/* =========================================================
   Dopamind Product Website – style.css
   ========================================================= */

/* ---------- CSS Custom Properties (Design Tokens) -------- */
:root {
  /* Colours – Dark Mode (default) */
  --surface:        #1A1A2E;
  --surface-2:      #16213E;
  --card-bg:        rgba(22, 33, 62, 0.75);
  --card-border:    rgba(108, 99, 255, 0.18);
  --accent:         #6C63FF;
  --accent-soft:    #8B83FF;
  --accent-glow:    #A29BFE;
  --success:        #00C9A7;
  --success-soft:   #00E4BF;
  --warn:           #FFB84C;
  --danger:         #FF6B6B;
  --text-primary:   #F0EFF9;
  --text-secondary: #9CA3AF;
  --muted:          #6B7280;
  --code-bg:        #0D0D1A;
  --nav-bg:         rgba(26, 26, 46, 0.85);
  --scrollbar-thumb:#6C63FF;
  --scrollbar-track:#1A1A2E;

  --radius:    1rem;
  --radius-sm: 0.5rem;
  --shadow:    0 4px 32px rgba(108, 99, 255, 0.10);
  --shadow-lg: 0 8px 48px rgba(108, 99, 255, 0.18);

  --transition: 0.25s ease;
}

[data-theme="light"] {
  --surface:        #FAFAF9;
  --surface-2:      #F3F2F0;
  --card-bg:        rgba(255, 255, 255, 0.80);
  --card-border:    rgba(108, 99, 255, 0.15);
  --text-primary:   #1A1A2E;
  --text-secondary: #4B5563;
  --muted:          #9CA3AF;
  --code-bg:        #1A1A2E;
  --nav-bg:         rgba(250, 250, 249, 0.88);
  --scrollbar-thumb:#6C63FF;
  --scrollbar-track:#F3F2F0;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background-color: var(--surface);
  color: var(--text-primary);
  line-height: 1.7;
  transition: background-color var(--transition), color var(--transition);
  overflow-x: hidden;
}

/* ---------- Scrollbar ------------------------------------- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 3px; }

/* ---------- Typography ------------------------------------ */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
}

h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 1rem; }
h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); margin: 1.5rem 0 0.5rem; }
h4 { font-size: 1rem; margin: 1rem 0 0.25rem; }

p { color: var(--text-secondary); margin-bottom: 0.75rem; }

a { color: var(--accent-soft); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-glow); }

ul, ol { padding-left: 1.5rem; color: var(--text-secondary); }
li { margin-bottom: 0.35rem; }

strong { color: var(--text-primary); font-weight: 600; }

blockquote {
  border-left: 3px solid var(--accent);
  padding: 0.75rem 1.25rem;
  background: rgba(108, 99, 255, 0.08);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1rem 0;
  color: var(--text-secondary);
}

blockquote p { margin: 0; }

/* ---------- Glass Card ------------------------------------ */
.glass-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
  padding: 2rem;
  transition: box-shadow var(--transition), transform var(--transition);
}

.glass-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* ---------- Gradient Text --------------------------------- */
.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, #9B59B6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Navigation ------------------------------------ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--card-border);
  padding: 0 1.5rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  transition: background var(--transition);
}

.nav-logo {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  flex-shrink: 0;
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-links a {
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover {
  color: var(--text-primary);
  background: rgba(108, 99, 255, 0.12);
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid var(--card-border);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1rem;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.btn-icon:hover {
  background: rgba(108, 99, 255, 0.12);
  color: var(--text-primary);
  border-color: var(--accent);
}

.btn-lang {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid var(--card-border);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: inherit;
  letter-spacing: 0.04em;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.btn-lang:hover,
.btn-lang.active {
  background: rgba(108, 99, 255, 0.15);
  color: var(--accent-soft);
  border-color: var(--accent);
}

/* Hamburger for mobile */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ---------- Buttons --------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  white-space: nowrap;
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(108, 99, 255, 0.35);
}

.btn-primary:hover {
  background: var(--accent-soft);
  box-shadow: 0 6px 24px rgba(108, 99, 255, 0.45);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--card-border);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent-soft);
  background: rgba(108, 99, 255, 0.08);
}

/* ---------- Sections ------------------------------------- */
.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 5rem 1.5rem;
}

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

/* ---------- Hero ------------------------------------------ */
#hero {
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 5rem 1.5rem;
  position: relative;
  overflow: hidden;
}

/* Gradient overlay (stays always; intensified when bg image is active) */
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(108, 99, 255, 0.18) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 80% 80%, rgba(0, 201, 167, 0.08) 0%, transparent 60%);
  pointer-events: none;
  z-index: 1;
  transition: background var(--transition);
}

/* Stronger dim overlay when bg image is present */
#hero.hero-has-bg::before {
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(108, 99, 255, 0.22) 0%, transparent 70%),
    radial-gradient(ellipse 60% 60% at 80% 80%, rgba(0, 201, 167, 0.10) 0%, transparent 60%),
    linear-gradient(to bottom, rgba(var(--surface-rgb, 26 26 46), 0.38) 0%, rgba(var(--surface-rgb, 26 26 46), 0.55) 100%);
}

[data-theme="light"] #hero.hero-has-bg::before {
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(108, 99, 255, 0.18) 0%, transparent 70%),
    linear-gradient(to bottom, rgba(250 250 249 / 0.32) 0%, rgba(250 250 249 / 0.50) 100%);
}

/* Background image layer */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  /* Edge vignette: fade all 4 sides */
  -webkit-mask-image:
    linear-gradient(to right,  transparent 0%, black 12%, black 88%, transparent 100%),
    linear-gradient(to bottom, transparent 0%, black 8%,  black 82%, transparent 100%);
  -webkit-mask-composite: source-in;
  mask-image:
    linear-gradient(to right,  transparent 0%, black 12%, black 88%, transparent 100%),
    linear-gradient(to bottom, transparent 0%, black 8%,  black 82%, transparent 100%);
  mask-composite: intersect;
}

/* Hero text container – plain when no image */
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 760px;
  margin: 0 auto;
  border-radius: var(--radius);
  transition: background var(--transition), border-color var(--transition),
              backdrop-filter var(--transition), padding var(--transition);
}

/* Glass-canvas treatment when bg image is active */
#hero.hero-has-bg .hero-inner {
  background: rgba(26, 26, 46, 0.52);
  border: 1px solid rgba(108, 99, 255, 0.22);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  box-shadow: 0 8px 48px rgba(0, 0, 0, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  padding: 3rem 2.5rem;
}

[data-theme="light"] #hero.hero-has-bg .hero-inner {
  background: rgba(250, 250, 249, 0.58);
  border-color: rgba(108, 99, 255, 0.18);
  box-shadow: 0 8px 48px rgba(0, 0, 0, 0.10), inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.hero-title {
  font-size: clamp(3rem, 10vw, 6.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 1.25rem;
}

.hero-tagline {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: clamp(0.9rem, 1.5vw, 1.05rem);
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 2.5rem;
  line-height: 1.75;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Vision Section -------------------------------- */
.vision-content h2 { margin-top: 0; }

/* ---------- Features Grid --------------------------------- */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

@media (min-width: 640px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .features-grid { grid-template-columns: repeat(3, 1fr); }
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 1.5rem;
  transition: box-shadow var(--transition), transform var(--transition);
}

.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: rgba(108, 99, 255, 0.35);
}

.feature-card h3 {
  font-size: 1rem;
  margin: 0 0 0.5rem;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 0.9rem;
  margin: 0;
  color: var(--text-secondary);
}

/* ---------- Screenshots Section --------------------------- */
.section-intro {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 2.5rem;
  max-width: 640px;
}

.screenshot-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  margin-bottom: 4rem;
}

@media (min-width: 900px) {
  .screenshot-item {
    grid-template-columns: 3fr 2fr;
    align-items: center;
    gap: 2.5rem;
  }

  .screenshot-item--reverse {
    grid-template-columns: 2fr 3fr;
  }

  .screenshot-item--reverse .screenshot-frame {
    order: 2;
  }

  .screenshot-item--reverse .screenshot-caption {
    order: 1;
  }
}

.screenshot-frame {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow-lg);
  background: #1A1A2E;
  transition: box-shadow var(--transition), transform var(--transition);
}

.screenshot-frame:hover {
  box-shadow: 0 12px 64px rgba(108, 99, 255, 0.22);
  transform: translateY(-3px);
}

.screenshot-frame img {
  display: block;
  width: 100%;
  height: auto;
}

.screenshot-caption {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.caption-number {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  opacity: 0.35;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.04em;
}

.screenshot-caption h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 0.5rem;
}

.screenshot-caption p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* ---------- Deployment / Markdown content ---------------- */
.md-content h2 { margin-top: 0; }
.md-content h3 { color: var(--accent-soft); }
.md-content h4 { color: var(--text-primary); }

/* Code blocks */
.md-content pre,
pre {
  position: relative;
  background: var(--code-bg);
  border: 1px solid rgba(108, 99, 255, 0.2);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1rem 1.25rem 1.25rem;
  overflow-x: auto;
  margin: 1rem 0;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.85rem;
  line-height: 1.65;
  color: #E0DFF8;
}

.md-content code,
code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.85em;
  background: rgba(108, 99, 255, 0.15);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  color: var(--accent-glow);
}

pre code {
  background: none;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

/* Copy button */
.copy-btn {
  position: absolute;
  top: 0.65rem;
  right: 0.65rem;
  padding: 0.3rem 0.7rem;
  font-size: 0.72rem;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  background: rgba(108, 99, 255, 0.2);
  border: 1px solid rgba(108, 99, 255, 0.3);
  border-radius: 4px;
  color: var(--accent-soft);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}

.copy-btn:hover { background: rgba(108, 99, 255, 0.4); color: #fff; }
.copy-btn.copied { background: rgba(0, 201, 167, 0.25); border-color: var(--success); color: var(--success); }

/* ---------- Modal / Lightbox ------------------------------ */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  animation: fadeIn 0.2s ease both;
}

.modal-overlay[hidden] { display: none; }

.modal-box {
  position: relative;
  background: var(--surface-2);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 2.5rem;
  max-width: 720px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: transparent;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), color var(--transition);
}

.modal-close:hover {
  background: rgba(108, 99, 255, 0.12);
  color: var(--text-primary);
}

.footer-impressum-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-family: inherit;
  padding: 0;
  transition: color var(--transition);
}

.footer-impressum-btn:hover { color: var(--accent-soft); }

/* ---------- Feature Card Icons ---------------------------- */
.feature-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(108, 99, 255, 0.12);
  color: var(--accent-soft);
  margin-bottom: 0.75rem;
  flex-shrink: 0;
}

.feature-card-icon svg {
  width: 20px;
  height: 20px;
}

.btn-icon svg,
.modal-close svg {
  width: 16px;
  height: 16px;
  pointer-events: none;
}

/* ---------- Footer ---------------------------------------- */
.footer {
  border-top: 1px solid var(--card-border);
  padding: 2.5rem 1.5rem;
  text-align: center;
  background: var(--surface);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a { font-size: 0.9rem; color: var(--text-secondary); }
.footer-links a:hover { color: var(--accent-soft); }

.footer-copy { font-size: 0.82rem; color: var(--muted); }

/* ---------- Animations ------------------------------------ */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(32px); }
  to   { opacity: 1; transform: translateY(0); }
}

.animate-fade-in  { animation: fadeIn  0.6s ease both; }
.animate-slide-up { animation: slideUp 0.7s ease both; }

/* Intersection observer invisible state */
.anim-hidden {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.anim-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive: Mobile Menu ----------------------- */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--card-border);
    padding: 1rem;
    gap: 0.25rem;
    z-index: 99;
  }

  .nav-links.open { display: flex; }
  .nav-hamburger { display: flex; }

  .nav-links a { padding: 0.65rem 1rem; width: 100%; }

  .glass-card { padding: 1.25rem; }
}

/* ---------- Section Dividers ------------------------------ */
.section + .section {
  padding-top: 0;
}

/* Utility */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }