/* GRK Gereke — Wissensbereich IAB: seitenspezifische Ergänzungen zu styles.css */

/* ---------- Subhero (gleiches Bildsystem wie Homepage) ---------- */
.grk-subhero {
  position: relative;
  min-height: 480px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-image: url('/assets/hero-station.jpg?v=20260829');
  background-size: cover;
  background-position: center 64%;
}
.grk-subhero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(5,12,24,0.68) 0%, rgba(5,12,24,0.44) 40%, rgba(5,12,24,0.18) 65%, rgba(5,12,24,0.08) 85%);
  z-index: 1;
}
.grk-subhero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(8,18,44,0.55) 0%, transparent 20%),
    linear-gradient(rgba(10,20,50,0.18), rgba(10,20,50,0.18)),
    linear-gradient(to bottom, transparent 0%, transparent 50%, rgba(5,12,24,0.10) 80%, rgba(5,12,24,0.18) 100%);
  z-index: 1;
}
.grk-subhero-inner {
  position: relative;
  z-index: 2;
  padding: 190px var(--gutter) 80px;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
}
.grk-subhero h1 {
  color: white;
  font-size: clamp(30px, 4.8vw, 56px);
  font-weight: 300;
  letter-spacing: -0.032em;
  line-height: 1.08;
  margin-bottom: 16px;
}
.grk-subhero p {
  color: rgba(255,255,255,0.82);
  font-size: 15px;
  max-width: 520px;
  line-height: 1.80;
}
@media (max-width: 768px) {
  .grk-subhero { min-height: 380px; }
  .grk-subhero-inner { padding: 150px 24px 48px; }
}

/* ---------- Anker-Chips ---------- */
.grk-chipnav {
  background: rgba(255,255,255,0.97);
  border-bottom: 1px solid var(--gray-200);
  position: sticky;
  top: 0;
  z-index: 900;
}
.grk-chipnav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 12px var(--gutter);
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.grk-chipnav a {
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-500);
  padding: 7px 14px;
  border: 1px solid var(--gray-200);
  border-radius: 3px;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.grk-chipnav a:hover { border-color: var(--blue-mid); color: var(--blue-mid); }
@media (max-width: 768px) {
  .grk-chipnav-inner { padding: 10px 16px; overflow-x: auto; flex-wrap: nowrap; }
}

/* ---------- Persona-Karten ---------- */
.grk-persona-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--gray-200);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  overflow: hidden;
}
@media (max-width: 900px) { .grk-persona-grid { grid-template-columns: 1fr; } }
.grk-persona {
  background: var(--white);
  padding: 40px 36px;
  position: relative;
  transition: background-color 0.25s ease;
}
.grk-persona::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--blue-mid);
}
.grk-persona:hover { background: var(--off-white); }
.grk-persona .who {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-mid);
  display: block;
  margin-bottom: 14px;
}
.grk-persona h3 { font-size: 20px; margin-bottom: 12px; }
.grk-persona p { font-size: 14.5px; line-height: 1.8; color: var(--gray-500); margin-bottom: 18px; }
.grk-persona .pain {
  font-size: 13.5px;
  color: var(--gray-700);
  background: var(--gray-100);
  border-radius: 4px;
  padding: 12px 14px;
  line-height: 1.7;
}
.grk-persona .pain strong { color: var(--navy); font-weight: 600; }

/* ---------- Rechner-Einbettung ---------- */
.grk-tool-wrap {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(13,27,46,0.06);
}
.grk-tool-wrap iframe {
  display: block;
  width: 100%;
  border: none;
  min-height: 900px;
}
.grk-tool-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 14px 20px;
  background: var(--off-white);
  border-bottom: 1px solid var(--gray-200);
}
.grk-tool-bar .t {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray-500);
}
.grk-tool-bar a { font-size: 13px; color: var(--blue); text-decoration: none; font-weight: 500; }
.grk-tool-bar a:hover { color: var(--blue-mid); }

/* ---------- Wissensthemen (Akkordeon-Artikel) ---------- */
.grk-topics { display: flex; flex-direction: column; gap: 1px; background: var(--gray-200); border: 1px solid var(--gray-200); border-radius: 8px; overflow: hidden; }
.grk-topic { background: var(--white); }
.grk-topic-head {
  display: grid;
  grid-template-columns: 56px 1fr 24px;
  gap: 20px;
  align-items: center;
  padding: 24px 28px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}
.grk-topic-head:hover { background: var(--off-white); }
.grk-topic-head .num { font-size: 22px; font-weight: 300; color: var(--blue-mid); }
.grk-topic-head h3 { font-size: 18px; margin-bottom: 2px; }
.grk-topic-head .sub { font-size: 13px; color: var(--gray-400); }
.grk-topic-head .tgl { font-size: 22px; font-weight: 300; color: var(--blue-mid); transition: transform 0.25s ease; line-height: 1; text-align: center; }
.grk-topic.open .grk-topic-head .tgl { transform: rotate(45deg); }
.grk-topic-body {
  display: none;
  padding: 4px 28px 32px 104px;
}
.grk-topic.open .grk-topic-body { display: block; }
.grk-topic-body p { font-size: 14.5px; line-height: 1.9; color: var(--gray-700); }
.grk-topic-body p + p { margin-top: 14px; }
.grk-topic-body ul { margin: 14px 0 0; padding-left: 0; list-style: none; display: flex; flex-direction: column; gap: 10px; }
.grk-topic-body ul li { font-size: 14px; line-height: 1.7; color: var(--gray-700); display: flex; gap: 10px; }
.grk-topic-body ul li::before { content: '—'; color: var(--blue-mid); flex-shrink: 0; }
.grk-topic-body .note { font-size: 12.5px; color: var(--gray-400); margin-top: 16px; line-height: 1.7; }
@media (max-width: 768px) {
  .grk-topic-head { grid-template-columns: 36px 1fr 20px; padding: 18px 18px; }
  .grk-topic-body { padding: 0 18px 24px 18px; }
}

/* ---------- Leadmagnet-Band (Navy) ---------- */
.grk-lm {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%);
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr minmax(300px, 380px);
  gap: 48px;
  align-items: center;
  padding: 44px 48px;
  box-shadow: 0 4px 24px rgba(13,27,46,0.07);
}
.grk-lm::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--blue-mid); }
@media (max-width: 900px) { .grk-lm { grid-template-columns: 1fr; gap: 28px; padding: 32px 24px; } }
.grk-lm .kicker {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #9cbce6;
  display: block;
  margin-bottom: 12px;
}
.grk-lm h2 { font-size: clamp(22px, 2.3vw, 29px); font-weight: 400; color: #fff; margin-bottom: 10px; letter-spacing: -0.022em; line-height: 1.2; }
.grk-lm .desc { font-size: 14px; line-height: 1.65; color: rgba(255,255,255,0.62); max-width: 540px; }
.grk-lm ul { list-style: none; margin: 18px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 12px 24px; }
@media (max-width: 640px) { .grk-lm ul { grid-template-columns: 1fr; } }
.grk-lm ul li { display: flex; gap: 9px; align-items: flex-start; font-size: 13px; color: rgba(255,255,255,0.78); line-height: 1.45; }
.grk-lm ul li::before {
  content: '';
  width: 14px; height: 14px;
  flex-shrink: 0;
  margin-top: 2px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M13.5 4.5l-7 7-3-3' stroke='%239cbce6' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}
.grk-lm-form { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.10); border-radius: 10px; padding: 24px; }
.grk-lm-form label { display: block; font-size: 12px; font-weight: 600; color: rgba(255,255,255,0.70); margin-bottom: 8px; letter-spacing: 0.04em; }
.grk-lm-form input[type="email"], .grk-lm-form input[type="text"] {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 6px;
  background: rgba(255,255,255,0.94);
  font-size: 14.5px;
  font-family: inherit;
  color: var(--navy);
  margin-bottom: 12px;
}
.grk-lm-form input[type="email"]:focus, .grk-lm-form input[type="text"]:focus { outline: 2px solid var(--blue-mid); }
.grk-lm-form button {
  width: 100%;
  padding: 13px 20px;
  background: var(--blue-mid);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background-color 0.2s ease;
}
.grk-lm-form button:hover { background: #3d6cbd; }
.grk-lm-form .fine { font-size: 11px; color: rgba(255,255,255,0.42); line-height: 1.6; margin-top: 12px; }
.grk-lm-form .fine a { color: rgba(255,255,255,0.6); }

/* ---------- Download-Bibliothek ---------- */
.grk-dl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 1000px) { .grk-dl-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grk-dl-grid { grid-template-columns: 1fr; } }
.grk-dl {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.grk-dl:hover { border-color: var(--blue-mid); box-shadow: 0 4px 16px rgba(13,27,46,0.07); }
.grk-dl .meta { font-size: 10.5px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gray-400); }
.grk-dl h3 { font-size: 16px; font-weight: 500; }
.grk-dl p { font-size: 13px; color: var(--gray-500); line-height: 1.65; flex: 1; }
.grk-dl a, .grk-dl .locked {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--blue);
  text-decoration: none;
  margin-top: 8px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.grk-dl a:hover { color: var(--blue-mid); }
.grk-dl .locked { color: var(--gray-400); cursor: pointer; }
.grk-dl .locked:hover { color: var(--blue-mid); }
body:not(.grk-unlocked) .grk-dl a.gate { display: none; }
body.grk-unlocked .grk-dl .locked { display: none; }

/* ---------- Glossar ---------- */
.grk-glossar-tools { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-bottom: 28px; }
.grk-glossar-search {
  flex: 1;
  min-width: 240px;
  padding: 13px 16px;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text-primary);
  background: #fff;
}
.grk-glossar-search:focus { outline: none; border-color: var(--blue-mid); }
.grk-glossar-cats { display: flex; gap: 4px; background: var(--gray-100); padding: 4px; border-radius: 4px; flex-wrap: wrap; }
.grk-glossar-cat {
  padding: 9px 16px;
  background: transparent;
  color: var(--gray-500);
  border: none;
  border-radius: 3px;
  font-weight: 500;
  cursor: pointer;
  font-size: 13.5px;
  font-family: var(--font);
  transition: all 0.2s ease;
}
.grk-glossar-cat:hover { color: var(--navy); }
.grk-glossar-cat.active { background: white; color: var(--navy); box-shadow: 0 1px 3px rgba(13,27,46,0.05); }
.grk-glossar-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--gray-200); border: 1px solid var(--gray-200); border-radius: 8px; overflow: hidden; }
@media (max-width: 768px) { .grk-glossar-grid { grid-template-columns: 1fr; } }
.grk-glossar-item { background: #fff; padding: 20px 24px; }
.grk-glossar-item .term { font-size: 15px; font-weight: 600; color: var(--navy); margin-bottom: 6px; display: flex; justify-content: space-between; gap: 12px; align-items: baseline; }
.grk-glossar-item .cat {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue-mid);
  white-space: nowrap;
  flex-shrink: 0;
}
.grk-glossar-item .def { font-size: 13.5px; color: var(--gray-700); line-height: 1.75; }
.grk-glossar-empty { padding: 40px; text-align: center; color: var(--gray-400); font-size: 14px; background: #fff; grid-column: 1 / -1; }
.grk-glossar-count { font-size: 12.5px; color: var(--gray-400); margin-bottom: 14px; }