/* ==========================================================================
   DokuSort Corporate Design Tokens (PaperPeace / Tahoe Style)
   Developer: Richard Sonderegger
   ========================================================================== */

:root {
  --color-accent: #8A9A86;        /* Sage Markenakzent */
  --color-accent-muted: rgba(138, 154, 134, 0.2);
  --color-on-accent: #1C201D;
  --color-bg: #1C201D;           /* Oliv-Anthrazit dunkel */
  --color-surface: #262B27;      /* Karten / Elevated Surface */
  --color-surface-hover: #303731;
  --color-text-primary: #F0F2EF;  /* Papier Hell */
  --color-text-secondary: #A2A9A1;
  --color-hairline: rgba(255, 255, 255, 0.1);
  --color-attention: #D96B43;    /* Rostorange Kontrast */

  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-serif: "New York", Georgia, Cambria, "Times New Roman", Times, serif;

  --radius-card: 16px;
  --radius-button: 10px;
  --radius-capsule: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4 {
  color: var(--color-text-primary);
  font-weight: 600;
  line-height: 1.2;
}

.editorial-text {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--color-accent);
}

.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.text-center {
  text-align: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius-button);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
}

.btn-icon {
  width: 20px;
  height: 20px;
  margin-right: 8px;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-on-accent);
}

.btn-primary:hover {
  background-color: #9AB096;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(138, 154, 134, 0.3);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  border: 1px solid var(--color-hairline);
}

.btn-secondary:hover {
  background-color: var(--color-surface-hover);
  transform: translateY(-2px);
}

.btn-large {
  padding: 16px 32px;
  font-size: 1.05rem;
  border-radius: 12px;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(28, 32, 29, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-hairline);
  transition: all var(--transition-fast);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-text-primary);
  font-weight: 700;
  font-size: 1.2rem;
}

.brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--color-accent-muted);
  color: var(--color-accent);
  border-radius: 8px;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-text-primary);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 6px;
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: all var(--transition-fast);
}

/* Hero Section */
.hero {
  padding: 160px 0 100px;
  text-align: center;
  background: radial-gradient(circle at 50% 20%, rgba(138, 154, 134, 0.15), transparent 60%);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-capsule);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  max-width: 680px;
  margin: 0 auto 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 48px;
}

.hero-platforms {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.platform-tags {
  display: flex;
  gap: 8px;
}

.platform-tag {
  background-color: var(--color-surface);
  padding: 4px 12px;
  border-radius: var(--radius-capsule);
  border: 1px solid var(--color-hairline);
  color: var(--color-text-primary);
}

/* Privacy & Storage Section */
.privacy-section {
  padding: 60px 0;
}

.privacy-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-card);
  padding: 48px;
  display: flex;
  gap: 36px;
  align-items: flex-start;
}

.privacy-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  background-color: var(--color-accent-muted);
  color: var(--color-accent);
  border-radius: 20px;
  flex-shrink: 0;
}

.privacy-content h2 {
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.privacy-content p {
  color: var(--color-text-secondary);
  margin-bottom: 20px;
  font-size: 1.05rem;
}

.privacy-checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: var(--color-text-primary);
}

/* Features Grid */
.features-section {
  padding: 100px 0;
}

.section-header {
  margin-bottom: 60px;
}

.section-title {
  font-size: 2.4rem;
  margin-bottom: 12px;
}

.section-subtitle {
  color: var(--color-text-secondary);
  font-size: 1.1rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-card);
  padding: 32px;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

/* Showcase Section */
.showcase-section {
  padding: 80px 0;
  background-color: #171A18;
}

.showcase-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
}

.showcase-tab {
  padding: 10px 24px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  color: var(--color-text-secondary);
  border-radius: var(--radius-capsule);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.showcase-tab.active, .showcase-tab:hover {
  background-color: var(--color-accent);
  color: var(--color-on-accent);
  border-color: var(--color-accent);
}

.showcase-content {
  display: none;
  animation: fadeIn var(--transition-smooth);
}

.showcase-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.mockup-window {
  background-color: var(--color-surface);
  border-radius: 12px;
  border: 1px solid var(--color-hairline);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
  max-width: 900px;
  margin: 0 auto;
}

.mockup-bar {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background-color: #1E221F;
  border-bottom: 1px solid var(--color-hairline);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-right: 8px;
}

.dot-red { background-color: #FF5F56; }
.dot-yellow { background-color: #FFBD2E; }
.dot-green { background-color: #27C93F; }

.mockup-title {
  margin-left: auto;
  margin-right: auto;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

.mockup-body {
  padding: 20px;
  display: flex;
  justify-content: center;
}

.app-screenshot {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  transition: opacity 0.15s ease-in-out;
}

.mockup-caption {
  text-align: center;
  margin-top: 16px;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

/* macOS Galerie Buttons */
.mac-gallery-controls {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.mac-thumb-btn {
  padding: 8px 16px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  color: var(--color-text-secondary);
  border-radius: var(--radius-capsule);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mac-thumb-btn:hover {
  background-color: var(--color-surface-hover);
  color: var(--color-text-primary);
  border-color: var(--color-accent);
}

.mac-thumb-btn.active {
  background-color: var(--color-accent-muted);
  color: var(--color-accent);
  border-color: var(--color-accent);
  font-weight: 600;
}

/* ==========================================================================
   iPhone Showcase - Quad-Mockup Layout (4 Screens Nebeneinander)
   ========================================================================== */

.iphone-quad-container {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 18px;
  max-width: 1060px;
  margin: 20px auto 0;
  padding: 10px 0;
}

.iphone-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1 1 200px;
  max-width: 230px;
  transition: transform var(--transition-fast);
}

.iphone-card:hover {
  transform: translateY(-6px);
}

/* Das iPhone Gehäuse */
.iphone-mockup {
  position: relative;
  width: 100%;
  aspect-ratio: 9 / 19.5;
  background-color: #0A0C0A;
  border-radius: 36px;
  box-shadow: 
    0 15px 35px -8px rgba(0, 0, 0, 0.7),
    0 0 0 7px #2A2F2B, 
    0 0 0 8px var(--color-hairline);
  overflow: hidden;
  box-sizing: border-box;
}

/* Dynamic Island / Notch */
.iphone-notch {
  position: absolute;
  top: 7px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 16px;
  background-color: #000000;
  border-radius: 20px;
  z-index: 10;
  box-shadow: 0 0 2px rgba(255, 255, 255, 0.1);
}

/* Screen Inset */
.iphone-screen {
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 28px;
  background-color: #000;
}

.iphone-screenshot {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

/* Beschreibung unter dem Gerät */
.iphone-card-info {
  text-align: center;
  margin-top: 16px;
  padding: 12px 14px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-radius: 12px;
  width: 100%;
}

.iphone-card-info h4 {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 4px;
}

.iphone-card-info p {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  line-height: 1.35;
}

/* Tech Specs */
.techspecs-section {
  padding: 80px 0;
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.spec-box {
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-radius: 12px;
  padding: 24px;
}

.spec-label {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.spec-value {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-accent);
}

/* About Section */
.about-section {
  padding: 80px 0;
}

.about-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-card);
  padding: 48px;
  max-width: 860px;
  margin: 0 auto;
}

.about-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
}

.developer-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-on-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.4rem;
}

.developer-role {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.about-body p {
  font-size: 1.1rem;
  color: var(--color-text-primary);
  line-height: 1.7;
}

/* CTA Section */
.cta-section {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--color-bg) 0%, #151816 100%);
}

.cta-title {
  font-size: 2.6rem;
  margin-bottom: 16px;
}

.cta-subtitle {
  color: var(--color-text-secondary);
  font-size: 1.2rem;
  margin-bottom: 40px;
}

.cta-box {
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-card);
  padding: 40px;
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.price-title {
  display: block;
  font-size: 1.2rem;
  font-weight: 700;
}

.price-desc {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

/* Footer */
.footer {
  padding: 60px 0 40px;
  border-top: 1px solid var(--color-hairline);
  background-color: #141715;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 40px;
}

.footer-text {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin: 12px 0;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  opacity: 0.7;
}

.footer-col h4 {
  font-size: 0.9rem;
  margin-bottom: 16px;
  color: var(--color-text-primary);
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color var(--transition-fast);
}

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

/* Responsive Styles */
@media (max-width: 900px) {
  .iphone-quad-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    justify-items: center;
    gap: 24px;
    max-width: 500px;
  }

  .iphone-card {
    max-width: 220px;
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .nav-links.active {
    display: flex;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--color-hairline);
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .privacy-card {
    flex-direction: column;
    padding: 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .iphone-quad-container {
    grid-template-columns: 1fr;
  }

  .iphone-card {
    max-width: 240px;
  }
}