/* ============ MODERN TYPOGRAPHY & ANIMATIONS ============ */

/* Import modern fonts (2024) - replace Lora + Open Sans */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Poppins:wght@500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* Override root fonts with modern alternatives */
:root {
  /* Modern fonts: Inter + Poppins (2024) instead of Lora + Open Sans (2010) */
  --body-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', sans-serif;
  --header-font: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Modern spacing scale */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Modern shadow system */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
  
  /* Modern transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============ SMOOTH TRANSITIONS ============ */

/* Global smooth transitions for theme switching */
body,
html,
.navbar-custom,
.footer-custom,
.post-preview,
.card,
a,
button,
input,
textarea,
select {
  transition: 
    background-color var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

/* Smooth color scheme transition */
:root {
  transition: background-color var(--transition-slow), color var(--transition-slow);
}

/* ============ IMPROVED HOVER EFFECTS ============ */

/* Link hover with underline animation */
a {
  position: relative;
  text-decoration: none;
  transition: color var(--transition-base);
}

a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: currentColor;
  transition: width var(--transition-base);
}

a:hover::after,
a:focus::after {
  width: 100%;
}

/* Disable underline for navbar and certain links */
.navbar-custom a,
.nav-link,
.taxonomy-btn,
.btn,
.post-preview a {
  position: static;
}

.navbar-custom a::after,
.nav-link::after,
.taxonomy-btn::after,
.btn::after,
.post-preview a::after {
  display: none;
}

/* ============ BUTTON IMPROVEMENTS ============ */

button,
.btn,
input[type="button"],
input[type="submit"],
input[type="reset"] {
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

button:hover,
.btn:hover,
input[type="button"]:hover,
input[type="submit"]:hover,
input[type="reset"]:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

button:active,
.btn:active,
input[type="button"]:active,
input[type="submit"]:active,
input[type="reset"]:active {
  transform: translateY(0);
  box-shadow: var(--shadow-md);
}

/* ============ CARD & BOX IMPROVEMENTS ============ */

.card,
.post-preview,
.taxonomy-section {
  transition: 
    box-shadow var(--transition-base),
    transform var(--transition-base),
    border-color var(--transition-base);
  border-radius: 0.5rem;
}

.card:hover,
.post-preview:hover,
.taxonomy-section:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* ============ FORM IMPROVEMENTS ============ */

input,
textarea,
select {
  transition: all var(--transition-base);
  border-radius: 0.375rem;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(92, 167, 255, 0.1);
  border-color: var(--link-col);
  transform: scale(1.01);
}

/* ============ TYPOGRAPHY IMPROVEMENTS ============ */

/* Better line height for readability */
body {
  line-height: 1.6;
  letter-spacing: 0.3px;
}

h1, h2, h3, h4, h5, h6 {
  letter-spacing: 0.5px;
  font-weight: 700;
}

/* Improved heading hierarchy */
h1 {
  font-size: clamp(1.875rem, 5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.5px;
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.25px;
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 700;
}

h4 {
  font-size: 1.125rem;
  font-weight: 600;
}

p {
  font-weight: 400;
  letter-spacing: 0.25px;
}

/* Better readability for code */
code {
  font-family: 'JetBrains Mono', 'Fira Code', 'Monaco', 'Courier New', monospace;
  font-size: 0.9em;
  font-weight: 500;
}

/* ============ DARK MODE SMOOTH TRANSITIONS ============ */

:root[data-theme="dark"] {
  transition: 
    background-color var(--transition-slow),
    color var(--transition-slow),
    --page-col var(--transition-slow),
    --text-col var(--transition-slow),
    --navbar-col var(--transition-slow);
}

:root[data-theme="light"] {
  transition: 
    background-color var(--transition-slow),
    color var(--transition-slow),
    --page-col var(--transition-slow),
    --text-col var(--transition-slow),
    --navbar-col var(--transition-slow);
}

/* ============ SCROLL BEHAVIOR ============ */

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============ ACCESSIBILITY FOCUS STATES ============ */

:focus-visible {
  outline: 2px solid var(--link-col);
  outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--link-col);
  outline-offset: 2px;
}

/* ============ IMAGE IMPROVEMENTS ============ */

img {
  transition: filter var(--transition-base), transform var(--transition-base);
  border-radius: 0.375rem;
}

img:hover {
  filter: brightness(1.05);
}

/* ============ UTILITIES ============ */

.transition-fast {
  transition: all var(--transition-fast);
}

.transition-base {
  transition: all var(--transition-base);
}

.transition-slow {
  transition: all var(--transition-slow);
}

.shadow-sm {
  box-shadow: var(--shadow-sm);
}

.shadow-md {
  box-shadow: var(--shadow-md);
}

.shadow-lg {
  box-shadow: var(--shadow-lg);
}

.shadow-xl {
  box-shadow: var(--shadow-xl);
}