/* Editorial Posts Index - Minimal & Classy */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Crimson+Text:ital,wght@0,400;0,600;0,700;1,400;1,600&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* CSS Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -moz-text-size-adjust: none;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
}

body,
h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd {
  margin-block-end: 0;
}

ul[role='list'],
ol[role='list'] {
  list-style: none;
}

body {
  min-height: 100vh;
  line-height: 1.5;
}

h1,
h2,
h3,
h4,
button,
input,
label {
  line-height: 1.1;
}

h1,
h2,
h3,
h4 {
  text-wrap: balance;
}

a:not([class]) {
  text-decoration-skip-ink: auto;
  color: currentColor;
}

img,
picture {
  max-width: 100%;
  display: block;
}

input,
button,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

textarea:not([rows]) {
  min-height: 10em;
}

:target {
  scroll-margin-block: 5ex;
}

/* Design System - Editorial Minimalism */
:root {
  /* Color Palette - Warm, Editorial */
  --color-paper: #FFFEF9;
  --color-ink: #1C1917;
  --color-ink-light: #78716C;
  --color-ink-lighter: #A8A29E;
  --color-accent: #0F766E;
  --color-accent-light: #CCFBF1;
  --color-accent-dark: #134E4A;
  --color-border: rgba(28, 25, 23, 0.06);
  --color-shadow-sm: rgba(28, 25, 23, 0.04);
  --color-shadow-md: rgba(28, 25, 23, 0.08);
  --color-shadow-lg: rgba(28, 25, 23, 0.12);

  /* Typography */
  --font-serif: 'Crimson Text', 'Georgia', 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Consolas', monospace;

  /* Spacing - 8px base grid */
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Sizes */
  --size-prose: 65ch;
  --size-content: 42rem;
  --size-full: 100%;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-paper: #000000;
    --color-ink: #FAFAF9;
    --color-ink-light: #A8A29E;
    --color-ink-lighter: #78716C;
    --color-accent: #5EEAD4;
    --color-accent-light: rgba(94, 234, 212, 0.1);
    --color-accent-dark: #99F6E4;
    --color-border: rgba(250, 250, 249, 0.06);
    --color-shadow-sm: rgba(0, 0, 0, 0.2);
    --color-shadow-md: rgba(0, 0, 0, 0.3);
    --color-shadow-lg: rgba(0, 0, 0, 0.4);
  }
}

/* Base Styles */
html {
  /* Fluid base font size: 16px at 320px viewport to 18px at 1024px */
  font-size: clamp(1rem, 0.875rem + 0.3125vw, 1.125rem);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-paper);
  color: var(--color-ink);
  line-height: 1.5;
  margin: 0;
  padding: 0;
  transition: var(--transition);

  /* OpenType features */
  font-feature-settings:
    "kern" 1,
    "liga" 1,
    "calt" 1;
}

/* Typography */
.serif {
  font-family: var(--font-serif);
}

/* Navigation */
.nav-bar {
  position: sticky;
  top: 0;
  background-color: var(--color-paper);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.nav-container {
  max-width: var(--size-content);
  margin: 0 auto;
  padding: var(--space-md) var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-title h1 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
  color: var(--color-ink);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.nav-links {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}

.nav-links a {
  color: var(--color-ink-light);
  text-decoration: none;
  transition: var(--transition);
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
}

.nav-links a:hover {
  color: var(--color-accent);
  background-color: var(--color-accent-light);
}

.nav-links svg,
.nav-links i {
  width: 18px;
  height: 18px;
  display: block;
}

/* Main Content */
main.profile {
  max-width: var(--size-content);
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-lg) var(--space-3xl);
}

/* Posts Section */
.blog-posts {
  margin: 0;
  padding: 0;
}

.posts-list-container {
  margin: 0;
}

.posts-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3xl);
}

/* Post Items */
.post-item {
  position: relative;
  opacity: 0;
  transform: translateY(20px);
  animation: slideIn 0.6s ease-out forwards;
  animation-delay: calc(var(--index, 0) * 0.1s);
}

@keyframes slideIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.post-item a {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: var(--transition-slow);
  padding: var(--space-lg);
  margin: calc(var(--space-lg) * -1);
  border-radius: var(--radius-md);
}

.post-item a:hover {
  background-color: var(--color-accent-light);
  transform: translateY(-2px);
}

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

.post-title {
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 1.125rem + 0.625vw, 1.75rem);
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 var(--space-sm) 0;
  color: var(--color-ink);
  transition: var(--transition);
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  font-size: 0.85rem;
  color: var(--color-ink-light);
  flex-wrap: wrap;
}

.post-meta time {
  font-family: var(--font-mono);
  font-style: normal;
  font-weight: 500;
  letter-spacing: 0.025em;
  /* Tabular numbers for dates */
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1, "zero" 1;
}

.tags {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.tag {
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.75rem;
  background-color: var(--color-accent-light);
  border-radius: 1rem;
  transition: var(--transition);
  letter-spacing: 0.02em;
}

.post-item:hover .tag {
  background-color: var(--color-accent);
  color: var(--color-paper);
}

.post-description {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-ink);
  margin: 0;
  opacity: 0.9;
  max-width: 66ch;
}

/* Link Post Indicator */
.is-link-post .post-title::after {
  content: '↗';
  display: inline-block;
  margin-left: var(--space-xs);
  font-size: 0.8em;
  color: var(--color-accent);
  transition: var(--transition);
}

.is-link-post:hover .post-title::after {
  transform: translate(2px, -2px);
}

.link-url {
  display: block;
  margin-top: var(--space-sm);
  font-size: 0.8rem;
  color: var(--color-ink-light);
  opacity: 0.7;
  font-style: italic;
}

/* PWA Styles */
#online-status {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  background-color: #ef4444;
  color: white;
  display: none;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

#online-status.offline {
  display: block;
}

#cache-refresh-notification {
  position: fixed;
  top: var(--space-lg);
  right: var(--space-lg);
  background-color: var(--color-accent);
  color: white;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  display: none;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Responsive Design */
@media (max-width: 768px) {
  /* Font size now fluid via clamp(), no need for breakpoint override */

  .nav-container {
    padding: var(--space-md) var(--space-md);
  }

  .nav-links {
    gap: var(--space-md);
  }

  main.profile {
    padding: var(--space-2xl) var(--space-md) var(--space-2xl);
  }

  .posts-list {
    gap: var(--space-2xl);
  }

  /* Post title now fluid via clamp() */

  .post-meta {
    gap: var(--space-sm);
  }
}

@media (max-width: 640px) {
  .nav-container {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .nav-links {
    justify-content: center;
  }

  main.profile {
    padding: var(--space-xl) var(--space-md) var(--space-xl);
  }

  /* Post title now fluid via clamp() */

  .post-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .post-item {
    animation: none;
    opacity: 1;
    transform: none;
  }
}

/* Focus States - WCAG 2.1 Enhanced */
*:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

.nav-links a:focus-visible,
.post-item a:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  .nav-bar,
  #online-status,
  #cache-refresh-notification {
    display: none;
  }

  main.profile {
    padding: 0;
  }

  .post-item a {
    padding: 0;
    margin: 0;
  }

  .post-item a:hover {
    background-color: transparent;
    transform: none;
  }
}