single Language Display Visibility Rules */
html[data-lang="ko"] .lang-en,
html:not([data-lang="en"]) .lang-en {
  display: none !important;
}

html[data-lang="en"] .lang-ko {
  display: none !important;
}

/* Theme Toggle Button - Exact metrics with brokolidev.com */
.theme-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem; /* h-8 w-8 */
  height: 2rem;
  border-radius: 0.5rem; /* rounded-lg */
  border: 1px solid #e4e4e7; /* border-zinc-200 */
  background-color: #ffffff;
  color: #52525b; /* zinc-600 */
  cursor: pointer;
  transition: all 0.2s ease;
}

.theme-btn:hover {
  transform: translateY(-2px);
  border-color: #d4d4d8; /* border-zinc-300 */
  color: #18181b; /* zinc-900 */
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.theme-btn:active {
  transform: scale(0.95);
}

html.dark .theme-btn {
  background-color: #18181b; /* zinc-900 */
  border-color: #27272a; /* zinc-800 */
  color: #a1a1aa; /* zinc-400 */
}

html.dark .theme-btn:hover {
  border-color: #3f3f46; /* zinc-700 */
  color: #f4f4f5; /* zinc-100 */
}

.theme-icon-sun {
  display: none;
  color: #fbbf24; /* text-amber-400 */
  font-size: 0.75rem;
}

.theme-icon-moon {
  display: block;
  color: #52525b;
  font-size: 0.75rem;
}

html.dark .theme-icon-sun {
  display: block;
}

html.dark .theme-icon-moon {
  display: none;
}

/* ==========================================================================
   Ambient Background Light Effects (Identical to brokolidev.com)
   ========================================================================== */
.ambient-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -10;
  overflow: hidden;
}

.ambient-blob-1 {
  position: absolute;
  top: -9rem; /* -top-36 */
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 450px;
  background: radial-gradient(circle, rgba(45, 212, 191, 0.2), rgba(99, 102, 241, 0.15), transparent);
  filter: blur(48px);
  border-radius: 9999px;
  animation: floatSlow 14s ease-in-out infinite;
}

html.dark .ambient-blob-1 {
  background: radial-gradient(circle, rgba(20, 184, 166, 0.1), rgba(6, 182, 212, 0.05), transparent);
}

.ambient-blob-2 {
  position: absolute;
  top: 24rem; /* top-96 */
  right: -6rem; /* -right-24 */
  width: 480px;
  height: 360px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15), rgba(168, 85, 247, 0.1), transparent);
  filter: blur(48px);
  border-radius: 9999px;
  animation: floatReverse 16s ease-in-out infinite;
}

html.dark .ambient-blob-2 {
  background: radial-gradient(circle, rgba(99, 102, 241, 0.1), transparent);
}

@keyframes floatSlow {
  0%, 100% {
    transform: translateX(-50%) translate(0, 0) scale(1);
  }
  50% {
    transform: translateX(-50%) translate(30px, -20px) scale(1.08);
  }
}

@keyframes floatReverse {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(-25px, 25px) scale(0.95);
  }
}

/* ==========================================================================
   Main Content Layout - Exactly Aligned to 56rem (lg:max-w-4xl) Grid
   ========================================================================== */
.main-wrapper {
  flex: 1 1 auto;
}

.main-outer {
  max-width: 80rem; /* max-w-7xl */
  margin: 0 auto;
  padding: 1.5rem 1rem 4rem; /* mt-6 */
}

@media (min-width: 640px) {
  .main-outer {
    padding: 2.5rem 2rem 4rem; /* sm:mt-10 sm:px-8 */
  }
}

@media (min-width: 1024px) {
  .main-outer {
    padding-left: 3rem; /* lg:px-12 */
    padding-right: 3rem;
  }
}

@media (min-width: 640px) {
  .main-outer {
    padding-left: 2rem; /* sm:px-8 */
    padding-right: 2rem;
  }
}

@media (min-width: 1024px) {
  .main-outer {
    padding-left: 3rem; /* lg:px-12 */
    padding-right: 3rem;
  }
}

.main-inner {
  max-width: 42rem; /* max-w-2xl */
  margin: 0 auto;
}

@media (min-width: 1024px) {
  .main-inner {
    max-width: 56rem; /* lg:max-w-4xl */
  }
}

/* ==========================================================================
   Worklog Timeline & Accordion Components
   ========================================================================== */
.year-block {
  margin-bottom: 3rem;
}

.year-heading {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.year-title {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.year-count-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.1rem 0.45rem;
  border-radius: 9999px;
  background: var(--bg-surface);
  color: var(--text-faint);
  border: 1px solid var(--border-subtle);
}

.year-divider {
  flex-grow: 1;
  height: 1px;
  background: var(--border-subtle);
}

.toggle-all-btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.6rem;
  border-radius: 0.375rem;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.toggle-all-btn:hover {
  color: var(--text-main);
  border-color: var(--border-default);
  background: var(--bg-surface-hover);
}

/* Timeline Left Vertical Line */
.entries-list {
  position: relative;
  padding-left: 1.75rem;
  border-left: 2px solid var(--timeline-line);
  margin-left: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Individual Log Item */
.log-item {
  position: relative;
  border: 1px solid var(--border-subtle);
  border-radius: 0.5rem;
  background: var(--bg-subtle);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.log-item:hover {
  border-color: var(--border-default);
  background: var(--bg-surface);
}

.log-item.is-open {
  border-color: var(--accent-border);
  background: var(--bg-surface);
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.08);
}

html.dark .log-item.is-open {
  box-shadow: 0 4px 24px -2px rgba(0, 0, 0, 0.4);
}

/* Timeline Dot */
.log-item::before {
  content: '';
  position: absolute;
  left: -2.35rem;
  top: 1.05rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--bg-page);
  border: 2px solid var(--timeline-dot);
  transition: transform 0.2s ease, background 0.2s ease;
  z-index: 2;
}

.log-item.is-open::before {
  background: var(--timeline-dot);
  transform: scale(1.3);
}

/* Clickable Summary Bar */
.log-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  cursor: pointer;
  user-select: none;
}

.log-summary-left {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  flex-wrap: wrap;
  flex-grow: 1;
}

.log-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}

.log-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.log-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  background: var(--bg-surface-hover);
  color: var(--text-faint);
  border: 1px solid var(--border-subtle);
}

.log-summary-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.log-readtime {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-faint);
}

.log-chevron {
  font-size: 0.75rem;
  color: var(--text-muted);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.log-item.is-open .log-chevron {
  transform: rotate(180deg);
  color: var(--accent);
}

/* Collapsible Content Area */
.log-content {
  display: none;
  padding: 0 1.25rem 1.25rem;
  border-top: 1px solid var(--border-subtle);
}

.log-item.is-open .log-content {
  display: block;
}

.log-meta-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
  margin-bottom: 0.85rem;
  border-bottom: 1px dashed var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-faint);
  font-family: var(--font-mono);
}

.log-permalink-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
}

.log-permalink-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* Prose Markdown Typography */
.prose-content {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-main);
}

.prose-content h2 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 1.5rem 0 0.65rem;
  color: var(--text-main);
}

.prose-content h3 {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 1.15rem 0 0.45rem;
  color: var(--text-main);
}

.prose-content p {
  margin-bottom: 0.95rem;
  color: var(--text-muted);
}

.prose-content strong {
  color: var(--text-main);
  font-weight: 600;
}

.prose-content ul, .prose-content ol {
  margin: 0.65rem 0 0.95rem 1.25rem;
  color: var(--text-muted);
}

.prose-content li {
  margin-bottom: 0.3rem;
}

.prose-content blockquote {
  margin: 1.15rem 0;
  padding: 0.65rem 1rem;
  border-left: 3px solid var(--accent);
  background: var(--bg-surface);
  border-radius: 0 4px 4px 0;
  font-style: italic;
  color: var(--text-main);
}

.prose-content code:not(pre code) {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--code-inline-bg);
  padding: 0.15rem 0.35rem;
  border-radius: 4px;
  color: var(--code-inline-text);
  border: 1px solid var(--border-subtle);
}

.prose-content pre {
  margin: 1.15rem 0;
  background: var(--code-bg);
  color: var(--code-text);
  border-radius: 6px;
  padding: 0.95rem 1.15rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.55;
  border: 1px solid var(--border-subtle);
  position: relative;
}

.prose-content pre code {
  background: transparent;
  padding: 0;
  border: none;
  font-family: inherit;
  color: inherit;
}

/* Footer */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-subtle);
  padding: 2rem 0;
}

.footer-inner {
  max-width: 42rem;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-faint);
  text-align: center;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .footer-inner {
    padding: 0 2rem;
  }
}

@media (min-width: 1024px) {
  .footer-inner {
    max-width: 56rem;
    padding: 0 3rem;
  }
}

/* Mobile Tweaks */
@media (max-width: 640px) {
  .entries-list {
    padding-left: 1.25rem;
    margin-left: 0.25rem;
  }
  
  .log-item::before {
    left: -1.75rem;
  }
  
  .log-summary {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
  }
  
  .log-summary-right {
    width: 100%;
    justify-content: space-between;
  }
}

/* AI Translation Disclaimer Notice */
.ai-disclaimer {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 0.625rem 0.875rem;
  margin-bottom: 1.5rem;
  border-radius: 0.5rem;
  font-size: 0.8125rem;
  line-height: 1.55;
  background-color: rgba(244, 244, 245, 0.7);
  border: 1px dashed rgba(161, 161, 170, 0.45);
  color: #52525b;
}

html.dark .ai-disclaimer {
  background-color: rgba(24, 24, 27, 0.6);
  border-color: rgba(63, 63, 70, 0.6);
  color: #a1a1aa;
}

.ai-disclaimer-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.15rem 0.45rem;
  border-radius: 0.25rem;
  background-color: rgba(14, 165, 233, 0.1);
  color: #0284c7;
  white-space: nowrap;
}

html.dark .ai-disclaimer-badge {
  background-color: rgba(56, 189, 248, 0.15);
  color: #38bdf8;
}

.ai-disclaimer-text {
  flex: 1;
}