/*
 * homepage.css — Homepage-Specific Premium Visual Styles
 * NextAIWorks Theme v3.0 — Milestone 3
 *
 * Design reference: The Verge, Towards Data Science, TechCrunch, Stripe Engineering Blog.
 * Principles: Strong typography hierarchy · Clean whitespace · Editorial authority.
 * ============================================================ */

/* ============================================================
   SECTION: EDITORIAL LABEL (above hero)
   A thin accent bar above the hero — immediately signals "publication"
   ============================================================ */
.pub-editorial-bar {
  background: var(--brand-navy);
  border-bottom: 3px solid var(--brand-blue);
  padding: var(--space-2) 0;
}
.pub-editorial-bar-inner {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-5);
  overflow-x: auto;
  scrollbar-width: none;
}
.pub-editorial-bar-inner::-webkit-scrollbar { display: none; }
.pub-editorial-label {
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--brand-blue);
  white-space: nowrap;
  padding-right: var(--space-5);
  border-right: 1px solid rgba(255,255,255,0.15);
}
.pub-editorial-tags {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  flex-shrink: 0;
}
.pub-editorial-tag {
  font-size: 0.78rem;
  font-weight: 600;
  color: rgba(255,255,255,0.75);
  white-space: nowrap;
  text-decoration: none;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  transition: color var(--transition-fast), background var(--transition-fast);
}
.pub-editorial-tag:hover {
  color: #fff;
  background: rgba(255,255,255,0.1);
}

/* ============================================================
   SECTION: HERO — EDITORIAL LAYOUT
   The flagship hero. Two-column asymmetric editorial grid.
   ============================================================ */
.pub-hero-wrap {
  padding-block: var(--space-8) var(--space-6);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: var(--space-8);
}

.pub-hero-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: var(--space-6);
  align-items: stretch;
  margin-bottom: 0;
}

/* MAIN FEATURED CARD — Editorial hero style */
.pub-hero-main .pub-card {
  border: none;
  box-shadow: none;
  background: transparent;
  border-radius: 0;
  overflow: visible;
}
.pub-hero-main .pub-card:hover {
  box-shadow: none;
  transform: none;
}
.pub-hero-main .pub-card::before { display: none; }
.pub-hero-main .pub-card-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 420px;
  box-shadow: var(--shadow-md);
  display: block;
  aspect-ratio: unset;
}
.pub-hero-main .pub-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms ease;
}
.pub-hero-main .pub-card:hover .pub-card-img img {
  transform: scale(1.02);
}
.pub-hero-main .pub-card-body {
  padding: var(--space-5) 0 0;
  gap: var(--space-3);
}
.pub-hero-main .pub-card-title {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--brand-navy);
}
.pub-hero-main .pub-card-title a { color: inherit; }
.pub-hero-main .pub-card-title a:hover { color: var(--brand-blue); }
.pub-hero-main .pub-card-excerpt {
  font-size: 1.05rem;
  color: var(--text-muted);
  -webkit-line-clamp: 3;
  line-height: 1.65;
}

/* SECONDARY STACK — numbered editorial sidebar */
.pub-hero-side {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-left: 1px solid var(--border-color);
  padding-left: var(--space-6);
}
.pub-hero-side .pub-card {
  border: none;
  border-bottom: 1px solid var(--border-color);
  border-radius: 0;
  box-shadow: none;
  background: transparent;
  flex-direction: row;
  gap: var(--space-4);
  padding-block: var(--space-5);
  overflow: visible;
  align-items: flex-start;
  transition: background 150ms ease;
}
.pub-hero-side .pub-card::before { display: none; }
.pub-hero-side .pub-card:hover {
  background: var(--bg-muted);
  box-shadow: none;
  transform: none;
  border-color: var(--border-color);
  border-radius: var(--radius-sm);
}
.pub-hero-side .pub-card:last-child { border-bottom: none; }
.pub-hero-side .pub-card-img {
  flex: 0 0 88px;
  height: 66px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: unset;
}
.pub-hero-side .pub-card-body { padding: 0; gap: var(--space-2); }
.pub-hero-side .pub-card-title { font-size: 0.9rem; line-height: 1.4; font-weight: 700; }
.pub-hero-side .pub-meta { border: none; padding: 0; font-size: 0.75rem; }
.pub-hero-side .pub-card-excerpt { display: none; }

/* ============================================================
   CATEGORY COLOR SYSTEM
   ============================================================ */
:root {
  --cat-agentic:   #7C3AED;
  --cat-rpa:       #059669;
  --cat-python:    #D97706;
  --cat-aws:       #EA8C00;
  --cat-ai:        #2563EB;
  --cat-tutorials: #0891B2;
  --cat-docs:      #DC2626;
  --cat-auto:      #4F46E5;
}

/* Enhanced category pill */
.pub-category {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--brand-blue);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  padding: 3px 10px;
  background: rgba(37,99,235,0.08);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: all 200ms ease;
  border: 1px solid transparent;
}
.pub-category:hover {
  background: var(--brand-blue);
  color: #fff;
  border-color: var(--brand-blue);
}
a.pub-category[href*="agentic"] { color: var(--cat-agentic); background: rgba(124,58,237,0.08); }
a.pub-category[href*="agentic"]:hover { background: var(--cat-agentic); color: #fff; }
a.pub-category[href*="rpa"] { color: var(--cat-rpa); background: rgba(5,150,105,0.08); }
a.pub-category[href*="rpa"]:hover { background: var(--cat-rpa); color: #fff; }
a.pub-category[href*="python"] { color: var(--cat-python); background: rgba(217,119,6,0.08); }
a.pub-category[href*="python"]:hover { background: var(--cat-python); color: #fff; }
a.pub-category[href*="aws"] { color: var(--cat-aws); background: rgba(234,140,0,0.08); }
a.pub-category[href*="aws"]:hover { background: var(--cat-aws); color: #fff; }

/* ============================================================
   ENHANCED ARTICLE CARD
   ============================================================ */
.pub-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 250ms ease, transform 250ms ease, border-color 200ms ease;
  box-shadow: var(--shadow-sm);
  position: relative;
}
.pub-card:hover {
  box-shadow: 0 12px 28px rgba(15,23,42,0.10), 0 4px 8px rgba(15,23,42,0.06);
  transform: translateY(-4px);
  border-color: var(--border-strong);
}
.pub-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--brand-blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 250ms ease;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  z-index: 1;
}
.pub-card:hover::before { transform: scaleX(1); }

.pub-card-img {
  overflow: hidden;
  background: var(--bg-muted);
  aspect-ratio: 16/9;
}
.pub-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 350ms ease;
  display: block;
}
.pub-card:hover .pub-card-img img { transform: scale(1.04); }

/* ============================================================
   SECTION DIVIDER
   ============================================================ */
.pub-section-divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-block: var(--space-10);
}
.pub-section-divider::before,
.pub-section-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-color);
}
.pub-section-divider-label {
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ============================================================
   CATEGORY CARDS — Premium Icon Grid
   ============================================================ */
.pub-categories-wrap {
  padding-block: var(--space-10);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  margin-block: var(--space-10);
}
.pub-categories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.pub-cat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-4);
  text-align: center;
  color: var(--brand-navy);
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  transition: all 250ms ease;
  box-shadow: var(--shadow-xs);
}
.pub-cat-card-icon {
  font-size: 2rem;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-muted);
  border-radius: var(--radius-full);
  transition: transform 200ms ease, background 200ms ease;
}
.pub-cat-card:hover {
  border-color: var(--brand-blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  color: var(--brand-blue);
}
.pub-cat-card:hover .pub-cat-card-icon {
  transform: scale(1.1);
  background: rgba(37,99,235,0.1);
}
.pub-cat-card[href*="agentic"]:hover { color: var(--cat-agentic); border-color: var(--cat-agentic); }
.pub-cat-card[href*="agentic"]:hover .pub-cat-card-icon { background: rgba(124,58,237,0.1); }
.pub-cat-card[href*="rpa"]:hover { color: var(--cat-rpa); border-color: var(--cat-rpa); }
.pub-cat-card[href*="rpa"]:hover .pub-cat-card-icon { background: rgba(5,150,105,0.1); }
.pub-cat-card[href*="python"]:hover { color: var(--cat-python); border-color: var(--cat-python); }
.pub-cat-card[href*="python"]:hover .pub-cat-card-icon { background: rgba(217,119,6,0.1); }
.pub-cat-card[href*="aws"]:hover { color: var(--cat-aws); border-color: var(--cat-aws); }
.pub-cat-card[href*="aws"]:hover .pub-cat-card-icon { background: rgba(234,140,0,0.1); }

/* ============================================================
   AI CONSULTING — Authority Dark Block
   ============================================================ */
.pub-consulting-section {
  background: var(--brand-navy);
  border-radius: var(--radius-xl);
  padding: var(--space-12) var(--space-10);
  color: var(--text-inverse);
  margin-block: var(--space-12);
  position: relative;
  overflow: hidden;
}
.pub-consulting-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}
.pub-consulting-inner { position: relative; z-index: 1; }

.pub-consulting-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-10);
  align-items: start;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.pub-consulting-section h2 {
  color: #fff;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: var(--space-3);
}
.pub-consulting-desc {
  color: rgba(255,255,255,0.6);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 520px;
  margin: 0;
}
.pub-consulting-stats {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  align-items: flex-end;
  flex-shrink: 0;
}
.pub-stat-item { text-align: right; }
.pub-stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}
.pub-stat-label {
  font-size: 0.73rem;
  color: rgba(255,255,255,0.45);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-top: 2px;
}

.pub-service-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}
.pub-service-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  transition: background 250ms ease, border-color 250ms ease, transform 200ms ease;
}
.pub-service-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(37,99,235,0.4);
  transform: translateY(-2px);
}
.pub-service-card-icon { font-size: 1.6rem; margin-bottom: var(--space-3); display: block; }
.pub-service-card h3 { color: #fff; font-size: 0.95rem; font-weight: 700; margin-bottom: var(--space-2); }
.pub-service-card p { color: rgba(255,255,255,0.5); font-size: 0.85rem; line-height: 1.6; margin: 0; }

.pub-consulting-cta {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex-wrap: wrap;
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.08);
}
.pub-consulting-contact { font-size: 0.88rem; color: rgba(255,255,255,0.5); }
.pub-consulting-contact a { color: rgba(255,255,255,0.8); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }
.pub-consulting-contact a:hover { color: #fff; }

/* ============================================================
   NEWSLETTER — Full-width dark CTA
   ============================================================ */
.pub-newsletter {
  background: var(--brand-navy);
  border-radius: var(--radius-xl);
  padding: var(--space-12) var(--space-10);
  text-align: center;
  margin-block: var(--space-12);
  position: relative;
  overflow: hidden;
}
.pub-newsletter::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 100%, rgba(37,99,235,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.pub-newsletter-inner { position: relative; z-index: 1; }
.pub-newsletter h2 { color: #fff; font-size: clamp(1.5rem, 3vw, 2.2rem); letter-spacing: -0.03em; margin-bottom: var(--space-3); }
.pub-newsletter p { color: rgba(255,255,255,0.6); font-size: 1.05rem; max-width: 500px; margin-inline: auto; margin-bottom: var(--space-7); line-height: 1.7; }
.pub-newsletter-form {
  display: flex;
  gap: var(--space-2);
  max-width: 440px;
  margin-inline: auto;
  margin-bottom: var(--space-4);
}
.pub-newsletter-form input {
  flex: 1;
  padding: var(--space-3) var(--space-5);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  background: rgba(255,255,255,0.06);
  color: #fff;
  transition: border-color 200ms, background 200ms;
}
.pub-newsletter-form input::placeholder { color: rgba(255,255,255,0.3); }
.pub-newsletter-form input:focus {
  outline: none;
  border-color: var(--brand-blue);
  background: rgba(255,255,255,0.1);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.25);
}
.pub-newsletter-form button {
  padding: var(--space-3) var(--space-6);
  background: var(--brand-blue);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 200ms ease, transform 150ms ease;
  white-space: nowrap;
}
.pub-newsletter-form button:hover { background: var(--brand-blue-dark); transform: translateY(-1px); }
.pub-newsletter-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
  font-weight: 500;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.pub-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--brand-blue);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  padding: var(--space-3) var(--space-7);
  border-radius: var(--radius-full);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 200ms ease, transform 150ms ease, box-shadow 200ms ease;
  letter-spacing: -0.01em;
}
.pub-btn-primary:hover {
  background: var(--brand-blue-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(37,99,235,0.4);
}
.pub-btn-outline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: transparent;
  color: rgba(255,255,255,0.75);
  font-weight: 600;
  font-size: 0.9rem;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.18);
  cursor: pointer;
  transition: all 200ms ease;
}
.pub-btn-outline:hover {
  color: #fff;
  border-color: rgba(255,255,255,0.45);
  background: rgba(255,255,255,0.08);
}

/* ============================================================
   SIDEBAR WIDGET HEADER — accent bar
   ============================================================ */
.pub-widget-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--brand-navy);
  border-bottom: 2px solid var(--brand-navy);
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-5);
}
.pub-widget-title::before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 14px;
  background: var(--brand-blue);
  border-radius: 2px;
  flex-shrink: 0;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1100px) {
  .pub-consulting-header { grid-template-columns: 1fr; gap: var(--space-6); }
  .pub-consulting-stats { flex-direction: row; align-items: flex-start; }
  .pub-stat-item { text-align: left; }
  .pub-service-cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .pub-hero-grid { grid-template-columns: 1fr; }
  .pub-hero-side {
    border-left: none;
    border-top: 1px solid var(--border-color);
    padding-left: 0;
    padding-top: var(--space-5);
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-4);
  }
  .pub-hero-side .pub-card { flex: 1 1 calc(50% - var(--space-2)); }
  .pub-hero-main .pub-card-img { height: 280px; }
  .pub-hero-main .pub-card-title { font-size: 1.6rem; }
  .pub-categories-grid { grid-template-columns: repeat(4, 1fr); }
  .pub-consulting-section, .pub-newsletter { padding: var(--space-10) var(--space-6); }
}
@media (max-width: 640px) {
  .pub-hero-main .pub-card-img { height: 220px; }
  .pub-hero-main .pub-card-title { font-size: 1.4rem; }
  .pub-hero-side { flex-direction: column; }
  .pub-hero-side .pub-card { flex: none; }
  .pub-categories-grid { grid-template-columns: repeat(2, 1fr); }
  .pub-articles-grid { grid-template-columns: 1fr; }
  .pub-service-cards { grid-template-columns: 1fr; }
  .pub-newsletter-form { flex-direction: column; }
  .pub-consulting-section, .pub-newsletter { padding: var(--space-8) var(--space-5); border-radius: var(--radius-lg); }
}