/*
Theme Name: StartupsToday
Theme URI: https://startupstoday.app
Description: Dark neon startup magazine theme with 3-column layout.
Version: 1.0.0
Author: StartupsToday
Text Domain: startups
*/

:root {
  --clr-bg: #0a0a0c;
  --clr-surface: #131317;
  --clr-surface-hover: #1a1a20;
  --clr-border: #222230;
  --clr-accent: #ff1a40;
  --clr-accent-hover: #e61235;
  --clr-accent-soft: rgba(255,26,64,.1);
  --clr-accent-glow: rgba(255,26,64,.25);
  --clr-text: #e8e8ec;
  --clr-text-mid: #9a9ab0;
  --clr-text-dim: #5e5e72;
  --clr-white: #ffffff;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Inter', -apple-system, sans-serif;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-card: 0 2px 12px rgba(0,0,0,.4);
  --shadow-hover: 0 8px 30px rgba(255,26,64,.08);
  --transition: .2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-main);
  font-size: 15px;
  line-height: 1.6;
  color: var(--clr-text);
  background-color: var(--clr-bg);
  background-image: url('bg.webp');
  background-size: 500px auto;
  background-repeat: repeat;
  background-attachment: fixed;
  background-blend-mode: color-dodge;
  background-color: #060608;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--clr-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--clr-accent-hover); }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); font-weight: 700; line-height: 1.3; color: var(--clr-white); }

/* ===== HEADER ===== */
.site-header {
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.header-brand a {
  display: flex;
  align-items: center;
  gap: .6rem;
  position: relative;
}
.header-brand__logo {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  flex-shrink: 0;
}
.header-brand__text { display: flex; flex-direction: column; line-height: 1.2; }
.header-brand__name {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--clr-white);
  letter-spacing: -.02em;
}
.header-brand__name span { color: var(--clr-accent); }
.header-brand__text::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,26,64,.4), transparent);
  animation: brand-shine 1.8s ease-out .3s forwards;
  pointer-events: none;
}
@keyframes brand-shine {
  0% { left: -60%; }
  100% { left: 120%; }
}
.header-brand__slogan {
  font-size: .68rem;
  color: var(--clr-text-dim);
  letter-spacing: .02em;
}
.header-search {
  flex: 1;
  max-width: 360px;
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: .5rem;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: 8px;
  padding: 0 .85rem;
  transition: border-color var(--transition);
}
.header-search:focus-within { border-color: var(--clr-accent); box-shadow: 0 0 0 2px var(--clr-accent-soft); }
.header-search svg { color: var(--clr-text-dim); flex-shrink: 0; }
.header-search input {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--clr-text);
  font-size: .88rem;
  padding: .55rem 0;
  outline: none;
}
.header-search input::placeholder { color: var(--clr-text-dim); }

.burger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  flex-direction: column;
  gap: 5px;
  margin-left: auto;
}
.burger span { display: block; width: 22px; height: 2px; background: var(--clr-white); border-radius: 2px; transition: all .3s; }
.burger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.active span:nth-child(2) { opacity: 0; }
.burger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 768px) {
  .header-search { display: none; }
  .burger { display: flex; }
}

/* ===== CATEGORY BAR ===== */
.cat-bar {
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  position: relative;
}
.cat-bar__inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  gap: .75rem;
  padding: .75rem 1.25rem;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  cursor: grab;
}
.cat-bar__inner::-webkit-scrollbar { display: none; }
.cat-card {
  flex-shrink: 0;
  width: 160px;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}
.cat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.cat-card img { width: 100%; height: 95px; object-fit: cover; filter: brightness(.7); transition: filter var(--transition); }
.cat-card:hover img { filter: brightness(.85); }
.cat-card__label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: .5rem .65rem;
  background: linear-gradient(transparent, rgba(0,0,0,.85));
  font-size: .78rem;
  font-weight: 600;
  color: var(--clr-white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ===== THREE-COLUMN LAYOUT ===== */
.site-layout {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem;
  display: grid;
  grid-template-columns: 220px 1fr 260px;
  gap: 1.5rem;
  align-items: start;
}

/* Left sidebar */
.sidebar-left {
  position: sticky;
  top: 78px;
}
.sidebar-nav {
  background: var(--clr-surface);
  border-radius: var(--radius);
  border: 1px solid var(--clr-border);
  overflow: hidden;
  margin-bottom: 1rem;
}
.sidebar-nav__title {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 1rem;
  font-size: .82rem;
  font-weight: 700;
  color: var(--clr-accent);
  text-transform: uppercase;
  letter-spacing: .06em;
  cursor: pointer;
  user-select: none;
  border-bottom: 1px solid var(--clr-border);
}
.sidebar-nav__title::after {
  content: '';
  width: 6px;
  height: 6px;
  border-right: 2px solid var(--clr-text-dim);
  border-bottom: 2px solid var(--clr-text-dim);
  transform: rotate(45deg);
  transition: transform .3s;
  margin-left: auto;
}
.sidebar-nav.collapsed .sidebar-nav__title::after { transform: rotate(-135deg); }
.sidebar-nav ul { padding: .4rem 0; }
.sidebar-nav.collapsed ul { display: none; }
.sidebar-nav li a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .5rem 1rem;
  font-size: .84rem;
  color: var(--clr-text-mid);
  transition: all var(--transition);
}
.sidebar-nav li a:hover { color: var(--clr-accent); background: var(--clr-accent-soft); }
.sidebar-nav li a .count {
  font-size: .72rem;
  color: var(--clr-text-dim);
  background: var(--clr-bg);
  padding: .1rem .45rem;
  border-radius: 3px;
}

/* Sidebar widget */
.sidebar-widget {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
}
.sidebar-widget__title {
  font-size: .82rem;
  font-weight: 700;
  color: var(--clr-accent);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: .85rem;
  padding-bottom: .5rem;
  border-bottom: 1px solid var(--clr-border);
}
.tag-cloud { display: flex; flex-wrap: wrap; gap: .4rem; }
.tag-cloud a {
  display: inline-block;
  padding: .3rem .65rem;
  font-size: .76rem;
  font-weight: 500;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  color: var(--clr-text-mid);
  border-radius: 4px;
  transition: all var(--transition);
}
.tag-cloud a:hover { border-color: var(--clr-accent); color: var(--clr-accent); background: var(--clr-accent-soft); }
.popular-list { display: flex; flex-direction: column; gap: .1rem; }
.popular-item { display: flex; align-items: baseline; gap: .6rem; padding: .45rem 0; border-bottom: 1px solid var(--clr-border); }
.popular-item:last-child { border-bottom: none; }
.popular-item__num { font-size: .72rem; font-weight: 800; color: var(--clr-accent); min-width: 1.2rem; }
.popular-item__title { font-size: .82rem; line-height: 1.35; }
.popular-item__title a { color: var(--clr-text); }
.popular-item__title a:hover { color: var(--clr-accent); }

/* ===== FEED CARDS ===== */
.feed-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: grid;
  grid-template-columns: 280px 1fr;
  transition: box-shadow var(--transition), border-color var(--transition);
  margin-bottom: 1rem;
}
.feed-card:hover { box-shadow: var(--shadow-hover); border-color: rgba(255,26,64,.2); }
.feed-card__img { overflow: hidden; min-height: 180px; }
.feed-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.feed-card:hover .feed-card__img img { transform: scale(1.03); }
.feed-card__body { padding: 1.1rem 1.25rem; display: flex; flex-direction: column; justify-content: center; }
.feed-card__cat {
  display: inline-block;
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--clr-accent);
  margin-bottom: .45rem;
}
.feed-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: .5rem;
}
.feed-card__title a { color: var(--clr-white); }
.feed-card__title a:hover { color: var(--clr-accent); }
.feed-card__excerpt {
  font-size: .85rem;
  color: var(--clr-text-mid);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: .6rem;
}
.feed-card__meta {
  font-size: .75rem;
  color: var(--clr-text-dim);
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-top: auto;
}
.feed-card__meta svg { width: 13px; height: 13px; vertical-align: -2px; margin-right: 3px; }

@media (max-width: 900px) {
  .feed-card { grid-template-columns: 1fr; }
  .feed-card__img { max-height: 200px; }
}

/* ===== RESPONSIVE 3-COLUMN ===== */
@media (max-width: 1100px) {
  .site-layout { grid-template-columns: 200px 1fr; }
  .sidebar-right { display: none; }
}
@media (max-width: 768px) {
  .site-layout { grid-template-columns: 1fr; padding: 1rem; }
  .sidebar-left { display: none; }
  .sidebar-right { display: none; }
  .cat-bar__inner { padding: 0 1rem; }
}

/* ===== MOBILE MENU ===== */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 60px 0 0 0;
  background: var(--clr-bg);
  z-index: 999;
  padding: 1.5rem;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.mobile-menu.active { display: block; }
.mobile-menu ul { display: flex; flex-direction: column; gap: .25rem; }
.mobile-menu ul li a {
  display: block;
  padding: .75rem 1rem;
  font-size: 1rem;
  color: var(--clr-text);
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.mobile-menu ul li a:hover { background: var(--clr-surface); color: var(--clr-accent); }
.mobile-menu__search { margin-bottom: 1.25rem; }
.mobile-menu__search input {
  width: 100%;
  padding: .75rem 1rem;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  background: var(--clr-surface);
  color: var(--clr-text);
  font-size: .95rem;
  outline: none;
}
.mobile-menu__search input:focus { border-color: var(--clr-accent); }
.mobile-menu__search input::placeholder { color: var(--clr-text-dim); }

/* ===== SINGLE ARTICLE ===== */
.single-layout {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem;
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 1.5rem;
  align-items: start;
}
@media (max-width: 1100px) {
  .single-layout { grid-template-columns: 1fr; }
}
.article-wrap { min-width: 0; max-width: 800px; }

.breadcrumbs {
  font-size: .82rem;
  color: var(--clr-text-dim);
  margin-bottom: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: .3rem;
}
.breadcrumbs a { color: var(--clr-text-mid); }
.breadcrumbs a:hover { color: var(--clr-accent); }

.article-header { margin-bottom: 1.25rem; }
.article-header h1 { font-size: 1.75rem; margin-bottom: .65rem; }
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
  font-size: .82rem;
  color: var(--clr-text-dim);
}
.article-meta svg { vertical-align: -2px; margin-right: 3px; }

.article-featured { margin-bottom: 1.5rem; border-radius: var(--radius); overflow: hidden; }
.article-featured img { width: 100%; }

/* TOC */
.toc {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
}
.toc__title {
  font-size: .88rem;
  font-weight: 700;
  color: var(--clr-accent);
  cursor: pointer;
  display: flex;
  align-items: center;
  user-select: none;
}
.toc__title::after {
  content: '';
  width: 6px;
  height: 6px;
  border-right: 2px solid var(--clr-text-dim);
  border-bottom: 2px solid var(--clr-text-dim);
  transform: rotate(45deg);
  transition: transform .3s;
  margin-left: auto;
}
.toc.collapsed .toc__title::after { transform: rotate(-135deg); }
.toc__list { padding-left: 0; margin-top: .6rem; }
.toc.collapsed .toc__list { display: none; }
.toc__list li { margin-bottom: .35rem; }
.toc__list a { color: var(--clr-text-mid); font-size: .85rem; }
.toc__list a:hover { color: var(--clr-accent); }
.toc__list .toc-h3 { padding-left: 1.25rem; font-size: .82rem; }

/* Article content */
.entry-content {
  color: var(--clr-text);
  font-size: 1.02rem;
  line-height: 1.75;
}
.entry-content h2 {
  font-size: 1.3rem;
  margin: 2.25rem 0 .85rem;
  padding-bottom: .4rem;
  border-bottom: 2px solid var(--clr-accent);
}
.entry-content h3 {
  font-size: 1.1rem;
  margin: 1.75rem 0 .65rem;
}
.entry-content p { margin-bottom: 1.1rem; }
.entry-content ul, .entry-content ol { margin: .75rem 0 1.25rem 1.5rem; }
.entry-content ul { list-style: disc; }
.entry-content ol { list-style: decimal; }
.entry-content li { margin-bottom: .35rem; }
.entry-content blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--clr-accent);
  background: var(--clr-accent-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--clr-text-mid);
}
.entry-content img { border-radius: var(--radius-sm); margin: 1.25rem 0; }
.entry-content figure { margin: 1.25rem 0; }
.entry-content figcaption { font-size: .78rem; color: var(--clr-text-dim); text-align: center; margin-top: .4rem; font-style: italic; }
.entry-content a { color: var(--clr-accent); text-decoration: underline; text-underline-offset: 2px; }
.entry-content table { width: 100%; border-collapse: collapse; margin: 1.25rem 0; font-size: .88rem; }
.entry-content th, .entry-content td { padding: .6rem .85rem; border: 1px solid var(--clr-border); text-align: left; }
.entry-content th { background: var(--clr-accent); color: var(--clr-white); font-weight: 600; }
.entry-content tr:nth-child(even) { background: var(--clr-surface-hover); }

/* Ad slots */
.ad-slot {
  min-height: 90px;
  margin: 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* FAQ */
.faq-section { margin: 2rem 0 1.5rem; }
.faq-section__title { font-size: 1.2rem; margin-bottom: 1rem; }
.faq-item { border: 1px solid var(--clr-border); border-radius: var(--radius-sm); margin-bottom: .5rem; overflow: hidden; }
.faq-item__q {
  padding: .85rem 1rem;
  font-weight: 600;
  font-size: .92rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--clr-surface);
  color: var(--clr-text);
}
.faq-item__q::after { content: '+'; font-size: 1.2rem; color: var(--clr-accent); }
.faq-item.open .faq-item__q::after { content: '−'; }
.faq-item__a { display: none; padding: .85rem 1rem; font-size: .88rem; color: var(--clr-text-mid); line-height: 1.6; }
.faq-item.open .faq-item__a { display: block; }

/* Related posts */
.related-posts { margin: 2.5rem 0 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--clr-border); }
.related-posts__title { font-size: 1.15rem; margin-bottom: 1rem; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
@media (max-width: 700px) { .related-grid { grid-template-columns: 1fr; } }

.related-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
}
.related-card:hover { box-shadow: var(--shadow-hover); border-color: rgba(255,26,64,.2); }
.related-card__img { height: 160px; overflow: hidden; background: var(--clr-border); border-radius: var(--radius) var(--radius) 0 0; flex-shrink: 0; }
.related-card__img img { width: 100%; height: 100%; object-fit: cover; }
.related-card__body { padding: .85rem 1rem 1rem; flex: 1; }
.related-card__title { font-size: .92rem; font-weight: 700; line-height: 1.4; }
.related-card__title a { color: var(--clr-text); }
.related-card__title a:hover { color: var(--clr-accent); }

/* ===== PAGINATION ===== */
.pagination-wrap { display: flex; justify-content: center; padding: 1.5rem 0 2rem; }
.pagination { display: flex; gap: .3rem; align-items: center; }
.page-btn,
.pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 .65rem;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 600;
  color: var(--clr-text-mid);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  transition: all var(--transition);
}
.page-btn:hover,
.pagination .page-numbers:hover { border-color: var(--clr-accent); color: var(--clr-accent); }
.page-btn.active,
.pagination .page-numbers.current { background: var(--clr-accent); color: var(--clr-white); border-color: var(--clr-accent); }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  margin-top: 2rem;
}
.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 1.5rem;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2rem;
}
@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
}
@media (max-width: 480px) {
  .footer-inner { grid-template-columns: 1fr; }
}
.footer-col__title {
  font-size: .82rem;
  font-weight: 700;
  color: var(--clr-accent);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: .85rem;
}
.footer-col ul li { margin-bottom: .4rem; }
.footer-col ul li a { color: var(--clr-text-mid); font-size: .85rem; }
.footer-col ul li a:hover { color: var(--clr-accent); }
.footer-brand__desc { font-size: .82rem; color: var(--clr-text-dim); line-height: 1.55; margin-bottom: 1rem; }
.footer-socials { display: flex; gap: .5rem; }
.footer-socials a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  color: var(--clr-text-mid);
  font-size: .8rem;
  transition: all var(--transition);
}
.footer-socials a:hover { border-color: var(--clr-accent); color: var(--clr-accent); background: var(--clr-accent-soft); }
.footer-bottom {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--clr-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .78rem;
  color: var(--clr-text-dim);
}
@media (max-width: 600px) {
  .footer-bottom { flex-direction: column; gap: .5rem; text-align: center; }
}

/* ===== PAGE ===== */
.page-content {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 2rem;
  max-width: 800px;
}
.page-content h1 { margin-bottom: 1.25rem; font-size: 1.6rem; }

/* ===== 404 ===== */
.error-404 {
  text-align: center;
  padding: 4rem 1rem;
}
.error-404 h1 { font-size: 5rem; color: var(--clr-accent); margin-bottom: .5rem; }
.error-404 p { color: var(--clr-text-mid); margin-bottom: 1.5rem; }
.error-404 a {
  display: inline-block;
  padding: .65rem 1.5rem;
  background: var(--clr-accent);
  color: var(--clr-white);
  border-radius: var(--radius-sm);
  font-weight: 600;
}
.error-404 a:hover { background: var(--clr-accent-hover); color: var(--clr-white); }

/* ===== PRINT ===== */
@media print {
  .site-header, .site-footer, .ad-slot, .toc, .related-posts, .faq-section, .pagination-wrap, .sidebar-left, .sidebar-right, .cat-bar { display: none; }
  body { font-size: 12pt; color: #000; background: #fff; }
  .site-layout, .single-layout { display: block; }
}