/* ==========================================================================
   Startsidan (/) — hero-landning, tre "spår"-kort (ett per sektion),
   artikelförhandsvisning, "varför kylning.se".
   Ladda EFTER base.css + theme-flaktar.css (startsidans defaulttema).
   ========================================================================== */

/* Hero: större landningsvariant än sektionssidornas */
.hero { padding: 72px 20px 80px; }
.hero::before { content: ''; position: absolute; top: -80px; right: -80px; width: 320px; height: 320px; border-radius: 50%; border: 50px solid rgba(255,255,255,0.04); pointer-events: none; }
.hero::after  { content: ''; position: absolute; bottom: -100px; left: -60px; width: 260px; height: 260px; border-radius: 50%; border: 40px solid rgba(255,255,255,0.03); pointer-events: none; }
.hero-badge { margin-bottom: 24px; }
.hero h1 { font-size: clamp(30px, 5vw, 52px); line-height: 1.1; margin-bottom: 16px; }
.hero h1 strong { font-weight: 600; color: var(--accent-pale); }
.hero-sub { color: rgba(255,255,255,0.7); font-size: clamp(15px, 2vw, 18px); max-width: 520px; margin: 0 auto 48px; }

/* Tre spårkort — varje kort bär sin egen sektions tema oavsett startsidans tema */
.tracks { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.track { border-radius: var(--radius-lg); padding: 32px 28px 28px; text-align: left; text-decoration: none; display: flex; flex-direction: column; gap: 12px; position: relative; overflow: hidden; transition: transform 0.2s, box-shadow 0.2s; }
.track:hover { transform: translateY(-3px); }
.track-icon { width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.track-label { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 2px; }
.track h2 { font-size: 22px; font-weight: 500; line-height: 1.2; margin: 0; }
.track-desc { font-size: 14px; line-height: 1.6; flex: 1; }
.track-examples { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.track-tag { font-size: 12px; padding: 4px 10px; border-radius: 20px; white-space: nowrap; }
.track-cta { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 500; padding: 10px 20px; border-radius: var(--radius-sm); margin-top: 8px; align-self: flex-start; transition: background 0.15s; }

/* Fläktar & AC — ljust kort */
.track-rum { background: rgba(255,255,255,0.96); box-shadow: 0 8px 32px rgba(4,44,83,0.18); }
.track-rum:hover { box-shadow: 0 16px 48px rgba(4,44,83,0.28); }
.track-rum .track-icon { background: var(--blue-ghost); }
.track-rum .track-label { color: var(--blue); }
.track-rum h2 { color: var(--blue-dark); }
.track-rum .track-desc { color: var(--gray-mid); }
.track-rum .track-tag { background: var(--blue-ghost); color: var(--blue); }
.track-rum .track-cta { background: var(--blue); color: var(--white); }
.track-rum .track-cta:hover { background: var(--blue-mid); }

/* Datorkylning — mörkt tech-kort */
.track-pc { background: #1A1A2E; box-shadow: 0 8px 32px rgba(0,0,0,0.35); }
.track-pc:hover { box-shadow: 0 16px 48px rgba(0,0,0,0.5); }
.track-pc .track-icon { background: rgba(0,180,216,0.15); }
.track-pc .track-label { color: #00B4D8; }
.track-pc h2 { color: #ffffff; }
.track-pc .track-desc { color: rgba(255,255,255,0.6); }
.track-pc .track-tag { background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.7); }
.track-pc .track-cta { background: #00B4D8; color: #1A1A2E; }
.track-pc .track-cta:hover { background: #00C8F0; }

/* Inomhusklimat — grönt kort */
.track-im { background: #0A3D2E; box-shadow: 0 8px 32px rgba(10,61,46,0.35); }
.track-im:hover { box-shadow: 0 16px 48px rgba(10,61,46,0.5); }
.track-im .track-icon { background: rgba(52,201,148,0.15); }
.track-im .track-label { color: #34C994; }
.track-im h2 { color: #ffffff; }
.track-im .track-desc { color: rgba(255,255,255,0.6); }
.track-im .track-tag { background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.7); }
.track-im .track-cta { background: #34C994; color: #0A3D2E; }
.track-im .track-cta:hover { background: #45DBA8; }

/* Artikelförhandsvisning */
.articles { max-width: 1100px; margin: 60px auto 0; padding: 0 20px; }
.articles-header { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 20px; }
.articles-header h2 { font-size: 18px; font-weight: 500; color: var(--blue-dark); }
.articles-header a { font-size: 13px; color: var(--blue); text-decoration: none; }
.articles-header a:hover { text-decoration: underline; }
.articles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; min-height: 320px; }

.acard { background: var(--white); border: 1px solid var(--gray-pale); border-radius: var(--radius-lg); overflow: hidden; text-decoration: none; display: flex; flex-direction: column; transition: box-shadow 0.2s, transform 0.2s; }
.acard:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.acard-img { width: 100%; height: 160px; overflow: hidden; flex-shrink: 0; position: relative; }
.acard-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.3s ease; }
.acard:hover .acard-img img { transform: scale(1.03); }
.acard-img-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; }
.acard-img-placeholder svg { opacity: 0.25; width: 64px; height: 64px; }
.acard-img-placeholder-rum { background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue-light) 100%); }
.acard-img-placeholder-pc  { background: linear-gradient(135deg, #0D0D1A 0%, #0F3460 100%); }
.acard-img-placeholder-im  { background: linear-gradient(135deg, #0A3D2E 0%, #1D9E75 100%); }
.acard-top { height: 6px; flex-shrink: 0; }
.acard-top-rum { background: var(--blue); }
.acard-top-pc  { background: #00B4D8; }
.acard-top-im  { background: #34C994; }
.acard-body { padding: 20px 20px 22px; flex: 1; display: flex; flex-direction: column; gap: 8px; }
.acard-pill { display: inline-block; font-size: 11px; font-weight: 500; padding: 3px 10px; border-radius: 20px; align-self: flex-start; letter-spacing: 0.03em; }
.acard-pill-rum { background: var(--blue-ghost); color: var(--blue); }
.acard-pill-pc  { background: rgba(0,180,216,0.12); color: #007A9E; }
.acard-pill-im  { background: var(--teal-pale); color: #0F5C44; }
.acard h3 { font-size: 15px; font-weight: 500; color: var(--blue-dark); line-height: 1.35; margin: 0; }
.acard p { font-size: 13px; color: var(--gray-mid); line-height: 1.6; margin: 0; flex: 1; }
.acard-link { font-size: 13px; font-weight: 500; color: var(--blue); margin-top: 4px; }

/* Varför kylning.se */
.why { max-width: 1100px; margin: 60px auto 0; padding: 0 20px 80px; }
.why-header { text-align: center; margin-bottom: 36px; }
.why-header h2 { font-size: 22px; font-weight: 500; color: var(--blue-dark); margin-bottom: 8px; }
.why-header p { font-size: 15px; color: var(--gray-mid); }
.why-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.why-card { background: var(--white); border: 1px solid var(--gray-pale); border-radius: var(--radius-lg); padding: 24px; }
.why-icon { width: 40px; height: 40px; border-radius: 10px; background: var(--blue-ghost); display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.why-card h3 { font-size: 15px; font-weight: 500; color: var(--blue-dark); margin-bottom: 6px; }
.why-card p  { font-size: 13px; color: var(--gray-mid); line-height: 1.65; }

@media (max-width: 900px) { .tracks { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); } }
@media (max-width: 768px) {
  .hero { padding: 48px 16px 56px; }
  .hero-sub { margin-bottom: 32px; }
  .tracks { padding: 0 4px; gap: 12px; }
  .track { padding: 22px 18px 18px; }
  .track h2 { font-size: 19px; }
  .articles-grid { grid-template-columns: 1fr 1fr; }
  .why { padding: 48px 16px 60px; }
  .why-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .why-card { padding: 18px; }
}
@media (max-width: 640px) { .tracks { grid-template-columns: 1fr; gap: 14px; } }
@media (max-width: 480px) {
  .hero h1 { font-size: 28px; }
  .hero-sub { font-size: 14px; margin-bottom: 24px; }
  .hero-badge { font-size: 11px; padding: 4px 12px; }
  .track { padding: 20px 16px 16px; }
  .track h2 { font-size: 17px; }
  .track-desc { font-size: 13px; }
  .track-cta { font-size: 13px; padding: 9px 16px; }
  .track-tag { font-size: 11px; }
  .articles-grid { grid-template-columns: 1fr; }
  .acard-img { height: 120px; }
  .why-grid { grid-template-columns: 1fr; }
  .why-card { padding: 16px; }
  .why-header h2 { font-size: 19px; }
}