/* ===== SOH-TEST.DE – Globales Stylesheet ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --green:       #1D9E75;
  --green-light: #E1F5EE;
  --green-dark:  #000033;
  --teal:        #000055;
  --navy:        #000033;
  --navy-light:  #e8e8f0;
  --amber:       #BA7517;
  --amber-light: #FAEEDA;
  --text:        #1C1C1A;
  --muted:       #5F5E5A;
  --bg:          #F8F6F1;
  --white:       #FFFFFF;
  --border:      rgba(0,0,0,0.09);
  --radius:      14px;
  --radius-lg:   22px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Lora', Georgia, serif;
  background: var(--bg);
  color: var(--text);
  font-size: 17px;
  line-height: 1.7;
}

/* ── NAVIGATION ── */
nav {
  position: sticky; top: 0; z-index: 200;
  background: rgba(248,246,241,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1120px; margin: 0 auto;
  display: flex; align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  height: 68px;
}
.logo {
  font-family: 'Playfair Display', serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--green-dark);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.logo span { color: var(--green); }
.nav-links { display: flex; align-items: center; gap: 0.2rem; list-style: none; }
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  padding: 8px 14px;
  border-radius: 8px;
  transition: color 0.18s, background 0.18s;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--green-dark);
  background: var(--green-light);
}
.nav-cta {
  background: var(--navy) !important;
  color: #fff !important;
  padding: 9px 22px !important;
  border-radius: 100px !important;
  font-weight: 500 !important;
}
.nav-cta:hover { background: var(--teal) !important; }

/* ── LAYOUT ── */
.page-wrap { max-width: 1120px; margin: 0 auto; padding: 0 1.5rem; }
.section    { padding: 80px 0; }
.section-sm { padding: 56px 0; }

/* ── TYPOGRAPHY / SEO H-TAGS ── */
h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--text);
}
h1 em { color: var(--green); font-style: italic; }

h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.5rem, 3.5vw, 2.4rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 0.6rem;
}

h3 {
  font-family: 'DM Sans', sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.4rem;
}

h4 {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--green);
  margin-bottom: 0.5rem;
}

p { color: var(--muted); margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

a { color: var(--green); }

/* ── COMPONENTS ── */
.badge {
  display: inline-block;
  background: var(--green-light);
  color: var(--green-dark);
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 1.2rem;
  letter-spacing: 0.04em;
}

.btn {
  display: inline-block;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 16px;
  padding: 14px 34px;
  border-radius: 100px;
  text-decoration: none;
  transition: transform 0.15s, background 0.18s;
  cursor: pointer;
  border: none;
}
.btn:hover { transform: translateY(-1px); }
.btn-green { background: var(--green); color: #fff; }
.btn-green:hover { background: var(--teal); }
.btn-outline { background: transparent; color: var(--text); border: 1.5px solid var(--border); }
.btn-outline:hover { border-color: var(--green); color: var(--green); }

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

/* ── HERO ── */
.hero {
  padding: 90px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  top: -100px; right: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(29,158,117,0.07) 0%, transparent 65%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 60px;
  align-items: center;
}
.hero-text h1 { margin-bottom: 1.2rem; }
.hero-text p  { font-size: 1.1rem; max-width: 500px; margin-bottom: 2rem; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ── PROBLEM VISUAL BOX ── */
.problem-box {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
}
.problem-box-title {
  font-family: 'DM Sans', sans-serif;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 1rem;
}
.soh-meter {
  text-align: center;
  padding: 1rem 0;
}
.soh-big {
  font-family: 'Playfair Display', serif;
  font-size: 5.5rem;
  line-height: 1;
  color: var(--green);
  font-weight: 700;
}
.soh-big .unit { font-size: 2.5rem; }
.soh-desc { font-family: 'DM Sans', sans-serif; font-size: 13px; color: var(--muted); margin-top: 4px; }
.bar-track {
  height: 10px;
  background: var(--green-light);
  border-radius: 100px;
  margin: 1.2rem 0;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  border-radius: 100px;
  background: linear-gradient(90deg, var(--green), #5DCAA5);
  transition: width 1.5s ease;
}
.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 1rem;
}
.stat-cell {
  background: var(--bg);
  border-radius: 10px;
  padding: 10px 12px;
}
.stat-cell .val {
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}
.stat-cell .key {
  font-family: 'DM Sans', sans-serif;
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
}
.cert-row {
  display: flex; align-items: center; gap: 12px;
  background: var(--green-light);
  border-radius: 12px;
  padding: 12px 16px;
  margin-top: 1.2rem;
}
.cert-icon {
  width: 36px; height: 36px; flex-shrink: 0;
  background: var(--green);
  border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
}
.cert-icon svg { fill: #fff; }
.cert-text { font-family: 'DM Sans', sans-serif; }
.cert-text strong { font-size: 14px; color: var(--green-dark); display: block; }
.cert-text span   { font-size: 12px; color: var(--teal); }

/* ── GRID LAYOUTS ── */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

/* ── STEPS / PROCESS ── */
.steps-list { list-style: none; counter-reset: step; }
.steps-list li {
  counter-increment: step;
  display: flex; gap: 1.2rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}
.steps-list li:last-child { border-bottom: none; }
.step-num {
  flex-shrink: 0;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--green-light);
  color: var(--green-dark);
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.step-num::before { content: counter(step); }

/* ── FAQ ACCORDION ── */
details {
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
}
details:first-of-type { border-top: 1px solid var(--border); }
summary {
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  display: flex; justify-content: space-between; align-items: center;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--green);
  transition: transform 0.2s;
}
details[open] summary::after { transform: rotate(45deg); }
details p { margin-top: 0.8rem; font-size: 15px; }

/* ── TABLE ── */
.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
}
th {
  background: var(--green-light);
  color: var(--green-dark);
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
}
td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  vertical-align: top;
}
tr:last-child td { border-bottom: none; }
tr:nth-child(even) td { background: rgba(248,246,241,0.6); }

/* ── HIGHLIGHT BOX ── */
.highlight {
  background: var(--green-light);
  border-left: 4px solid var(--green);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.2rem 1.5rem;
  margin: 1.5rem 0;
}
.highlight p { color: var(--green-dark); }

.warning {
  background: var(--amber-light);
  border-left: 4px solid var(--amber);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.2rem 1.5rem;
  margin: 1.5rem 0;
}
.warning p { color: #633806; }

/* ── CTA SECTION ── */
.cta-section {
  background: var(--navy);
  color: #fff;
  text-align: center;
  padding: 80px 1.5rem;
}
.cta-section h2 { color: #fff; margin-bottom: 1rem; }
.cta-section p  { color: rgba(255,255,255,0.7); max-width: 520px; margin: 0 auto 2rem; }
.btn-white { background: #fff; color: var(--green-dark); }
.btn-white:hover { background: var(--green-light); }

/* ── FOOTER ── */
footer {
  background: var(--navy);
  color: rgba(255,255,255,0.55);
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  padding: 48px 1.5rem 32px;
}
.footer-inner {
  max-width: 1120px; margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .logo { color: #fff; }
.footer-brand p { color: rgba(255,255,255,0.45); margin-top: 0.8rem; font-size: 14px; }
footer h5 { color: #fff; font-weight: 600; margin-bottom: 1rem; font-size: 14px; }
footer ul { list-style: none; }
footer ul li { margin-bottom: 0.5rem; }
footer ul a { color: rgba(255,255,255,0.55); text-decoration: none; }
footer ul a:hover { color: var(--green); }
.footer-bottom {
  max-width: 1120px; margin: 1.5rem auto 0;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 0.5rem;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: repeat(3,1fr); }
  .footer-inner { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}