/*
Theme Name: IdeaUseful
Theme URI: https://ideauseful.com
Description: Dark 3D glassmorphism WordPress theme.
Version: 3.0.0
Text Domain: ideauseful
*/

/* ============================================================
   DESIGN TOKENS — 3D DARK SYSTEM
   ============================================================ */
:root {
  /* Backgrounds */
  --bg:          #06090F;
  --bg-2:        #0C1220;
  --bg-3:        #111827;
  --bg-card:     rgba(255,255,255,0.04);
  --bg-card-hover: rgba(255,255,255,0.07);
  --glass:       rgba(255,255,255,0.05);
  --glass-border: rgba(255,255,255,0.10);
  --glass-border-hover: rgba(255,255,255,0.20);

  /* Accent palette */
  --blue:        #4361EE;
  --blue-mid:    #3A0CA3;
  --blue-light:  #7B9EF8;
  --purple:      #7209B7;
  --purple-light:#B185F5;
  --cyan:        #4CC9F0;
  --cyan-dark:   #0096C7;
  --pink:        #F72585;

  /* Glow versions */
  --blue-glow:   rgba(67,97,238,0.40);
  --purple-glow: rgba(114,9,183,0.30);
  --cyan-glow:   rgba(76,201,240,0.25);
  --pink-glow:   rgba(247,37,133,0.25);

  /* Gradient shortcuts */
  --grad-primary: linear-gradient(135deg, var(--blue) 0%, var(--purple) 100%);
  --grad-accent:  linear-gradient(135deg, var(--cyan) 0%, var(--blue) 100%);
  --grad-hot:     linear-gradient(135deg, var(--pink) 0%, var(--purple) 100%);
  --grad-text:    linear-gradient(135deg, #ffffff 0%, var(--blue-light) 40%, var(--cyan) 100%);

  /* Text */
  --text-1:      #F0F4FF;
  --text-2:      rgba(240,244,255,0.70);
  --text-3:      rgba(240,244,255,0.45);
  --text-4:      rgba(240,244,255,0.25);

  /* Borders */
  --border:      rgba(255,255,255,0.08);
  --border-2:    rgba(255,255,255,0.14);

  /* Shadows — layered for depth */
  --shadow-xs:   0 2px 8px rgba(0,0,0,0.35);
  --shadow-sm:   0 4px 16px rgba(0,0,0,0.4);
  --shadow-md:   0 8px 32px rgba(0,0,0,0.5), 0 2px 8px rgba(0,0,0,0.3);
  --shadow-lg:   0 16px 48px rgba(0,0,0,0.6), 0 4px 16px rgba(0,0,0,0.4);
  --shadow-xl:   0 32px 80px rgba(0,0,0,0.7), 0 8px 32px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 0 1px var(--glass-border), 0 8px 32px rgba(0,0,0,0.5), 0 0 60px rgba(67,97,238,0.15);
  --shadow-blue: 0 4px 20px var(--blue-glow);
  --shadow-purple: 0 4px 20px var(--purple-glow);

  /* Border radius */
  --r-xs:   4px;
  --r-sm:   8px;
  --r-md:   12px;
  --r-lg:   16px;
  --r-xl:   20px;
  --r-2xl:  28px;
  --r-full: 9999px;

  /* Type */
  --font:      'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'Fira Code', 'Cascadia Code', monospace;

  /* Layout */
  --max-w:     1200px;
  --content-w: 720px;
  --gap:       24px;

  /* Motion */
  --t:      0.18s ease;
  --t-slow: 0.35s cubic-bezier(.23,1,.32,1);
  --t-spring: 0.5s cubic-bezier(.34,1.56,.64,1);
}

/* ============================================================
   RESET
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: rgba(67,97,238,.4); color: #fff; }

img, video { max-width: 100%; height: auto; display: block; }

a { color: var(--blue-light); text-decoration: none; transition: color var(--t); }
a:hover { color: var(--cyan); }

h1,h2,h3,h4,h5,h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-1);
  letter-spacing: -.025em;
}
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.625rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.125rem; }

p { margin-bottom: 1.25rem; color: var(--text-2); }
p:last-child { margin-bottom: 0; }
strong { color: var(--text-1); font-weight: 600; }
em { color: var(--blue-light); font-style: normal; }

ul, ol { padding-left: 1.5rem; margin-bottom: 1.25rem; }
li { margin-bottom: .3rem; color: var(--text-2); }

blockquote {
  border-left: 3px solid var(--blue);
  padding: 1.125rem 1.5rem;
  background: rgba(67,97,238,.08);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  margin: 1.75rem 0;
  color: var(--text-2);
  font-style: italic;
}

code {
  background: rgba(255,255,255,.07);
  border: 1px solid var(--border);
  padding: .125em .4em;
  border-radius: var(--r-xs);
  font-family: var(--font-mono);
  font-size: .875em;
  color: var(--cyan);
}
pre {
  background: rgba(0,0,0,.5);
  border: 1px solid var(--border);
  padding: 1.5rem;
  border-radius: var(--r-lg);
  overflow-x: auto;
  margin: 1.75rem 0;
  position: relative;
}
pre code { background: none; border: none; padding: 0; color: var(--text-2); }

hr { border: none; border-top: 1px solid var(--border); margin: 2rem 0; }

table { width: 100%; border-collapse: collapse; margin-bottom: 1.5rem; }
th { background: var(--bg-card); font-weight: 600; font-size: .875rem; text-transform: uppercase; letter-spacing: .04em; color: var(--text-3); }
th, td { padding: .875rem 1.25rem; text-align: left; border-bottom: 1px solid var(--border); }
tr:last-child td { border-bottom: none; }

/* ============================================================
   LAYOUT
   ============================================================ */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem; }
.container--narrow { max-width: var(--content-w); margin: 0 auto; padding: 0 1.5rem; }

.section     { padding: 5.5rem 0; }
.section--sm { padding: 3rem 0; }
.section--lg { padding: 8rem 0; }

.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: var(--gap); }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--gap); }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 1.25rem; }

@media (max-width: 1024px) { .grid-4 { grid-template-columns: repeat(2,1fr); } .grid-3 { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 600px)  { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

/* ============================================================
   GLASS CARD — the core 3D surface
   ============================================================ */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-glow);
  transition: transform var(--t-slow), box-shadow var(--t-slow), border-color var(--t);
  transform-style: preserve-3d;
  will-change: transform;
  position: relative;
}
/* Gradient top-edge shimmer */
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(255,255,255,.07) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.card > * { position: relative; z-index: 1; }

.card:hover {
  border-color: var(--glass-border-hover);
  box-shadow:
    0 0 0 1px rgba(255,255,255,.12),
    0 20px 60px rgba(0,0,0,.6),
    0 0 80px rgba(67,97,238,.15);
}

.card-thumb {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--bg-3);
  position: relative;
}
.card-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; filter: brightness(.85); }
.card:hover .card-thumb img { transform: scale(1.05); filter: brightness(1); }

.card-body { padding: 1.5rem; }

.card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: .875rem;
}
.card-meta time { font-size: .8125rem; color: var(--text-4); }
.card-cat {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--cyan);
}
.card h3 { font-size: 1.0625rem; line-height: 1.4; margin-bottom: .5rem; }
.card h3 a { color: var(--text-1); transition: color var(--t); }
.card h3 a:hover { color: var(--cyan); }
.card p { font-size: .9375rem; color: var(--text-3); margin-bottom: .875rem; }

.card-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.author-mini { display: flex; align-items: center; gap: .5rem; font-size: .8125rem; color: var(--text-3); }
.author-mini img { width: 26px; height: 26px; border-radius: 50%; object-fit: cover; border: 1px solid var(--border-2); }
.read-more {
  font-size: .8125rem;
  font-weight: 600;
  color: var(--blue-light);
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  transition: gap var(--t), color var(--t);
}
.read-more::after { content: '→'; }
.read-more:hover { color: var(--cyan); gap: .5rem; }

/* Featured horizontal card */
.card--featured { display: grid; grid-template-columns: 1fr 1fr; }
.card--featured .card-thumb { aspect-ratio: auto; min-height: 280px; }
.card--featured .card-body { padding: 2rem; display: flex; flex-direction: column; justify-content: center; }
.card--featured h3 { font-size: 1.375rem; }
@media (max-width: 768px) { .card--featured { grid-template-columns: 1fr; } .card--featured .card-thumb { min-height: 200px; aspect-ratio: 16/7; } }

/* ============================================================
   GRADIENT BORDER CARDS (special accent)
   ============================================================ */
.card--gradient-border {
  background: var(--bg-card);
  border: 1px solid transparent;
  background-clip: padding-box;
  position: relative;
}
.card--gradient-border::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: calc(var(--r-xl) + 1px);
  background: var(--grad-primary);
  z-index: -1;
  opacity: .5;
  transition: opacity var(--t-slow);
}
.card--gradient-border:hover::after { opacity: 1; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .6875rem 1.5rem;
  border-radius: var(--r-md);
  font-weight: 600;
  font-size: .9375rem;
  line-height: 1;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: all var(--t-slow);
  text-decoration: none;
  white-space: nowrap;
  font-family: var(--font);
  position: relative;
  overflow: hidden;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--t);
}
.btn:hover::after { background: rgba(255,255,255,.07); }

/* Primary — gradient */
.btn-primary {
  background: var(--grad-primary);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 20px var(--blue-glow), 0 1px 0 rgba(255,255,255,.15) inset;
}
.btn-primary:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--blue-glow), 0 1px 0 rgba(255,255,255,.15) inset;
}

/* Outline / glass */
.btn-outline {
  background: var(--glass);
  backdrop-filter: blur(10px);
  color: var(--text-1);
  border-color: var(--glass-border);
  box-shadow: var(--shadow-xs);
}
.btn-outline:hover {
  border-color: var(--glass-border-hover);
  color: var(--text-1);
  background: rgba(255,255,255,.09);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* Ghost */
.btn-ghost { background: transparent; color: var(--text-2); border-color: transparent; }
.btn-ghost:hover { background: var(--glass); color: var(--text-1); border-color: var(--border); }

/* Cyan accent */
.btn-cyan {
  background: transparent;
  color: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 0 20px var(--cyan-glow);
}
.btn-cyan:hover { background: var(--cyan); color: var(--bg); transform: translateY(-2px); box-shadow: 0 0 30px var(--cyan-glow); }

/* Sizes */
.btn-lg  { padding: .9375rem 2.25rem; font-size: 1.0625rem; border-radius: var(--r-lg); }
.btn-sm  { padding: .4375rem 1rem;    font-size: .875rem;   border-radius: var(--r-sm); }
.btn-xs  { padding: .3125rem .75rem;  font-size: .8125rem;  border-radius: var(--r-xs); }

/* Gradient text button */
.btn-text-gradient {
  background: transparent; border: none;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  padding: 0; font-weight: 700;
}

/* ============================================================
   PILLS / BADGES
   ============================================================ */
.pill {
  display: inline-flex;
  align-items: center;
  gap: .375rem;
  padding: .3125rem .875rem;
  border-radius: var(--r-full);
  font-size: .8125rem;
  font-weight: 500;
  background: var(--glass);
  color: var(--text-2);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
  transition: all var(--t);
}
.pill:hover { border-color: var(--border-2); color: var(--text-1); }
.pill--blue   { background: rgba(67,97,238,.15);  color: var(--blue-light);  border-color: rgba(67,97,238,.35); }
.pill--purple { background: rgba(114,9,183,.15); color: var(--purple-light); border-color: rgba(114,9,183,.35); }
.pill--cyan   { background: rgba(76,201,240,.12); color: var(--cyan);        border-color: rgba(76,201,240,.30); }
.pill--green  { background: rgba(16,185,129,.12); color: #34d399;            border-color: rgba(16,185,129,.30); }

.category-label {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--cyan);
}

/* ============================================================
   SECTION HEADERS
   ============================================================ */
.section-header { margin-bottom: 3.5rem; }
.section-header.centered { text-align: center; }
.section-header .eyebrow {
  display: inline-block;
  font-size: .8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--cyan);
  margin-bottom: .875rem;
}
.section-header h2 { margin-bottom: .75rem; }
.section-header p { color: var(--text-3); font-size: 1.0625rem; max-width: 560px; }
.section-header.centered p { margin-left: auto; margin-right: auto; }

/* Gradient heading */
.gradient-heading {
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   HEADER — dark glass
   ============================================================ */
#site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(6,9,15,.82);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--t), border-color var(--t);
}
#site-header.scrolled {
  border-bottom-color: var(--border-2);
  box-shadow: 0 4px 32px rgba(0,0,0,.5), 0 0 80px rgba(67,97,238,.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 2rem;
}

/* Logo */
.site-logo a { display: flex; align-items: center; gap: .625rem; text-decoration: none; }
.logo-mark {
  width: 34px; height: 34px;
  background: var(--grad-primary);
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
  flex-shrink: 0;
  box-shadow: 0 0 20px var(--blue-glow);
}
.logo-name { font-size: 1.125rem; font-weight: 800; color: var(--text-1); letter-spacing: -.03em; }
.logo-name em { font-style: normal; background: var(--grad-accent); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* Nav */
#primary-navigation ul { display: flex; align-items: center; gap: .125rem; list-style: none; padding: 0; margin: 0; }
#primary-navigation a {
  display: block;
  padding: .4375rem .875rem;
  border-radius: var(--r-sm);
  font-size: .9375rem;
  font-weight: 500;
  color: var(--text-3);
  transition: all var(--t);
}
#primary-navigation a:hover,
#primary-navigation .current-menu-item > a {
  color: var(--text-1);
  background: rgba(255,255,255,.07);
}

.header-cta { display: flex; align-items: center; gap: .75rem; flex-shrink: 0; }

/* Mobile toggle */
.menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: .5rem; background: none; border: none; border-radius: var(--r-sm); transition: background var(--t); }
.menu-toggle:hover { background: var(--glass); }
.menu-toggle span { display: block; width: 22px; height: 2px; background: var(--text-2); border-radius: 2px; transition: all .3s; }
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 860px) {
  .menu-toggle { display: flex; }
  .header-cta .btn { display: none; }
  #primary-navigation {
    display: none;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: rgba(6,9,15,.97);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border);
    padding: .75rem 1rem 1rem;
    box-shadow: 0 20px 40px rgba(0,0,0,.6);
  }
  #primary-navigation.open { display: block; }
  #primary-navigation ul { flex-direction: column; gap: .125rem; }
  #primary-navigation a { padding: .625rem 1rem; }
}

/* ============================================================
   HERO — 3D SCENE
   ============================================================ */
.hero {
  background: var(--bg);
  padding: 6rem 0 5rem;
  position: relative;
  overflow: hidden;
  min-height: 92vh;
  display: flex;
  align-items: center;
}

/* Mesh gradient orbs */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  will-change: transform;
}
.hero-orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(67,97,238,.35) 0%, transparent 70%);
  top: -150px; left: -150px;
  animation: orb-drift-1 12s ease-in-out infinite;
}
.hero-orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(114,9,183,.30) 0%, transparent 70%);
  bottom: -100px; right: -100px;
  animation: orb-drift-2 15s ease-in-out infinite;
}
.hero-orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(76,201,240,.18) 0%, transparent 70%);
  top: 40%; left: 45%;
  animation: orb-drift-3 10s ease-in-out infinite;
}
@keyframes orb-drift-1 { 0%,100%{transform:translate(0,0)} 50%{transform:translate(60px,40px)} }
@keyframes orb-drift-2 { 0%,100%{transform:translate(0,0)} 50%{transform:translate(-50px,-30px)} }
@keyframes orb-drift-3 { 0%,100%{transform:translate(0,0)} 33%{transform:translate(30px,-20px)} 66%{transform:translate(-20px,30px)} }

/* Grid overlay */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 75%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero-content { max-width: 560px; }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .375rem 1rem .375rem .375rem;
  background: rgba(67,97,238,.12);
  border: 1px solid rgba(67,97,238,.35);
  border-radius: var(--r-full);
  font-size: .8125rem;
  font-weight: 600;
  color: var(--blue-light);
  margin-bottom: 1.5rem;
  backdrop-filter: blur(8px);
}
.hero-eyebrow .ey-icon {
  width: 22px; height: 22px;
  background: var(--grad-primary);
  border-radius: var(--r-full);
  display: flex; align-items: center; justify-content: center;
  font-size: .75rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -.04em;
  color: var(--text-1);
  margin-bottom: 1.375rem;
}
.hero h1 .gradient-heading {
  display: block;
}

.hero-desc {
  font-size: 1.125rem;
  color: var(--text-3);
  line-height: 1.75;
  margin-bottom: 2.25rem;
  max-width: 480px;
}
.hero-desc p { color: var(--text-3); margin: 0; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 3rem; }

.hero-stats { display: flex; flex-wrap: wrap; gap: .75rem; }
.hero-stat {
  display: flex;
  flex-direction: column;
  padding: .875rem 1.25rem;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  backdrop-filter: blur(12px);
  transition: all var(--t);
}
.hero-stat:hover { border-color: var(--border-2); background: var(--bg-card-hover); }
.hero-stat strong { font-size: 1.5rem; font-weight: 800; letter-spacing: -.04em; background: var(--grad-accent); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-stat span { font-size: .75rem; color: var(--text-4); margin-top: .2rem; font-weight: 500; }

/* 3D Hero visual */
.hero-visual {
  perspective: 1000px;
  position: relative;
}
.hero-3d-scene {
  transform: perspective(1000px) rotateY(-12deg) rotateX(4deg);
  transform-style: preserve-3d;
  transition: transform .6s cubic-bezier(.23,1,.32,1);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.hero-3d-scene:hover {
  transform: perspective(1000px) rotateY(-6deg) rotateX(2deg);
}

/* Main floating card */
.hero-float-card {
  background: rgba(255,255,255,.06);
  backdrop-filter: blur(24px);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--r-2xl);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255,255,255,.04) inset,
    0 32px 80px rgba(0,0,0,.7),
    0 8px 24px rgba(67,97,238,.2);
  transform: translateZ(40px);
  position: relative;
}
.hero-float-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.08) 0%, transparent 50%);
  pointer-events: none;
}
.hfc-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
  display: flex;
  align-items: center;
  gap: .75rem;
}
.hfc-dots { display: flex; gap: 5px; }
.hfc-dots span { width: 10px; height: 10px; border-radius: 50%; }
.hfc-dots span:nth-child(1) { background: #FF5F57; }
.hfc-dots span:nth-child(2) { background: #FFBD2E; }
.hfc-dots span:nth-child(3) { background: #28C840; }
.hfc-title { font-size: .8125rem; font-weight: 600; color: var(--text-4); flex: 1; text-align: center; }
.hfc-body { padding: 1rem 1.25rem; }

.hfc-row {
  display: flex;
  align-items: center;
  gap: .875rem;
  padding: .75rem 0;
  border-bottom: 1px solid rgba(255,255,255,.05);
  transition: background var(--t);
}
.hfc-row:last-child { border-bottom: none; padding-bottom: 0; }
.hfc-icon {
  width: 40px; height: 40px;
  border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}
.hfc-info { flex: 1; min-width: 0; }
.hfc-name { font-size: .875rem; font-weight: 600; color: var(--text-1); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hfc-sub  { font-size: .75rem; color: var(--text-4); margin-top: .1rem; }
.hfc-badge {
  font-size: .6875rem; font-weight: 700;
  padding: .2rem .6rem;
  border-radius: var(--r-full);
  white-space: nowrap;
}
.hfc-badge--new    { background: rgba(76,201,240,.2);  color: var(--cyan); border: 1px solid rgba(76,201,240,.3); }
.hfc-badge--hot    { background: rgba(247,37,133,.2);  color: #fb7eb8;     border: 1px solid rgba(247,37,133,.3); }
.hfc-badge--guide  { background: rgba(16,185,129,.15); color: #34d399;     border: 1px solid rgba(16,185,129,.25); }

/* Mini cards row */
.hero-mini-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .875rem;
  transform: translateZ(20px);
}
.hero-mini-card {
  background: rgba(255,255,255,.05);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: var(--r-xl);
  padding: 1.125rem;
  box-shadow: 0 8px 24px rgba(0,0,0,.4);
  transition: all var(--t-slow);
}
.hero-mini-card:hover { border-color: rgba(255,255,255,.18); transform: translateY(-3px); }
.hmc-icon { width: 36px; height: 36px; border-radius: var(--r-md); display: flex; align-items: center; justify-content: center; font-size: 1.125rem; margin-bottom: .625rem; }
.hmc-title { font-size: .8125rem; font-weight: 700; color: var(--text-1); }
.hmc-sub   { font-size: .75rem; color: var(--text-4); margin-top: .1rem; }

/* Floating decorative badge */
.hero-floating-badge {
  position: absolute;
  bottom: -20px; left: -30px;
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--r-xl);
  padding: .875rem 1.25rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  box-shadow: 0 12px 32px rgba(0,0,0,.5);
  animation: badge-float 4s ease-in-out infinite;
  transform: translateZ(60px);
  z-index: 10;
}
@keyframes badge-float { 0%,100%{transform:translateY(0) translateZ(60px)} 50%{transform:translateY(-8px) translateZ(60px)} }
.hfb-icon { font-size: 1.5rem; }
.hfb-text strong { display: block; font-size: .875rem; font-weight: 700; color: var(--text-1); }
.hfb-text span   { font-size: .75rem; color: var(--text-4); }

@media (max-width: 900px) { .hero-inner { grid-template-columns: 1fr; } .hero-visual { display: none; } .hero { min-height: auto; padding: 5rem 0 4rem; } }
@media (max-width: 480px) { .hero-actions { flex-direction: column; align-items: flex-start; } }

/* ============================================================
   FEATURE / TOPIC CARDS — 3D tilt
   ============================================================ */
.feature-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--gap); }
@media (max-width: 1024px) { .feature-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 560px)  { .feature-grid { grid-template-columns: 1fr; } }

.feature-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-xl);
  padding: 1.875rem;
  box-shadow: var(--shadow-glow);
  transition: transform var(--t-slow), box-shadow var(--t-slow), border-color var(--t);
  transform-style: preserve-3d;
  will-change: transform;
  position: relative;
  overflow: hidden;
}
/* Top shimmer */
.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.06) 0%, transparent 55%);
  pointer-events: none;
}
/* Bottom glow */
.feature-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: var(--grad-primary);
  opacity: 0;
  transition: opacity var(--t-slow);
}
.feature-card:hover::after { opacity: .7; }
.feature-card:hover {
  border-color: rgba(255,255,255,.16);
  box-shadow: 0 0 0 1px rgba(255,255,255,.08), 0 24px 60px rgba(0,0,0,.6), 0 0 80px rgba(67,97,238,.12);
}

.feature-icon {
  width: 52px; height: 52px;
  border-radius: var(--r-lg);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  position: relative;
}
.feature-icon::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: 0 0 20px currentColor;
  opacity: .25;
}
.feature-card h3 { font-size: 1rem; font-weight: 700; color: var(--text-1); margin-bottom: .5rem; }
.feature-card p  { font-size: .9rem; color: var(--text-3); line-height: 1.65; margin: 0; }

/* ============================================================
   NEWSLETTER CTA BANNER
   ============================================================ */
.cta-banner {
  background: var(--grad-primary);
  border-radius: var(--r-2xl);
  padding: 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 0 1px rgba(255,255,255,.1) inset, 0 20px 60px var(--blue-glow), 0 40px 80px var(--purple-glow);
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(255,255,255,.12) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(255,255,255,.08) 0%, transparent 50%);
  pointer-events: none;
}
.cta-banner > * { position: relative; }
.cta-banner h2 { color: #fff; margin-bottom: .75rem; }
.cta-banner p  { color: rgba(255,255,255,.8); margin-bottom: 2rem; font-size: 1.0625rem; }
.newsletter-form { display: flex; gap: .75rem; max-width: 460px; margin: 0 auto; }
.newsletter-form input[type="email"] {
  flex: 1;
  padding: .8125rem 1.25rem;
  border-radius: var(--r-md);
  border: 1.5px solid rgba(255,255,255,.25);
  background: rgba(255,255,255,.12);
  color: #fff;
  font-size: .9375rem;
  font-family: var(--font);
  outline: none;
  backdrop-filter: blur(8px);
  transition: border-color var(--t);
}
.newsletter-form input::placeholder { color: rgba(255,255,255,.55); }
.newsletter-form input:focus { border-color: rgba(255,255,255,.6); }
.newsletter-form .btn { background: #fff; color: var(--blue); border-color: #fff; font-weight: 700; flex-shrink: 0; }
.newsletter-form .btn:hover { background: #EBF3FC; transform: translateY(-2px); color: var(--blue-mid); }
@media (max-width: 500px) { .cta-banner { padding: 2.5rem 1.5rem; } .newsletter-form { flex-direction: column; } }

/* ============================================================
   SIDEBAR — glass panels
   ============================================================ */
.content-sidebar-wrap { display: grid; grid-template-columns: 1fr 300px; gap: 2.5rem; align-items: start; }
@media (max-width: 1024px) { .content-sidebar-wrap { grid-template-columns: 1fr; } }

.sidebar { display: flex; flex-direction: column; gap: 1.5rem; }
.widget {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-glow);
  padding: 1.5rem;
}
.widget-title {
  font-size: .6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--text-4);
  margin-bottom: 1.125rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--border);
}
.widget ul { list-style: none; padding: 0; margin: 0; }
.widget ul li { padding: .5625rem 0; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.widget ul li:last-child { border-bottom: none; padding-bottom: 0; }
.widget ul li a { font-size: .9125rem; color: var(--text-2); transition: color var(--t); }
.widget ul li a:hover { color: var(--cyan); }
.widget ul li .count { font-size: .75rem; color: var(--text-4); background: var(--glass); border-radius: var(--r-full); padding: .125rem .5rem; border: 1px solid var(--border); }

/* ============================================================
   PAGE HEADER
   ============================================================ */
.page-header {
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  padding: 2.5rem 0;
}
.page-header h1 { font-size: 1.875rem; margin-bottom: .375rem; }
.page-header p  { color: var(--text-3); margin: 0; }

/* ============================================================
   SEARCH FORM
   ============================================================ */
.search-form { display: flex; max-width: 480px; }
.search-form input[type="search"] {
  flex: 1;
  padding: .75rem 1.125rem;
  border: 1.5px solid var(--border);
  border-right: none;
  border-radius: var(--r-md) 0 0 var(--r-md);
  font-size: .9375rem;
  font-family: var(--font);
  color: var(--text-1);
  background: var(--bg-card);
  outline: none;
  transition: border-color var(--t);
}
.search-form input:focus { border-color: var(--blue); }
.search-form button {
  padding: .75rem 1.25rem;
  background: var(--grad-primary);
  color: #fff;
  border: none;
  border-radius: 0 var(--r-md) var(--r-md) 0;
  font-weight: 600;
  font-size: .9375rem;
  font-family: var(--font);
  cursor: pointer;
  transition: opacity var(--t);
}
.search-form button:hover { opacity: .88; }

/* ============================================================
   SINGLE POST
   ============================================================ */
.article-hero {
  background: var(--bg-2);
  padding: 3rem 0 2.5rem;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.article-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--grad-primary);
  opacity: .5;
}
.article-breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: .375rem; font-size: .8125rem; color: var(--text-4); margin-bottom: 1.5rem; }
.article-breadcrumb a { color: var(--text-3); transition: color var(--t); }
.article-breadcrumb a:hover { color: var(--cyan); }
.bc-sep { color: var(--border-2); }
.article-breadcrumb span:last-child { color: var(--text-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 260px; }
.article-pills { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.25rem; }
.article-title { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 800; letter-spacing: -.04em; line-height: 1.15; max-width: 820px; margin-bottom: 1rem; }
.article-subtitle { font-size: 1.1875rem; color: var(--text-3); font-weight: 400; line-height: 1.65; max-width: 680px; margin-bottom: 1.5rem; }
.article-meta-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.article-author-chip { display: flex; align-items: center; gap: .75rem; }
.article-author-chip img { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; border: 2px solid var(--border-2); }
.aac-name { display: block; font-size: .9375rem; font-weight: 600; color: var(--text-1); }
.aac-name a { color: var(--text-1); transition: color var(--t); }
.aac-name a:hover { color: var(--cyan); }
.aac-date { display: block; font-size: .8125rem; color: var(--text-4); margin-top: .1rem; }
.article-share-inline { display: flex; align-items: center; gap: .5rem; }
.share-label { font-size: .8125rem; color: var(--text-4); font-weight: 500; margin-right: .25rem; }
.share-btn {
  display: inline-flex; align-items: center; gap: .375rem;
  padding: .4375rem .875rem;
  border-radius: var(--r-full);
  font-size: .8125rem; font-weight: 600; font-family: var(--font);
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--glass);
  backdrop-filter: blur(8px);
  color: var(--text-2);
  transition: all var(--t);
  text-decoration: none;
}
.share-btn:hover { border-color: var(--border-2); color: var(--text-1); background: var(--bg-card-hover); }
.share-btn--x:hover  { border-color: rgba(255,255,255,.3); color: #fff; }
.share-btn--li:hover { border-color: #0A66C2; color: #60A8F5; }
.article-meta-row .share-btn { padding: .4375rem .5625rem; }

.article-cover { padding: 1.5rem 0 0; background: var(--bg-2); }
.article-cover-img { width: 100%; border-radius: var(--r-2xl); box-shadow: 0 32px 80px rgba(0,0,0,.7), 0 0 0 1px var(--border); aspect-ratio: 16/6; object-fit: cover; }

.article-body-wrap { padding: 3rem 0 2rem; background: var(--bg); }
.article-layout { display: grid; grid-template-columns: 220px 1fr 260px; gap: 3rem; align-items: start; }

/* TOC */
.article-toc-col { position: relative; }
.toc-box { position: sticky; top: 90px; background: var(--bg-card); backdrop-filter: blur(20px); border: 1px solid var(--glass-border); border-radius: var(--r-xl); box-shadow: var(--shadow-glow); padding: 1.25rem; max-height: calc(100vh - 120px); overflow-y: auto; }
.toc-label { font-size: .6875rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--text-4); margin-bottom: 1rem; padding-bottom: .625rem; border-bottom: 1px solid var(--border); }
#toc-nav { display: flex; flex-direction: column; gap: .125rem; }
.toc-link { display: block; padding: .375rem .625rem; font-size: .8375rem; color: var(--text-3); border-radius: var(--r-sm); line-height: 1.45; transition: all var(--t); border-left: 2px solid transparent; }
.toc-link:hover { color: var(--cyan); background: rgba(76,201,240,.08); border-left-color: var(--cyan); }
.toc-link.active { color: var(--cyan); background: rgba(76,201,240,.08); border-left-color: var(--cyan); font-weight: 600; }
.toc-link--h3 { padding-left: 1.25rem; font-size: .8rem; }

/* Article sidebar */
.article-sidebar-col { position: relative; }
.article-sidebar-sticky { position: sticky; top: 90px; display: flex; flex-direction: column; gap: 1.25rem; }
.sidebar-newsletter { background: var(--bg-card); backdrop-filter: blur(20px); border: 1px solid var(--glass-border); border-radius: var(--r-xl); box-shadow: var(--shadow-glow); padding: 1.5rem; text-align: center; }
.sn-icon { font-size: 2rem; margin-bottom: .75rem; }
.sidebar-newsletter h4 { font-size: 1rem; margin-bottom: .375rem; color: var(--text-1); }
.sidebar-newsletter p  { font-size: .875rem; color: var(--text-3); margin-bottom: 1rem; }
.sn-form { display: flex; flex-direction: column; gap: .625rem; }
.sn-form input[type="email"] { padding: .625rem 1rem; border: 1.5px solid var(--border); border-radius: var(--r-sm); font-size: .875rem; font-family: var(--font); color: var(--text-1); background: var(--bg-3); outline: none; transition: border-color var(--t), box-shadow var(--t); }
.sn-form input::placeholder { color: var(--text-4); }
.sn-form input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-glow); }
.sidebar-related { background: var(--bg-card); backdrop-filter: blur(20px); border: 1px solid var(--glass-border); border-radius: var(--r-xl); box-shadow: var(--shadow-glow); overflow: hidden; }
.sr-label { font-size: .6875rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--text-4); padding: 1rem 1.25rem .75rem; border-bottom: 1px solid var(--border); }
.sr-item { display: flex; align-items: center; gap: .75rem; padding: .875rem 1.25rem; border-bottom: 1px solid var(--border); text-decoration: none; transition: background var(--t); }
.sr-item:last-child { border-bottom: none; }
.sr-item:hover { background: rgba(76,201,240,.05); }
.sr-thumb { width: 44px; height: 44px; border-radius: var(--r-sm); overflow: hidden; flex-shrink: 0; background: var(--bg-3); display: flex; align-items: center; justify-content: center; font-size: 1.25rem; border: 1px solid var(--border); }
.sr-thumb img { width: 100%; height: 100%; object-fit: cover; }
.sr-info { flex: 1; min-width: 0; }
.sr-title { display: block; font-size: .875rem; font-weight: 600; color: var(--text-1); line-height: 1.4; margin-bottom: .1875rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sr-item:hover .sr-title { color: var(--cyan); }
.sr-date { font-size: .75rem; color: var(--text-4); }

/* Entry content */
.article-content-col .entry-content { font-size: 1.0625rem; line-height: 1.85; color: var(--text-2); }
.article-content-col .entry-content h2 { font-size: 1.5rem; font-weight: 800; color: var(--text-1); letter-spacing: -.025em; margin-top: 3rem; margin-bottom: 1rem; padding-left: 1.125rem; border-left: 3px solid var(--blue); line-height: 1.3; }
.article-content-col .entry-content h2:first-child { margin-top: 0; }
.article-content-col .entry-content h3 { font-size: 1.2rem; font-weight: 700; color: var(--text-1); margin-top: 2.25rem; margin-bottom: .75rem; }
.article-content-col .entry-content p { margin-bottom: 1.5rem; color: var(--text-2); }
.article-content-col .entry-content blockquote { background: rgba(67,97,238,.08); border-left: 3px solid var(--blue); border-radius: 0 var(--r-lg) var(--r-lg) 0; padding: 1.5rem 1.75rem; margin: 2rem 0; font-style: italic; position: relative; }
.article-content-col .entry-content blockquote::before { content: '\201C'; position: absolute; top: -10px; left: 16px; font-size: 4rem; color: var(--blue); opacity: .25; font-family: Georgia, serif; line-height: 1; }
.article-content-col .entry-content blockquote p { color: var(--text-2); margin: 0; }
.article-content-col .entry-content ul li::marker { color: var(--cyan); }
.article-content-col .entry-content a { color: var(--blue-light); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(123,158,248,.35); }
.article-content-col .entry-content a:hover { color: var(--cyan); text-decoration-color: var(--cyan); }
.article-content-col .entry-content img { border-radius: var(--r-xl); box-shadow: var(--shadow-lg), 0 0 0 1px var(--border); margin: 2rem auto; }

.article-tags { display: flex; align-items: center; flex-wrap: wrap; gap: .625rem; margin-top: 2.5rem; padding-top: 1.75rem; border-top: 1px solid var(--border); }
.tags-heading { font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--text-4); margin-right: .25rem; }
.tag-pill { padding: .3125rem .875rem; background: var(--glass); border: 1px solid var(--border); border-radius: var(--r-full); font-size: .8125rem; color: var(--text-3); transition: all var(--t); }
.tag-pill:hover { background: rgba(76,201,240,.1); border-color: rgba(76,201,240,.35); color: var(--cyan); }
.article-share-footer { margin-top: 2rem; padding: 1.5rem; background: rgba(67,97,238,.08); border: 1px solid rgba(67,97,238,.25); border-radius: var(--r-xl); display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; font-size: .9375rem; font-weight: 500; color: var(--text-2); }
.article-share-footer .share-btn { background: var(--glass); }

/* Author card */
.article-author-section { background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 3rem 0; }
.author-card { display: flex; align-items: flex-start; gap: 1.5rem; max-width: 680px; }
.author-card img { width: 88px; height: 88px; border-radius: 50%; object-fit: cover; border: 2px solid var(--border-2); box-shadow: 0 0 0 4px rgba(67,97,238,.2); flex-shrink: 0; }
.author-card-label { display: block; font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--text-4); margin-bottom: .375rem; }
.author-card-name { font-size: 1.25rem; font-weight: 800; letter-spacing: -.02em; margin-bottom: .5rem; }
.author-card-name a { color: var(--text-1); transition: color var(--t); }
.author-card-name a:hover { color: var(--cyan); }
.author-card-bio { font-size: .9375rem; color: var(--text-3); line-height: 1.7; margin: 0; }
@media (max-width: 480px) { .author-card { flex-direction: column; } }

/* Post nav */
.article-nav-section { padding: 2.5rem 0; background: var(--bg); }
.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; margin: 0; }
.post-nav-card { display: flex; flex-direction: column; gap: .625rem; padding: 1.5rem; background: var(--bg-card); backdrop-filter: blur(20px); border: 1px solid var(--glass-border); border-radius: var(--r-xl); box-shadow: var(--shadow-glow); text-decoration: none; transition: all var(--t-slow); overflow: hidden; }
.post-nav-card:hover { border-color: rgba(255,255,255,.18); box-shadow: 0 0 0 1px rgba(255,255,255,.08), 0 24px 60px rgba(0,0,0,.6), 0 0 60px rgba(76,201,240,.1); transform: translateY(-3px); }
.post-nav-card--next { text-align: right; }
.pnc-dir { display: flex; align-items: center; gap: .25rem; font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--text-4); }
.post-nav-card--next .pnc-dir { justify-content: flex-end; }
.pnc-thumb { width: 100%; aspect-ratio: 16/7; border-radius: var(--r-md); overflow: hidden; }
.pnc-thumb img { width: 100%; height: 100%; object-fit: cover; filter: brightness(.8); }
.post-nav-card:hover .pnc-thumb img { filter: brightness(1); }
.pnc-title { font-size: 1rem; font-weight: 700; color: var(--text-1); line-height: 1.4; letter-spacing: -.015em; }
.post-nav-card:hover .pnc-title { color: var(--cyan); }
@media (max-width: 560px) { .post-nav { grid-template-columns: 1fr; } }

/* Related posts */
.related-posts-section { padding: 4rem 0; background: var(--bg-2); }
.related-posts-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 2rem; flex-wrap: wrap; gap: 1rem; }
.related-posts-header h2 { font-size: 1.625rem; margin: 0; }

/* Comments */
.comments-section { padding: 4rem 0; background: var(--bg); border-top: 1px solid var(--border); }
.comments-inner { max-width: 700px; }
.comments-area { margin-top: 0; }
.comments-title { font-size: 1.375rem; margin-bottom: 1.75rem; color: var(--text-1); }
.comment-list { list-style: none; padding: 0; margin: 0 0 2.5rem; }
.comment { margin-bottom: 1.25rem; }
.comment-body { background: var(--bg-card); backdrop-filter: blur(20px); border: 1px solid var(--glass-border); border-radius: var(--r-xl); box-shadow: var(--shadow-xs); padding: 1.375rem; }
.comment-author { display: flex; align-items: center; gap: .75rem; margin-bottom: .875rem; }
.comment-author img { width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--border-2); }
.comment-author .fn { font-weight: 600; font-size: .9375rem; color: var(--text-1); }
.comment-metadata { font-size: .8125rem; color: var(--text-4); }
.comment-text { font-size: .9375rem; color: var(--text-2); }
.comment-reply-link { font-size: .8125rem; font-weight: 600; color: var(--blue-light); }
.children { list-style: none; padding-left: 2rem; margin-top: 1rem; }
.comment-respond { background: var(--bg-card); backdrop-filter: blur(20px); border: 1px solid var(--glass-border); border-radius: var(--r-2xl); box-shadow: var(--shadow-glow); padding: 2rem; }
.comment-respond h3 { font-size: 1.25rem; margin-bottom: 1.375rem; color: var(--text-1); }
.comment-form label { display: block; font-size: .875rem; font-weight: 600; color: var(--text-3); margin-bottom: .375rem; }
.comment-form input[type="text"], .comment-form input[type="email"], .comment-form input[type="url"], .comment-form textarea { width: 100%; padding: .6875rem 1rem; border: 1.5px solid var(--border); border-radius: var(--r-sm); font-family: var(--font); font-size: .9375rem; color: var(--text-1); background: var(--bg-3); transition: border-color var(--t), box-shadow var(--t); margin-bottom: 1.125rem; outline: none; }
.comment-form input:focus, .comment-form textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-glow); }
.comment-form textarea { min-height: 130px; resize: vertical; }
.comment-form .submit { background: var(--grad-primary); color: #fff; border: none; padding: .6875rem 1.75rem; border-radius: var(--r-md); font-weight: 600; font-size: .9375rem; font-family: var(--font); cursor: pointer; transition: all var(--t); box-shadow: var(--shadow-blue); }
.comment-form .submit:hover { transform: translateY(-1px); box-shadow: 0 8px 24px var(--blue-glow); }

/* Article responsive */
@media (max-width: 1200px) { .article-layout { grid-template-columns: 1fr 260px; } .article-toc-col { display: none; } }
@media (max-width: 900px) { .article-layout { grid-template-columns: 1fr; } .article-sidebar-col { display: none; } }
@media (max-width: 640px) { .article-hero { padding: 2rem 0 1.75rem; } .article-title { font-size: 1.75rem; } .article-meta-row { flex-direction: column; align-items: flex-start; } .article-share-footer { flex-direction: column; } .author-card { align-items: center; text-align: center; } }

/* ============================================================
   PAGINATION
   ============================================================ */
.pagination { display: flex; justify-content: center; gap: .375rem; margin-top: 3rem; flex-wrap: wrap; }
.pagination a, .pagination .current, .pagination span { display: inline-flex; align-items: center; justify-content: center; min-width: 40px; height: 40px; padding: 0 .75rem; border-radius: var(--r-md); font-size: .9rem; font-weight: 500; border: 1px solid var(--border); background: var(--glass); color: var(--text-3); transition: all var(--t); backdrop-filter: blur(8px); }
.pagination a:hover { border-color: var(--border-2); color: var(--text-1); background: var(--bg-card-hover); }
.pagination .current { background: var(--grad-primary); color: #fff; border-color: transparent; box-shadow: var(--shadow-blue); }

/* ============================================================
   FOOTER — dark, clean
   ============================================================ */
#site-footer {
  background: var(--bg-2);
  color: var(--text-3);
  border-top: 1px solid var(--border);
}
.footer-top { display: grid; grid-template-columns: 2.5fr 1fr 1fr 1.5fr; gap: 3rem; padding: 4rem 0 3rem; }
.footer-logo-text { font-size: 1.25rem; font-weight: 800; letter-spacing: -.03em; color: var(--text-1); margin-bottom: .875rem; display: inline-block; }
.footer-logo-text em { font-style: normal; background: var(--grad-accent); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.footer-brand p { font-size: .9375rem; line-height: 1.7; margin-bottom: 1.5rem; color: var(--text-3); }
.social-links { display: flex; gap: .5rem; }
.social-link { width: 34px; height: 34px; border-radius: var(--r-sm); background: var(--glass); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--text-3); font-size: .875rem; transition: all var(--t); }
.social-link:hover { background: var(--blue); color: #fff; border-color: var(--blue); transform: translateY(-2px); box-shadow: var(--shadow-blue); }
.footer-col h4 { font-size: .6875rem; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; color: var(--text-2); margin-bottom: 1.125rem; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col ul li { margin-bottom: .5rem; border-bottom: none; padding: 0; }
.footer-col ul li a { font-size: .9375rem; color: var(--text-3); transition: color var(--t); }
.footer-col ul li a:hover { color: var(--cyan); }
.footer-newsletter-desc { font-size: .9rem; margin-bottom: 1rem; color: var(--text-3); }
.footer-subscribe-form { display: flex; flex-direction: column; gap: .625rem; }
.footer-subscribe-form input[type="email"] { padding: .625rem 1rem; border-radius: var(--r-sm); border: 1px solid var(--border); background: var(--bg-3); color: var(--text-1); font-size: .875rem; font-family: var(--font); outline: none; transition: border-color var(--t), box-shadow var(--t); }
.footer-subscribe-form input::placeholder { color: var(--text-4); }
.footer-subscribe-form input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-glow); }
.footer-bottom { border-top: 1px solid var(--border); padding: 1.375rem 0; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: .75rem; font-size: .875rem; color: var(--text-4); }
.footer-bottom p { color: var(--text-4); margin: 0; }
.footer-bottom a { color: var(--text-3); transition: color var(--t); }
.footer-bottom a:hover { color: var(--cyan); }
@media (max-width: 1024px) { .footer-top { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .footer-top { grid-template-columns: 1fr; gap: 2rem; } .footer-bottom { flex-direction: column; text-align: center; } }

/* ============================================================
   UTILITIES
   ============================================================ */
.text-center { text-align: center; }
.text-cyan   { color: var(--cyan); }
.text-muted  { color: var(--text-3); }
.mt-2 { margin-top: 1rem; } .mt-3 { margin-top: 1.5rem; } .mt-4 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; } .mb-3 { margin-bottom: 1.5rem; }

/* Gradient text utility */
.text-gradient {
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   ACCESSIBILITY
   ============================================================ */
.skip-link { position: absolute; top: -100%; left: 1rem; background: var(--blue); color: #fff; padding: .5rem 1rem; border-radius: 0 0 var(--r-sm) var(--r-sm); font-weight: 600; z-index: 9999; transition: top .2s; }
.skip-link:focus { top: 0; color: #fff; }
.screen-reader-text { clip: rect(1px,1px,1px,1px); position: absolute !important; height: 1px; width: 1px; overflow: hidden; }

/* ============================================================
   WP CORE CLASSES
   ============================================================ */
.alignleft  { float: left; margin: .5rem 1.5rem 1rem 0; }
.alignright { float: right; margin: .5rem 0 1rem 1.5rem; }
.aligncenter { display: block; margin: 1.5rem auto; }
.alignwide  { max-width: calc(var(--max-w) + 4rem); margin-left: auto; margin-right: auto; }
.alignfull  { width: 100vw; position: relative; left: 50%; margin-left: -50vw; }
.wp-block-image figcaption, .wp-caption-text { text-align: center; font-size: .8125rem; color: var(--text-4); margin-top: .5rem; }
.sticky { border-left: 3px solid var(--blue); padding-left: 1rem; }

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeUp { from{opacity:0;transform:translateY(20px)} to{opacity:1;transform:translateY(0)} }
@keyframes glow-pulse { 0%,100%{box-shadow:0 0 20px var(--blue-glow)} 50%{box-shadow:0 0 40px var(--blue-glow), 0 0 60px var(--purple-glow)} }
.fade-up { animation: fadeUp .5s ease both; }
.delay-1 { animation-delay: .08s; } .delay-2 { animation-delay: .16s; }
.delay-3 { animation-delay: .24s; } .delay-4 { animation-delay: .32s; }

/* ============================================================
   EASY DIGITAL DOWNLOADS — dark 3D skin
   ============================================================ */

/* Download grid */
.edd_downloads_list { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--gap); list-style: none; padding: 0; margin: 0; }
@media (max-width: 1024px) { .edd_downloads_list { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 560px)  { .edd_downloads_list { grid-template-columns: 1fr; } }

.edd_download {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-xl);
  padding: 1.875rem;
  box-shadow: var(--shadow-glow);
  display: flex; flex-direction: column;
  position: relative; overflow: hidden;
  transition: transform var(--t-slow), box-shadow var(--t-slow), border-color var(--t);
}
.edd_download::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.06) 0%, transparent 55%);
  pointer-events: none;
}
.edd_download:hover {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,.16);
  box-shadow: 0 0 0 1px rgba(255,255,255,.08), 0 24px 60px rgba(0,0,0,.6), 0 0 80px rgba(67,97,238,.12);
}
.edd_download .edd_download_inner { display: flex; flex-direction: column; flex: 1; }
.edd_download .edd_title a { font-size: 1.125rem; font-weight: 700; color: var(--text-1); transition: color var(--t); display: block; margin-bottom: .625rem; }
.edd_download .edd_title a:hover { color: var(--cyan); }
.edd_download .edd_excerpt { font-size: .9rem; color: var(--text-3); line-height: 1.65; flex: 1; margin-bottom: 1.25rem; }
.edd_download .edd_price { font-size: 1.5rem; font-weight: 800; letter-spacing: -.04em; background: var(--grad-accent); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 1rem; }

/* Purchase button */
.edd_download .edd-add-to-cart,
.edd_download .button,
.edd-submit,
#edd-purchase-button {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5rem;
  padding: .6875rem 1.5rem;
  background: var(--grad-primary);
  color: #fff !important;
  border: none;
  border-radius: var(--r-md);
  font-weight: 600; font-size: .9375rem; font-family: var(--font);
  cursor: pointer; text-decoration: none;
  box-shadow: 0 4px 20px var(--blue-glow);
  transition: all var(--t-slow);
  width: 100%;
}
.edd_download .edd-add-to-cart:hover,
.edd_download .button:hover,
.edd-submit:hover,
#edd-purchase-button:hover {
  color: #fff !important;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--blue-glow);
}

/* Checkout */
#edd_checkout_wrap {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-2xl);
  box-shadow: var(--shadow-glow);
  padding: 2.5rem;
  max-width: 680px; margin: 0 auto;
}
#edd_checkout_cart th,
#edd_checkout_cart td { padding: .875rem 1rem; border-bottom: 1px solid var(--border); color: var(--text-2); font-size: .9375rem; }
#edd_checkout_cart th { color: var(--text-4); font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
#edd_checkout_cart { width: 100%; border-collapse: collapse; }

#edd_checkout_user_info label,
#edd-payment-mode-select label,
#edd_purchase_form label {
  display: block; font-size: .8125rem; font-weight: 600; color: var(--text-3); margin-bottom: .375rem;
}
#edd_checkout_user_info input[type="text"],
#edd_checkout_user_info input[type="email"],
#edd_checkout_user_info input[type="password"],
#edd_purchase_form input[type="text"],
#edd_purchase_form input[type="email"] {
  width: 100%; padding: .75rem 1rem;
  background: var(--bg-3); border: 1.5px solid var(--border);
  border-radius: var(--r-md); color: var(--text-1);
  font-size: .9375rem; font-family: var(--font);
  outline: none; transition: border-color var(--t), box-shadow var(--t);
  margin-bottom: 1rem;
}
#edd_checkout_user_info input:focus,
#edd_purchase_form input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(67,97,238,.15); }

#edd-payment-mode-select { margin: 1.5rem 0; padding: 1.25rem; background: var(--glass); border: 1px solid var(--border); border-radius: var(--r-lg); }
#edd-payment-mode-select legend { font-size: .8125rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--text-4); margin-bottom: .75rem; }

/* Order confirmation / receipt */
.edd_receipt table { width: 100%; border-collapse: collapse; margin-top: 1.5rem; }
.edd_receipt td, .edd_receipt th { padding: .75rem 1rem; border-bottom: 1px solid var(--border); color: var(--text-2); font-size: .9375rem; }
.edd_receipt th { color: var(--text-4); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 700; }

/* Notices */
.edd_errors, .edd-alert { list-style: none; padding: 0; margin: 1rem 0; }
.edd_errors li, .edd-alert { padding: .875rem 1.25rem; border-radius: var(--r-md); font-size: .9375rem; }
.edd_errors li { background: rgba(247,37,133,.12); border: 1px solid rgba(247,37,133,.3); color: #fb7eb8; }
.edd-alert-success { background: rgba(16,185,129,.12); border: 1px solid rgba(16,185,129,.3); color: #34d399; }
.edd-alert-info { background: rgba(67,97,238,.12); border: 1px solid rgba(67,97,238,.3); color: var(--blue-light); }

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  #site-header, #site-footer, .sidebar, .post-nav, .comments-area, .hero-visual { display: none; }
  body { background: #fff; color: #000; font-size: 12pt; }
  .container { max-width: 100%; padding: 0; }
  a { color: #000; text-decoration: underline; }
}