/* KX-SECTION rechner-ibkr START */
/* ===========================================
   IBKR STEUERRECHNER PAGE
   =========================================== */

/* ── Shared ──────────────────────────────── */
#ist-hero,
#ist-process,
#ist-features,
#ist-privacy,
#ist-cta {
  box-sizing: border-box;
  font-family: var(--konvex-font);
  margin: 0;
}
#ist-hero *,
#ist-process *,
#ist-features *,
#ist-privacy *,
#ist-cta * {
  box-sizing: border-box;
}
.ist-inner {
  max-width: 1000px;
  margin: 0 auto;
  width: 100%;
}

/* ── Section 1: Hero (Dark) ──────────────── */
#ist-hero {
  position: relative;
  background: #0a0a0a;
  color: var(--gray-100);
  padding: clamp(80px, 12vw, 160px) 24px clamp(60px, 8vw, 100px);
  overflow: hidden;
}
.ist-hero-glow {
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(56, 182, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}
#ist-hero .ist-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(40px, 5vw, 80px);
  align-items: center;
}
.ist-hero-content {
  position: relative;
  z-index: 1;
}
.ist-badge {
  display: inline-block;
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 24px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  border: 1px solid rgba(16, 185, 129, 0.2);
}
#ist-hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: var(--gray-100);
  margin: 0 0 1rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.ist-text-accent {
  background: linear-gradient(135deg, var(--konvex-accent), #34d399);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.ist-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: var(--gray-500);
  line-height: 1.7;
  margin: 0 0 32px;
  max-width: 520px;
}
.ist-hero-hint {
  font-size: 0.82rem;
  color: var(--gray-600);
  margin: 0 0 32px;
  font-style: italic;
}
.ist-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: var(--btn-gradient);
  color: #fff !important;
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--btn-radius);
  text-decoration: none;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: var(--btn-shadow);
}
.ist-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--btn-shadow-hover);
  color: #fff !important;
}
.ist-github-icon {
  width: 18px;
  height: 18px;
}
.ist-arrow-icon {
  width: 14px;
  height: 14px;
}
.ist-hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.ist-hero-visual svg {
  width: 100%;
  max-width: 320px;
  height: auto;
}

/* ── Section 2: Process (Light) ──────────── */
#ist-process {
  background: var(--gray-100);
  color: var(--gray-800);
  padding: clamp(60px, 8vw, 100px) 24px;
}
.ist-section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 800;
  color: var(--konvex-dark);
  text-align: center;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}
.ist-section-sub {
  text-align: center;
  color: var(--konvex-gray);
  font-size: 1.05rem;
  margin: 0 0 48px;
  line-height: 1.6;
}
.ist-steps-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.ist-step-card {
  background: #fff;
  border: 1px solid var(--konvex-border);
  border-radius: var(--konvex-radius);
  padding: 32px 24px 28px;
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  position: relative;
}
.ist-step-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}
.ist-step-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 16px;
}
.ist-step-icon svg {
  width: 36px;
  height: 36px;
  color: var(--konvex-accent);
}
.ist-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--konvex-accent);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.ist-step-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--konvex-dark);
  margin: 0 0 8px;
}
.ist-step-card p {
  font-size: 0.92rem;
  color: var(--konvex-gray);
  line-height: 1.6;
  margin: 0;
}

/* ── Video Embed (2-Click DSGVO) ──────────── */
.ist-video-wrapper {
  max-width: 720px;
  margin: 48px auto 0;
}
.ist-video-frame {
  border-radius: var(--konvex-radius);
  overflow: hidden;
  border: 1px solid var(--konvex-border);
  background: #000;
}
.ist-video-aspect {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
}
.ist-video-consent {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-950);
  cursor: default;
}
.ist-consent-content {
  text-align: center;
  padding: 24px;
  max-width: 380px;
}
.ist-consent-icon {
  width: 48px;
  height: 48px;
  color: rgba(255, 255, 255, 0.3);
  margin-bottom: 16px;
}
.ist-consent-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray-100);
  margin: 0 0 8px;
}
.ist-consent-text {
  font-size: 0.82rem;
  color: var(--gray-500);
  line-height: 1.6;
  margin: 0 0 20px;
}
.ist-consent-text a {
  color: var(--konvex-accent);
  text-decoration: none;
}
.ist-consent-text a:hover {
  text-decoration: underline;
}
.ist-consent-btn {
  display: inline-flex;
  align-items: center;
  padding: 10px 24px;
  background: var(--konvex-accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}
.ist-consent-btn:hover {
  background: var(--konvex-accent-hover);
  transform: translateY(-1px);
}

/* ── Section 3: Features (Dark) ──────────── */
#ist-features {
  background: #0a0a0a;
  color: var(--gray-100);
  padding: clamp(60px, 8vw, 100px) 24px;
}
.ist-section-title-dark {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 800;
  color: var(--gray-100);
  text-align: center;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}
.ist-section-sub-dark {
  text-align: center;
  color: var(--gray-500);
  font-size: 1.05rem;
  margin: 0 0 48px;
  line-height: 1.6;
}
.ist-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.ist-feature-card {
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--konvex-radius);
  padding: 28px 24px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.ist-feature-card:hover {
  transform: translateY(-3px);
  border-color: rgba(56, 182, 255, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}
.ist-feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(56, 182, 255, 0.1);
  margin-bottom: 16px;
}
.ist-feature-icon svg {
  width: 22px;
  height: 22px;
  color: var(--konvex-accent);
}
.ist-feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gray-100);
  margin: 0 0 8px;
}
.ist-feature-card p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.6;
  margin: 0;
}

/* ── Section 4: Privacy (Light) ──────────── */
#ist-privacy {
  background: var(--gray-100);
  color: var(--gray-800);
  padding: clamp(60px, 8vw, 100px) 24px;
}
.ist-privacy-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 5vw, 80px);
  align-items: center;
}
.ist-privacy-card-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}
.ist-shield-wrap {
  display: flex;
  justify-content: center;
}
.ist-shield-wrap svg {
  width: 100px;
  height: auto;
  filter: drop-shadow(0 4px 24px rgba(56, 182, 255, 0.12));
}
.ist-privacy-badges {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.ist-privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--konvex-border);
  border-radius: 100px;
  padding: 8px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--konvex-dark);
  white-space: nowrap;
}
.ist-privacy-badge svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}
.ist-privacy-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--konvex-accent);
  margin-bottom: 12px;
}
.ist-section-title-left {
  text-align: left;
}
.ist-text-dark-accent {
  color: var(--konvex-accent);
}
.ist-privacy-intro {
  font-size: 1rem;
  color: var(--konvex-gray);
  line-height: 1.7;
  margin: 0 0 28px;
}
.ist-privacy-points {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.ist-privacy-point {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.ist-check-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.12);
  margin-top: 2px;
}
.ist-check-icon svg {
  width: 12px;
  height: 12px;
  color: #10b981;
}
.ist-privacy-point span:last-child {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--gray-800);
}
.ist-privacy-point strong {
  color: var(--konvex-dark);
}

/* ── Section 5: Disclaimer & CTA (Dark) ──── */
#ist-cta {
  background: #0a0a0a;
  color: var(--gray-100);
  padding: clamp(60px, 8vw, 100px) 24px;
}

/* Disclaimer box */
.ist-disclaimer {
  background: rgba(245, 158, 11, 0.06);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: var(--konvex-radius);
  padding: 28px 32px;
  margin-bottom: 48px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}
.ist-disclaimer-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 12px;
}
.ist-disclaimer-icon svg {
  width: 28px;
  height: 28px;
  color: #f59e0b;
}
.ist-disclaimer h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray-100);
  text-align: center;
  margin: 0 0 16px;
}
.ist-disclaimer ul {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
}
.ist-disclaimer li {
  font-size: 0.9rem;
  color: var(--gray-400);
  line-height: 1.6;
  padding: 6px 0 6px 20px;
  position: relative;
}
.ist-disclaimer li::before {
  content: '•';
  position: absolute;
  left: 4px;
  color: #f59e0b;
  font-weight: 700;
}
.ist-disclaimer strong {
  color: var(--gray-100);
}
.ist-disclaimer-link {
  font-size: 0.85rem;
  color: var(--gray-500);
  text-align: center;
  margin: 0;
}
.ist-disclaimer-link a {
  color: var(--konvex-accent);
  text-decoration: none;
}
.ist-disclaimer-link a:hover {
  text-decoration: underline;
}

/* CTA card */
.ist-cta-card {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
  padding: 48px 32px;
  background: rgba(56, 182, 255, 0.04);
  border: 1px solid rgba(56, 182, 255, 0.1);
  border-radius: 16px;
}
.ist-cta-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}
.ist-cta-icon svg {
  width: 48px;
  height: 48px;
  color: var(--gray-100);
}
.ist-cta-card h2 {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 800;
  color: var(--gray-100);
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}
.ist-cta-card p {
  color: var(--gray-500);
  font-size: 1rem;
  line-height: 1.6;
  margin: 0 0 28px;
}
.ist-cta-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 40px;
  background: var(--btn-gradient);
  color: #fff !important;
  font-weight: 700;
  font-size: 1.05rem;
  border-radius: var(--btn-radius);
  text-decoration: none;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: var(--btn-shadow);
}
.ist-cta-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--btn-shadow-hover);
  color: #fff !important;
}
.ist-cta-github-link {
  margin: 16px 0 0 !important;
}
.ist-cta-github-link a {
  color: var(--gray-500);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 0.2s;
}
.ist-cta-github-link a:hover {
  color: var(--konvex-accent);
}

/* ── Animations ──────────────────────────── */
#ist-hero .anim-item,
#ist-process .ist-step-card,
#ist-features .ist-feature-card,
#ist-privacy .anim-item,
#ist-cta .anim-item {
  opacity: 1;
  transform: none;
}
#ist-hero .anim-item.anim-ready,
#ist-process .ist-step-card.anim-ready,
#ist-features .ist-feature-card.anim-ready,
#ist-privacy .anim-item.anim-ready,
#ist-cta .anim-item.anim-ready {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
#ist-hero .anim-item.is-visible,
#ist-process .ist-step-card.is-visible,
#ist-features .ist-feature-card.is-visible,
#ist-privacy .anim-item.is-visible,
#ist-cta .anim-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ──────────────────────────── */
@media (max-width: 900px) {
  #ist-hero .ist-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .ist-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  .ist-hero-visual {
    order: -1;
  }
  .ist-hero-visual svg {
    max-width: 240px;
  }
  .ist-steps-row {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }
  .ist-feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .ist-privacy-split {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .ist-privacy-card-visual {
    align-items: center;
  }
  .ist-privacy-badges {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }
  .ist-section-title-left {
    text-align: center;
  }
  .ist-privacy-label {
    text-align: center;
    display: block;
  }
  .ist-privacy-points {
    align-items: flex-start;
    text-align: left;
  }
  .ist-section-title {
    text-align: center;
  }
}

@media (max-width: 600px) {
  #ist-hero,
  #ist-process,
  #ist-features,
  #ist-privacy,
  #ist-cta {
    padding-left: 20px;
    padding-right: 20px;
  }
  .ist-feature-grid {
    grid-template-columns: 1fr;
  }
  .ist-cta-card {
    padding: 36px 20px;
  }
  .ist-disclaimer {
    padding: 24px 20px;
  }
}

/* KX-SECTION rechner-ibkr END */