/* ============================================
   OptiAI — Section-spezifische Styles
   ============================================ */

/* ---- HEADER ---- */
#header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: var(--color-dark);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: backdrop-filter var(--transition), background-color var(--transition);
}

#header.scrolled {
  backdrop-filter: blur(12px);
  background-color: rgba(13, 27, 42, 0.92);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: var(--space-4);
}

.nav-logo img { height: 44px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.nav-links a {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-gray);
  letter-spacing: 0.01em;
  transition: color var(--transition);
}

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

/* DSGVO Trust Badge */
.nav-trust-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 100px;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.25);
  color: var(--color-cyan);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.nav-trust-badge svg { width: 14px; height: 14px; flex-shrink: 0; }

.nav-cta { padding: 10px 20px; font-size: 13px; }

.hamburger {
  display: none;
  color: var(--color-white);
  padding: var(--space-1);
}

.nav-mobile {
  display: none;
  background-color: var(--color-dark);
  padding: var(--space-4) var(--container-pad);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.nav-mobile.is-open { display: block; }

.nav-mobile-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.nav-mobile-links a {
  color: var(--color-gray);
  font-weight: 500;
  font-size: 18px;
  transition: color var(--transition);
}

.nav-mobile-links a:hover { color: var(--color-white); }


/* ---- HERO ---- */
.hero-section {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  padding-bottom: var(--space-4);
  overflow: hidden;
}

/* Canvas Partikel-Netzwerk */
.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(29,78,216,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29,78,216,0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-bg-glow {
  position: absolute;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(29,78,216,0.18) 0%, transparent 70%);
  pointer-events: none;
}

.hero-centered {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  text-align: center;
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero-content {
  max-width: 760px;
}

.hero-content h1 {
  color: var(--color-white);
  margin-bottom: var(--space-2);
}

.hero-subtext {
  font-size: 17px;
  color: var(--color-gray);
  margin-bottom: 0;
  max-width: 580px;
  margin-inline: auto;
}

.hero-process {
  width: 100%;
  display: flex;
  justify-content: center;
}

.hero-cta {
  display: flex;
  justify-content: center;
}

.btn--lg {
  padding: 16px 32px;
  font-size: 15px;
}

/* Prozess-Flow Grafik */
.process-flow {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-5);
  max-width: 580px;
}

.process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  text-align: center;
  min-width: 120px;
  position: relative;
  cursor: default;
  transition: transform 0.25s ease;
}

/* Tooltip via data-tooltip Attribut */
.process-step[data-tooltip]::before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  background: #162035;
  color: var(--color-gray);
  font-size: 13px;
  font-family: var(--font-body);
  line-height: 1.5;
  padding: 10px 14px;
  border-radius: 8px;
  width: 210px;
  text-align: center;
  border: 1px solid rgba(29, 78, 216, 0.25);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 20;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

.process-step[data-tooltip]:hover::before {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.process-step:hover {
  transform: scale(1.08);
}

/* Geschwister dimmen beim Hover eines Schritts */
.process-flow:hover .process-step:not(:hover) {
  opacity: 0.65;
}

.process-step span {
  font-size: var(--text-caption);
  color: var(--color-gray);
  line-height: 1.4;
}

.process-step strong {
  color: var(--color-blue);
  font-family: var(--font-heading);
  font-size: 16px;
}

.process-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(29,78,216,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-blue);
}

.process-step--highlight .process-icon {
  background: var(--color-blue);
  color: var(--color-white);
  box-shadow: 0 0 24px rgba(29,78,216,0.4);
}

.process-arrow {
  color: var(--color-blue);
  opacity: 0.6;
  flex-shrink: 0;
}


/* ---- KPI-BAND ---- */
.kpi-band {
  padding-block: var(--space-6);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.kpi-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.kpi-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 4px;
}

.kpi-number {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 32px;
  color: var(--color-blue);
  line-height: 1;
}

.kpi-label {
  font-size: var(--text-caption);
  color: var(--color-gray);
}

.kpi-divider {
  width: 1px;
  height: 40px;
  background-color: rgba(0,0,0,0.12);
}


/* ---- CARDS GRID ---- */
.cards-grid {
  display: grid;
  gap: var(--space-3);
}

.cards-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}


/* ---- PROZESS-ANIMATION (SVG) ---- */
.process-animation {
  margin-bottom: var(--space-4);
  overflow: visible;
}

.process-svg {
  overflow: visible;
  display: block;
}

/* Gestrichelter Pfad: Fade-in beim Einscroll */
.process-dashed-path {
  opacity: 0;
  transition: opacity 0.9s ease 0.2s;
}

.process-animation.is-visible .process-dashed-path {
  opacity: 0.6;
}

/* Wandernder Punkt: erscheint leicht verzögert */
.process-dot {
  opacity: 0;
  transition: opacity 0.5s ease 0.8s;
}

.process-animation.is-visible .process-dot {
  opacity: 1;
}

/* Beschreibungstexte unter der SVG */
.process-steps-text {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.process-step-text {
  text-align: center;
  padding: var(--space-2) var(--space-3);
  border-top: 1px solid rgba(29,78,216,0.2);
}

.process-step-text h3 {
  color: var(--color-white);
  font-size: 16px;
  margin-bottom: var(--space-1);
}

.process-step-text p {
  color: var(--color-gray);
  font-size: var(--text-small);
  line-height: 1.6;
}

.process-step-text--highlight h3 {
  color: var(--color-cyan);
}

.process-step-text--highlight {
  border-top-color: rgba(6,182,212,0.35);
}

/* Video Platzhalter */
.video-placeholder {
  border: 2px dashed rgba(29,78,216,0.3);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-align: center;
  margin-bottom: var(--space-8);
}

.video-placeholder__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-gray);
}

.video-play-icon {
  color: var(--color-blue);
  opacity: 0.5;
}

.video-play-icon svg { width: 56px; height: 56px; }

.video-placeholder p  { color: var(--color-gray); }
.video-placeholder span { font-size: var(--text-caption); opacity: 0.6; }

/* Section CTA */
.section-cta {
  margin-top: var(--space-8);
  text-align: center;
}


/* ---- TRUST ---- */
.trust-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.trust-stat {
  text-align: center;
  padding: var(--space-4);
  border-radius: var(--radius-card);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.trust-number {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 40px;
  color: var(--color-blue);
  line-height: 1;
  margin-bottom: var(--space-1);
}

.trust-label {
  font-size: var(--text-small);
  color: var(--color-gray);
}

.founder-quote {
  max-width: 760px;
  margin-inline: auto;
  text-align: center;
  padding: var(--space-6);
  border-left: 3px solid var(--color-blue);
  background: var(--color-white);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  box-shadow: var(--shadow-sm);
}

.founder-quote p {
  font-size: 18px;
  color: var(--color-slate);
  font-style: italic;
  line-height: 1.7;
  margin-bottom: var(--space-2);
}

.founder-quote cite {
  font-size: var(--text-small);
  color: var(--color-gray);
  font-style: normal;
  font-weight: 500;
}


/* ---- TIMELINE / ONBOARDING ---- */
.timeline {
  max-width: 720px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.timeline-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: var(--space-3);
  padding-bottom: var(--space-4);
  position: relative;
}

.timeline-item:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 23px;
  top: 48px;
  bottom: 0;
  width: 2px;
  background: rgba(29,78,216,0.2);
}

.timeline-marker {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(29,78,216,0.15);
  border: 2px solid var(--color-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14px;
  color: var(--color-blue);
  flex-shrink: 0;
  z-index: 1;
}

.timeline-content {
  padding-top: var(--space-1);
}

.timeline-content h3 {
  color: var(--color-white);
  font-size: 18px;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.timeline-content p {
  color: var(--color-gray);
  font-size: var(--text-small);
}

.timeline-tag {
  font-family: var(--font-body);
  font-size: var(--text-caption);
  font-weight: 500;
  color: var(--color-blue);
  background: rgba(29,78,216,0.15);
  padding: 2px 10px;
  border-radius: 100px;
}


/* ---- ONBOARDING SVG-ANIMATION ---- */
.onboarding-svg-wrap {
  position: relative;
  max-width: 980px;
  margin-inline: auto;
  padding-left: 0;
  display: none;
}
@media (min-width: 650px) {
  .onboarding-svg-wrap { display: block; }
}

/* Versteckte Pfade für JS-Dot-Animation */
.js-path   { fill: none; stroke: none; pointer-events: none; }
.split-path { fill: none; stroke: none; pointer-events: none; }

.timeline--mobile-only { display: flex; }
@media (min-width: 650px) {
  .timeline--mobile-only { display: none; }
}

.onboarding-path {
  fill: none;
  stroke: #1D4ED8;
  stroke-width: 1.5;
  stroke-dasharray: 10 7;
  opacity: 0;
  transition: opacity 1s ease 0.4s;
}
.onboarding-svg-wrap.is-visible .onboarding-path {
  opacity: 0.5;
}

.onboarding-retainer-arc {
  fill: none;
  stroke: #06B6D4;
  stroke-width: 1.5;
  stroke-dasharray: 6 5;
  opacity: 0;
  transition: opacity 0.6s ease 2s;
}
.onboarding-svg-wrap.is-visible .onboarding-retainer-arc {
  opacity: 0.45;
}

.onboarding-retainer-label {
  opacity: 0;
  transition: opacity 0.6s ease 2.3s;
}
.onboarding-svg-wrap.is-visible .onboarding-retainer-label {
  opacity: 1;
}

/* ---- FAQ / ACCORDION ---- */
.accordion {
  max-width: 760px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

.accordion-item {
  border-bottom: 1px solid rgba(0,0,0,0.08);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4) 0;
  text-align: left;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 18px;
  color: var(--color-dark);
  transition: color var(--transition);
}

.accordion-trigger:hover { color: var(--color-blue); }

.accordion-trigger svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-blue);
  transition: transform 0.3s ease;
}

.accordion-trigger[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.accordion-item {
  border-bottom: 1px solid rgba(0,0,0,0.08);
  transition: background-color 0.2s ease;
}

.accordion-trigger[aria-expanded="true"] {
  color: var(--color-blue);
}

.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.accordion-panel p {
  padding-bottom: var(--space-3);
  color: var(--color-slate);
  line-height: 1.7;
}


/* ---- DEMO / KALENDER ---- */
.demo-section {
  position: relative;
  overflow: hidden;
}

.demo-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-dark) 0%, #1a2f6e 100%);
  pointer-events: none;
}

.demo-section .container { position: relative; z-index: 1; }

.calendar-placeholder {
  max-width: 600px;
  margin-inline: auto;
  border: 2px dashed rgba(255,255,255,0.15);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-align: center;
}

.calendar-placeholder__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.calendar-placeholder__inner svg {
  width: 56px;
  height: 56px;
  color: var(--color-blue);
  opacity: 0.7;
}

.calendar-placeholder__inner h3 { color: var(--color-white); }

.calendar-placeholder__inner p {
  color: var(--color-gray);
  font-size: var(--text-small);
  line-height: 1.6;
}

.calendar-placeholder__inner em {
  color: rgba(148,163,184,0.6);
  font-size: var(--text-caption);
}


/* ---- ROI PLATZHALTER ---- */
.roi-placeholder {
  max-width: 600px;
  margin-inline: auto;
  border: 2px dashed rgba(29,78,216,0.25);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}

.roi-placeholder__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
}

.roi-placeholder__inner svg {
  width: 48px;
  height: 48px;
  color: var(--color-blue);
  opacity: 0.6;
}

.roi-placeholder__inner h3 { color: var(--color-white); }
.roi-placeholder__inner p  { color: var(--color-gray); font-size: var(--text-small); }


/* ---- FOOTER ---- */
#footer {
  background-color: var(--color-dark);
}

.footer-top {
  padding-block: var(--space-8);
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.footer-top-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-6);
  align-items: start;
}

.footer-brand img { margin-bottom: var(--space-2); display: block; }

.footer-brand p {
  font-size: var(--text-small);
  color: var(--color-gray);
  margin-bottom: 4px;
}

.footer-brand span {
  font-size: var(--text-caption);
  color: rgba(148,163,184,0.45);
}

.footer-nav-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(148,163,184,0.5);
  margin-bottom: var(--space-3);
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-nav a {
  font-size: var(--text-small);
  color: var(--color-gray);
  transition: color var(--transition);
}

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

.footer-contact-col { display: flex; flex-direction: column; }

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-contact-link {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--text-small);
  color: var(--color-gray);
  transition: color var(--transition);
}

.footer-contact-link svg { width: 16px; height: 16px; flex-shrink: 0; }

.footer-contact-link:hover { color: var(--color-white); }

.footer-bottom {
  padding-block: var(--space-3);
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-bottom-inner > span {
  font-size: var(--text-caption);
  color: rgba(148,163,184,0.45);
}

.footer-legal {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-legal a {
  font-size: var(--text-caption);
  color: rgba(148,163,184,0.5);
  transition: color var(--transition);
}

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

.footer-sep {
  color: rgba(148,163,184,0.3);
  font-size: var(--text-caption);
}


/* ---- FOUNDER ---- */
#founder {
  border-top: 1px solid rgba(51,65,85,0.12);
}

.founder-inner {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: var(--space-8);
  align-items: center;
}

.founder-image {
  display: flex;
  justify-content: center;
}

.founder-photo {
  width: 360px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.founder-photo:hover {
  transform: scale(1.04) translateY(-6px);
  box-shadow: 0 24px 56px rgba(0,0,0,0.18);
}

.founder-content .eyebrow { margin-bottom: var(--space-1); }

.founder-content h2 {
  margin-bottom: var(--space-4);
}

.founder-content p {
  color: var(--color-slate);
  margin-bottom: var(--space-3);
  max-width: 580px;
}


/* ---- COOKIE BANNER ---- */
.cookie-banner {
  position: fixed;
  bottom: var(--space-3);
  left: var(--space-3);
  right: var(--space-3);
  max-width: 600px;
  margin-inline: auto;
  background-color: #1a2a3a;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-card);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  z-index: 200;
  box-shadow: var(--shadow-lg);
  transform: translateY(0);
  transition: transform var(--transition-slow), opacity var(--transition-slow);
}

.cookie-banner.hidden {
  transform: translateY(120%);
  opacity: 0;
  pointer-events: none;
}

.cookie-banner p {
  font-size: var(--text-caption);
  color: var(--color-gray);
  line-height: 1.5;
}

.cookie-banner a {
  color: var(--color-blue);
  text-decoration: underline;
}

.cookie-accept { padding: 8px 16px; font-size: 13px; flex-shrink: 0; }