/* BLACK OBSIDIAN HOLDING AS — tofort-active.shop
   Unique Dark Elegant + Split Content Blog Style
   Deep charcoal + gold accent + warm cream text
   12px radius, elegant shadows, modern luxury feel
*/

:root {
  --bg: #0F0F11;
  --surface: #1A1A1E;
  --text: #F4F4F5;
  --muted: #A1A1AA;
  --accent: #C9A227;
  --accent-glow: rgba(201, 162, 39, 0.15);
  --border: #2A2A2F;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  --radius: 12px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent);
}

/* Header - Dark Elegant */
.header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 22px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.logo span {
  color: var(--accent);
}

.nav {
  display: flex;
  gap: 34px;
  font-size: 15px;
  font-weight: 500;
}

.nav a {
  color: var(--muted);
}

.nav a:hover {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text);
}

/* Hero - Split Content Style */
.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 80px 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content h1 {
  font-size: 52px;
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-content p {
  font-size: 18.5px;
  color: var(--muted);
  max-width: 520px;
  margin-bottom: 36px;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--accent);
  color: #0F0F11;
  padding: 16px 34px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  transition: all 0.3s ease;
}

.hero-cta:hover {
  background: #E8C36B;
  transform: translateY(-2px);
}

.hero-visual {
  background: linear-gradient(135deg, #1A1A1E 0%, #25252A 100%);
  border-radius: var(--radius);
  height: 420px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 40% 30%, var(--accent-glow) 0%, transparent 70%);
}

/* Long Intro */
.intro {
  max-width: 820px;
  margin: 0 auto 80px;
  padding: 0 40px;
}

.intro p {
  font-size: 17px;
  color: #D4D4D8;
  margin-bottom: 1.35em;
}

/* Articles Grid */
.section-header {
  max-width: var(--max-width);
  margin: 0 auto 32px;
  padding: 0 40px;
}

.section-header h2 {
  font-size: 30px;
  font-weight: 700;
}

.articles-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px 80px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.article-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.3s ease;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  border-color: var(--accent);
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.article-card .tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  background: #2A2A2F;
  color: var(--accent);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.article-card h3 {
  font-size: 21px;
  line-height: 1.3;
  font-weight: 700;
  margin-bottom: 14px;
}

.article-card p {
  color: #A1A1AA;
  font-size: 15.5px;
  line-height: 1.65;
  flex: 1;
  margin-bottom: 20px;
}

.article-card .meta {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.article-card .meta a {
  color: var(--accent);
  font-weight: 600;
}

/* Article Page */
.article-page {
  max-width: 780px;
  margin: 60px auto;
  padding: 0 40px;
}

.article-page h1 {
  font-size: 38px;
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: 16px;
}

.article-content {
  font-size: 17.5px;
  line-height: 1.8;
  color: #D4D4D8;
}

.article-content p {
  margin-bottom: 1.4em;
}

.article-content h2 {
  font-size: 26px;
  margin: 2.2em 0 1em;
  color: var(--text);
}

.back-link {
  display: inline-flex;
  margin-top: 50px;
  color: var(--accent);
  font-weight: 600;
}

/* Contact Form */
.form-section {
  max-width: 620px;
  margin: 60px auto;
  padding: 0 40px;
}

.form-section h1 {
  font-size: 34px;
  margin-bottom: 14px;
}

.contact-form {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.contact-form label {
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 16px;
  background: var(--surface);
  color: var(--text);
  transition: all 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.contact-form textarea {
  min-height: 160px;
  resize: vertical;
}

.contact-form button {
  align-self: flex-start;
  background: var(--accent);
  color: #0F0F11;
  border: none;
  padding: 16px 40px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s;
}

.contact-form button:hover {
  background: #E8C36B;
  transform: translateY(-2px);
}

/* Thank You */
.thankyou {
  max-width: 680px;
  margin: 80px auto;
  padding: 0 40px;
  text-align: center;
}

.thankyou h1 {
  font-size: 40px;
  margin-bottom: 18px;
}

.thankyou .disclaimer {
  margin-top: 50px;
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 28px;
  border-radius: var(--radius);
  font-size: 14px;
  color: #A1A1AA;
  line-height: 1.65;
}

/* Footer */
.footer {
  background: #111113;
  color: #71717A;
  padding: 60px 40px 40px;
  font-size: 14px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 40px;
}

.footer a {
  color: #A1A1AA;
}

.footer a:hover {
  color: var(--accent);
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 50px auto 0;
  padding-top: 30px;
  border-top: 1px solid #2A2A2F;
  font-size: 13px;
  color: #52525B;
}

/* Responsive */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .header-inner {
    padding: 18px 24px;
  }
  
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface);
    flex-direction: column;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
  }
  
  .nav.active {
    display: flex;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .hero h1 {
    font-size: 38px;
  }
}