/* ==========================================================================
   usenet-provider.com – Design-System
   Basiert auf dem Claude-Design-Entwurf "Usenet Provider Vergleich".
   Fonts: Sora (Display) + Source Sans 3 (Text). Farbsystem in OKLCH.
   ========================================================================== */

:root {
  /* Flächen & Hintergründe */
  --color-bg: oklch(98% 0.005 250);
  --color-header-bg: oklch(99% 0.003 250);
  --color-surface: oklch(97% 0.006 250);
  --color-surface-tint: oklch(97% 0.02 250);
  --color-card-bg: oklch(100% 0 0);

  /* Rahmen */
  --color-border: oklch(90% 0.01 250);
  --color-border-soft: oklch(92% 0.008 250);
  --color-border-softer: oklch(93% 0.008 250);

  /* Text */
  --color-text: oklch(20% 0.01 250);
  --color-text-body: oklch(28% 0.01 250);
  --color-text-muted: oklch(48% 0.01 250);
  --color-text-faint: oklch(55% 0.01 250);

  /* Marke / Aktionen */
  --color-primary: oklch(45% 0.14 250);
  --color-primary-hover: oklch(38% 0.15 250);
  --color-cta: oklch(65% 0.19 45);
  --color-cta-hover: oklch(60% 0.19 45);

  /* Badges */
  --color-badge-green-bg: oklch(94% 0.03 145);
  --color-badge-green-text: oklch(38% 0.1 145);
  --color-badge-amber-bg: oklch(94% 0.03 85);
  --color-badge-amber-text: oklch(45% 0.12 70);

  /* Sterne / Bewertungen */
  --color-star-filled: oklch(80% 0.16 85);
  --color-star-empty: oklch(88% 0.01 250);

  /* Pro / Contra */
  --color-pros-bg: oklch(96% 0.025 145);
  --color-pros-text: oklch(35% 0.1 145);
  --color-cons-bg: oklch(96% 0.02 25);
  --color-cons-text: oklch(45% 0.12 25);

  --font-display: 'Sora', system-ui, sans-serif;
  --font-body: 'Source Sans 3', system-ui, sans-serif;

  --maxw: 1180px;
  --maxw-narrow: 780px;
  --maxw-article: 760px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 8px 24px rgba(0,0,0,0.04);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text-body);
  background: var(--color-bg);
  line-height: 1.6;
  font-size: 17px;
}

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 800; letter-spacing: -0.02em; color: var(--color-text); line-height: 1.25; }
h1 { font-size: clamp(1.9rem, 4vw, 2.75rem); margin: .3em 0 .5em; }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); margin: 1.6em 0 .5em; }
h3 { font-size: 1.25rem; margin: 1.4em 0 .4em; }
h4 { font-size: 1.05rem; margin: 0 0 .4em; }
p  { margin: 0 0 1em; color: var(--color-text-body); }

/* ==================== Header / Navigation ==================== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--color-header-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 0 rgba(0,0,0,0.02);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 66px; }

.brand { display: flex; align-items: center; gap: 10px; color: var(--color-text); flex-shrink: 0; }
.brand-icon {
  width: 34px; height: 34px; border-radius: 9px; flex-shrink: 0;
  background: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
}
.brand-icon span { width: 14px; height: 14px; border-radius: 50%; border: 3px solid white; display: block; }
.brand-name { font-family: var(--font-display); font-weight: 800; font-size: 20px; letter-spacing: -0.02em; white-space: nowrap; }

.main-nav ul { list-style: none; display: flex; align-items: center; gap: 22px; margin: 0; padding: 0; }
.main-nav a { color: var(--color-text); font-weight: 600; font-size: 15px; white-space: nowrap; }
.main-nav a:hover { color: var(--color-primary); }

/* --- Untermenü (z.B. Newsreader > Tangysoft) --- */
.main-nav li.has-submenu { position: relative; }
.main-nav .submenu-caret { font-size: 10px; margin-left: 2px; opacity: .6; display: inline-block; }
.main-nav .submenu {
  display: none;
  position: absolute; top: 100%; left: 0; margin: 10px 0 0; padding: 6px;
  list-style: none; min-width: 170px; z-index: 60;
  background: var(--color-card-bg); border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md); box-shadow: var(--shadow-card);
}
.main-nav li.has-submenu:hover .submenu,
.main-nav li.has-submenu:focus-within .submenu { display: block; }
/* Unsichtbare Hover-Brücke: schliesst die Lücke (margin-top) zwischen Nav-Link und
   Dropdown, damit der Mauszeiger beim Runterfahren nicht durch eine hoverlose Zone
   muss, bevor er das Dropdown erreicht (sonst schliesst es sich vor dem Klick). */
.main-nav .submenu::before { content: ""; position: absolute; top: -10px; left: 0; right: 0; height: 10px; }
.main-nav .submenu li { width: 100%; }
.main-nav .submenu a {
  display: block; padding: 8px 12px; border-radius: 6px;
  font-weight: 500; font-size: 14px; color: var(--color-text-body);
}
.main-nav .submenu a:hover { background: var(--color-surface); color: var(--color-primary); }

/* --- Mobile Burger-Toggle (Icon, Sichtbarkeit responsive weiter unten) --- */
.nav-toggle {
  display: none; flex-direction: column; justify-content: center; align-items: center;
  gap: 5px; width: 40px; height: 40px; border: none; background: transparent; cursor: pointer; padding: 0; flex-shrink: 0;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--color-text); border-radius: 2px; transition: transform .2s, opacity .2s; }
.site-header.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.site-header.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==================== Buttons ==================== */
.btn {
  display: inline-block; font-weight: 700; font-size: 14px;
  padding: 10px 18px; border-radius: var(--radius-sm);
  background: var(--color-cta); color: #fff;
}
.btn:hover { background: var(--color-cta-hover); color: #fff; }
.btn-primary { background: var(--color-primary); }
.btn-primary:hover { background: var(--color-primary-hover); }
.btn-block { display: block; text-align: center; }
.btn-lg { padding: 13px 22px; font-size: 15px; }

/* ==================== Hero ==================== */
.hero { max-width: var(--maxw); margin: 0 auto; padding: 56px 24px 40px; text-align: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--color-badge-green-bg); color: var(--color-badge-green-text);
  font-weight: 700; font-size: 13px; padding: 6px 14px; border-radius: 999px;
  margin-bottom: 20px;
}
.hero h1 { max-width: 780px; margin-left: auto; margin-right: auto; }
.hero p.lead { font-size: 18px; color: var(--color-text-muted); max-width: 620px; margin: 0 auto 28px; }

.hero-stats { display: flex; gap: 32px; justify-content: center; flex-wrap: wrap; }
.hero-stats .stat { text-align: center; }
.hero-stats .stat-value { font-family: var(--font-display); font-weight: 800; font-size: 28px; color: var(--color-primary); }
.hero-stats .stat-label { font-size: 13px; color: var(--color-text-muted); }

/* ==================== Content ==================== */
main { padding-bottom: 2.5rem; }
main .container { max-width: var(--maxw-article); }
.wide .container, main.wide .container { max-width: var(--maxw); }

/* ==================== Vergleichstabelle ==================== */
.compare-wrap {
  background: var(--color-card-bg); border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-card);
  overflow: hidden; margin: 1.5rem 0;
}
.compare-wrap .scroll { overflow-x: auto; }

.compare-table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.compare-table th, .compare-table td { padding: 16px 18px; text-align: left; vertical-align: top; }
.compare-table thead th {
  background: var(--color-surface); border-bottom: 1px solid var(--color-border);
  font-size: 12px; font-weight: 700; color: var(--color-text-muted);
  text-transform: uppercase; letter-spacing: 0.03em;
}
.compare-table tbody tr { border-bottom: 1px solid var(--color-border-softer); }
.compare-table tbody tr:last-child { border-bottom: none; }

.provider-cell { display: flex; align-items: center; gap: 10px; }
.provider-logo {
  width: 38px; height: 38px; border-radius: 9px; flex-shrink: 0;
  background: var(--color-primary); color: #fff;
  font-family: var(--font-display); font-weight: 800; font-size: 15px;
  display: flex; align-items: center; justify-content: center;
}
.provider-name { font-weight: 700; font-size: 15px; color: var(--color-text); }

.badge { display: inline-block; margin-top: 3px; font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 5px; }
.badge-green { background: var(--color-badge-green-bg); color: var(--color-badge-green-text); }
.badge-amber { background: var(--color-badge-amber-bg); color: var(--color-badge-amber-text); }
.badge-purple { background: oklch(94% 0.03 300); color: oklch(45% 0.12 300); }
.badge-neutral { background: var(--color-surface); color: var(--color-text-muted); border: 1px solid var(--color-border-soft); }

/* Betriebssystem-Filter (z.B. /newsreader/) */
.os-filter { display: flex; flex-wrap: wrap; gap: 8px; margin: 4px 0 24px; }
.os-filter button {
  padding: 8px 16px; border-radius: 999px; border: 1px solid var(--color-border);
  background: var(--color-surface); font-weight: 600; font-size: 13px; cursor: pointer; color: var(--color-text-body);
}
.os-filter button:hover { background: var(--color-surface-tint); }
.os-filter button.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.newsreader-card .nr-meta { font-size: 12px; color: var(--color-text-muted); margin: 4px 0 10px; }
.newsreader-card ul { margin: 10px 0 0; padding-left: 18px; font-size: 13px; }
.newsreader-card ul li { margin-bottom: 4px; }
.nr-vendor-link { margin: 10px 0 0; font-size: 13px; font-weight: 600; }

.stars { display: inline-flex; gap: 2px; }
.stars .filled { color: var(--color-star-filled); }
.stars .empty { color: var(--color-star-empty); }

.table-note { font-size: 12px; color: var(--color-text-faint); margin-top: 12px; }

/* ==================== Cards ==================== */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.card {
  background: var(--color-card-bg); border: 1px solid var(--color-border-soft);
  border-radius: 14px; padding: 24px; box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

/* Pro/Contra Grid (Anbieter-Reviews) */
.pros-cons { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 1rem 0; }
.pros-cons .pros, .pros-cons .cons { border-radius: var(--radius-md); padding: 18px 20px; }
.pros-cons .pros { background: var(--color-pros-bg); }
.pros-cons .cons { background: var(--color-cons-bg); }
.pros-cons .pros-title { font-weight: 700; font-size: 14px; color: var(--color-pros-text); margin-bottom: 10px; }
.pros-cons .cons-title { font-weight: 700; font-size: 14px; color: var(--color-cons-text); margin-bottom: 10px; }
.pros-cons ul { margin: 0; padding-left: 18px; font-size: 14px; }
.pros-cons li { margin-bottom: 6px; }

@media (max-width: 640px) {
  .pros-cons { grid-template-columns: 1fr; }
}

/* Technische-Daten Spec-Liste */
.spec-list { border: 1px solid var(--color-border-soft); border-radius: var(--radius-md); overflow: hidden; margin: 1rem 0; }
.spec-list .spec-row {
  display: flex; justify-content: space-between; padding: 12px 18px;
  border-bottom: 1px solid var(--color-border-softer); font-size: 14px;
}
.spec-list .spec-row:last-child { border-bottom: none; }
.spec-list .spec-label { color: var(--color-text-muted); }
.spec-list .spec-value { font-weight: 700; color: var(--color-text); }

/* ==================== Teaser-Box ==================== */
.teaser-box {
  background: var(--color-surface-tint); border-radius: var(--radius-lg); padding: 40px;
  display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
}
.teaser-box .eyebrow { font-size: 13px; font-weight: 700; color: var(--color-primary); text-transform: uppercase; letter-spacing: 0.04em; }
.teaser-box h3 { margin: 6px 0 10px; }

/* ==================== FAQ ==================== */
.faq-list { display: flex; flex-direction: column; gap: 10px; }
.faq details {
  background: var(--color-card-bg); border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md); overflow: hidden; padding: 0;
}
.faq summary {
  font-weight: 700; font-size: 15px; cursor: pointer; list-style: none;
  padding: 16px 20px; display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; font-size: 20px; color: var(--color-text-faint); }
.faq details[open] summary::after { content: '−'; }
.faq details p { padding: 0 20px 18px; margin: 0; font-size: 14px; color: var(--color-text-body); }

/* ==================== Anbieter-Review-Seiten ==================== */
.review-hero { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-bottom: 4px; }
.review-hero .provider-logo-lg {
  width: 64px; height: 64px; border-radius: 14px; flex-shrink: 0;
  color: #fff; font-family: var(--font-display); font-weight: 800; font-size: 22px;
  display: flex; align-items: center; justify-content: center;
}
.review-hero h1 { margin: 0; }
.review-meta { display: flex; align-items: center; gap: 10px; margin-top: 14px; flex-wrap: wrap; font-size: 14px; color: var(--color-text-muted); }
.review-meta .stars { font-size: 18px; }

.review-layout { display: grid; grid-template-columns: 1fr 300px; gap: 32px; align-items: start; margin-top: 1.5rem; }
.review-main { min-width: 0; }
.review-sidebar {
  position: sticky; top: 88px; background: var(--color-card-bg);
  border: 1px solid var(--color-border-soft); border-radius: 14px; padding: 22px;
  box-shadow: var(--shadow-card);
}
.review-sidebar .price { font-family: var(--font-display); font-weight: 800; font-size: 26px; margin-bottom: 2px; }
.review-sidebar .price-note { font-size: 13px; color: var(--color-text-muted); margin-bottom: 18px; }

/* Streichpreis: Aktionspreis bleibt gross (.price / Preis-Zelle), Originalpreis kleiner + durchgestrichen darunter */
.price-old { text-decoration: line-through; color: var(--color-text-faint); font-size: .85em; font-weight: 500; margin-top: 2px; }

/* Promo-Bereich (Backend: pro Anbieter optional befuellbar) - prominent auf der Anbieter-Seite */
.promo-banner {
  background: linear-gradient(135deg, var(--color-cta) 0%, oklch(58% 0.2 30) 100%);
  color: #fff; border-radius: var(--radius-lg); padding: 24px 28px; margin: 20px 0 28px;
  box-shadow: var(--shadow-card);
}
.promo-banner .promo-banner-label {
  display: inline-block; background: rgba(255,255,255,0.22); color: #fff; font-size: 12px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .04em; padding: 4px 10px; border-radius: 999px; margin-bottom: 10px;
}
.promo-banner h2 { color: #fff; margin: 0 0 8px; }
.promo-banner p { color: rgba(255,255,255,0.92); margin: 0 0 16px; }
.promo-banner .btn { background: #fff; color: var(--color-cta-hover); }
.promo-banner .btn:hover { background: rgba(255,255,255,0.9); color: var(--color-cta-hover); }
.review-sidebar .trial-note { text-align: center; font-size: 12px; color: var(--color-text-faint); margin-top: 10px; }
.review-sidebar hr { border: none; height: 1px; background: var(--color-border-softer); margin: 18px 0; }
.review-sidebar .fine-print { font-size: 12px; color: var(--color-text-faint); }

.quick-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin: 1.5rem 0; }
.quick-facts .fact { background: var(--color-surface); border: 1px solid var(--color-border-softer); border-radius: var(--radius-md); padding: 14px 16px; }
.quick-facts .fact-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .03em; color: var(--color-text-muted); margin-bottom: 4px; }
.quick-facts .fact-value { font-weight: 700; font-size: 15px; color: var(--color-text); }

@media (max-width: 860px) {
  .review-layout { grid-template-columns: 1fr; }
  .review-sidebar { position: static; }
}

/* ==================== Filter-Chip (kompakt, für Tabellen-Filter) ==================== */
.filter-bar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.filter-bar-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--color-text-faint); }
.filter-chip { position: relative; display: inline-flex; cursor: pointer; }
.filter-chip input { position: absolute; opacity: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.filter-chip span {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 10px; border: 1px solid var(--color-border); border-radius: 999px;
  font-size: 12.5px; font-weight: 600; color: var(--color-text-body);
  background: var(--color-card-bg);
  transition: background .15s, border-color .15s, color .15s;
}
.filter-chip svg { width: 11px; height: 11px; flex-shrink: 0; opacity: .6; }
.filter-chip:hover span { border-color: var(--color-primary); }
.filter-chip input:checked + span { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.filter-chip input:checked + span svg { opacity: 1; }
.filter-chip input:focus-visible + span { outline: 2px solid var(--color-primary); outline-offset: 2px; }

/* ==================== Anbieter-Finder ==================== */
.finder {
  background: var(--color-card-bg); border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-card);
  padding: 32px; margin: 1.5rem 0 2.5rem;
}
.finder h2 { margin-top: 0; }
.finder-intro { margin-bottom: 24px; }
.finder-question { margin-bottom: 24px; }
.finder-question-label { font-weight: 700; margin-bottom: 10px; display: block; font-size: 15px; }
.finder-options { display: flex; flex-wrap: wrap; gap: 10px; }
.finder-option { position: relative; cursor: pointer; }
.finder-option input { position: absolute; opacity: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.finder-option span {
  display: inline-block; padding: 10px 16px; border: 1px solid var(--color-border);
  border-radius: 999px; font-size: 14px; font-weight: 600; color: var(--color-text-body);
  transition: background .15s, border-color .15s, color .15s;
}
.finder-option:hover span { border-color: var(--color-primary); }
.finder-option input:checked + span { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.finder-option input:focus-visible + span { outline: 2px solid var(--color-primary); outline-offset: 2px; }

.finder-results { margin-top: 28px; border-top: 1px solid var(--color-border-soft); padding-top: 24px; }
.finder-results.hidden { display: none; }
.finder-results h3 { margin: 0 0 4px; }
.finder-result-list { display: flex; flex-direction: column; gap: 10px; margin-top: 14px; }
.finder-result-item {
  padding: 14px 18px; border: 1px solid var(--color-border-soft); border-radius: var(--radius-md);
}
.finder-result-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.finder-result-item .provider-cell { flex: 1; }
.finder-result-facts {
  display: flex; flex-wrap: wrap; gap: 6px 18px;
  margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--color-border-softer);
}
.finder-result-facts .fmini { font-size: 12.5px; color: var(--color-text-body); }
.finder-result-facts .fmini-label { color: var(--color-text-faint); margin-right: 4px; }
.finder-result-facts .fmini-value { font-weight: 700; color: var(--color-text); }
.finder-empty { color: var(--color-text-muted); font-size: 14px; margin: 0; }

/* ==================== Footer ==================== */
.site-footer { border-top: 1px solid var(--color-border); background: var(--color-surface); margin-top: 3rem; }
.site-footer .container { padding: 40px 24px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 24px; max-width: var(--maxw); }
.site-footer .footer-brand { max-width: 420px; }
.site-footer .footer-brand .brand-name { font-size: 18px; margin-bottom: 8px; display: block; }
.site-footer .footer-brand p { font-size: 13px; color: var(--color-text-muted); margin: 0; }
.site-footer nav ul { list-style: none; display: flex; flex-direction: column; gap: 8px; padding: 0; margin: 0; font-size: 14px; }
.site-footer nav a { color: var(--color-text-body); }
.footer-col-title { font-weight: 700; font-size: 13px; text-transform: uppercase; letter-spacing: 0.03em; color: var(--color-text-muted); margin-bottom: 10px; }
.footer-bottom { text-align: center; font-size: 12px; color: var(--color-text-faint); padding: 16px 24px; border-top: 1px solid var(--color-border-softer); }

/* ==================== Utilities ==================== */
.text-muted { color: var(--color-text-muted); }
.eyebrow { font-size: 13px; font-weight: 700; color: var(--color-primary); text-transform: uppercase; letter-spacing: 0.04em; }

/* ==================== Responsive ==================== */
@media (max-width: 980px) {
  .nav-toggle { display: flex; }
  .header-cta { display: none; }

  .main-nav {
    display: none;
    position: fixed; top: 66px; left: 0; right: 0; bottom: 0;
    background: var(--color-card-bg); border-top: 1px solid var(--color-border);
    overflow-y: auto; padding: 12px 20px 24px; z-index: 55;
  }
  .site-header.nav-open .main-nav { display: block; }

  .main-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .main-nav li.has-submenu { position: static; }
  .main-nav a { display: block; padding: 14px 4px; border-bottom: 1px solid var(--color-border-softer); }

  /* Hover-Verhalten deaktivieren, auf Touch gibt es keinen echten Hover -> Klick-Akkordeon */
  .main-nav li.has-submenu:hover .submenu,
  .main-nav li.has-submenu:focus-within .submenu { display: none; }
  .main-nav .submenu::before { content: none; }

  .main-nav .submenu {
    display: none; position: static; box-shadow: none; border: none; background: transparent;
    margin: 0 0 4px 14px; padding: 0;
  }
  .main-nav li.has-submenu.open .submenu { display: block; }
  .main-nav li.has-submenu.open > a .submenu-caret { transform: rotate(180deg); }
  .main-nav .submenu-caret { transition: transform .2s; }
  .main-nav .submenu a { padding: 10px 4px; border-bottom: none; }
}
@media (max-width: 720px) {
  .site-header .container { height: 58px; }
  .main-nav { top: 58px; }
  .teaser-box { padding: 28px; }
}