@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Outfit:wght@500;600;700;800&display=swap');

:root {
  /* Aurora Theme - Light Mode Colors */
  --primary: #A435D2;
  --primary-rgb: 164, 53, 210;
  --primary-gradient: linear-gradient(135deg, #A435D2, #E0529C);
  --hero-backdrop: linear-gradient(180deg, #FBF6FF, #FFFFFF);
  --bg: #FFFFFF;
  --text: #120A21;
  --text-secondary: rgba(18, 10, 33, 0.75);
  --text-tertiary: rgba(18, 10, 33, 0.50);
  --surface: rgba(255, 255, 255, 0.70);
  --surface-border: rgba(164, 53, 210, 0.12);
  --shadow: rgba(164, 53, 210, 0.08);
  --ring-backdrop: rgba(18, 10, 33, 0.05);
  --slider-track: rgba(164, 53, 210, 0.15);
  --accent-light: #F8EDFF;
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --maxw: 1040px;
  
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    /* Aurora Theme - Dark Mode Colors */
    --primary: #D0FF00;
    --primary-rgb: 208, 255, 0;
    --primary-gradient: linear-gradient(135deg, #D0FF00, #5DE0A6, #37B6E9);
    --hero-backdrop: linear-gradient(180deg, #120E1C, #000000);
    --bg: #000000;
    --text: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.75);
    --text-tertiary: rgba(255, 255, 255, 0.50);
    --surface: rgba(18, 14, 28, 0.65);
    --surface-border: rgba(208, 255, 0, 0.15);
    --shadow: rgba(208, 255, 0, 0.04);
    --ring-backdrop: rgba(255, 255, 255, 0.06);
    --slider-track: rgba(255, 255, 255, 0.15);
    --accent-light: rgba(208, 255, 0, 0.08);
  }
}

/* Localized Display Logic */
[lang="en"] .lang-da { display: none !important; }
[lang="da"] .lang-en { display: none !important; }

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Selection highlight */
::selection {
  background-color: rgba(var(--primary-rgb), 0.2);
  color: var(--text);
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Navigation */
header {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 10;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.2);
}

.logo-icon svg {
  fill: #fff;
  width: 20px;
  height: 20px;
}

@media (prefers-color-scheme: dark) {
  .logo-icon svg {
    fill: #000;
  }
}

.logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  padding: 3px;
  border-radius: 9px;
  gap: 2px;
  backdrop-filter: blur(8px);
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition);
}

.lang-btn:hover {
  color: var(--text);
}

.lang-btn.active {
  background: var(--primary);
  color: var(--bg) !important;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-gradient);
  color: #fff;
  font-weight: 600;
  font-family: var(--font-body);
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 15px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(var(--primary-rgb), 0.15);
  text-decoration: none;
  gap: 8px;
}

@media (prefers-color-scheme: dark) {
  .btn {
    color: #000;
  }
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(var(--primary-rgb), 0.25);
}

.btn:active {
  transform: translateY(0);
}

.btn-ghost {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--surface-border);
  box-shadow: none;
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  background: var(--accent-light);
  box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.08);
}

/* App Store Badge Button */
.app-store-badge {
  display: inline-flex;
  align-items: center;
  background: #000000;
  color: #ffffff !important;
  padding: 10px 20px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  text-decoration: none;
  transition: var(--transition);
  text-align: left;
  gap: 12px;
}

.app-store-badge:hover {
  background: #111111;
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.app-store-badge svg {
  fill: currentColor;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.badge-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.badge-sub {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
  opacity: 0.8;
}

.badge-main {
  font-size: 16px;
  font-weight: 600;
  font-family: var(--font-heading);
}

/* Sections */
section {
  padding: 80px 0;
  position: relative;
}

/* Hero Section */
.hero-container {
  background: var(--hero-backdrop);
  position: relative;
  overflow: hidden;
  padding-bottom: 40px;
}

/* Aurora background glow effects */
.hero-container::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(circle, rgba(var(--primary-rgb), 0.12) 0%, rgba(var(--primary-rgb), 0) 70%);
  filter: blur(50px);
  z-index: 1;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.eyebrow {
  color: var(--primary);
  font-weight: 600;
  font-family: var(--font-heading);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
  display: inline-block;
  background: var(--accent-light);
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid var(--surface-border);
}

h1 {
  font-family: var(--font-heading);
  font-size: clamp(38px, 6vw, 60px);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  color: var(--text);
}

h1 span {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.lead {
  font-size: clamp(17px, 2.2vw, 20px);
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 32em;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 20px;
}

.trust-badge-row {
  display: flex;
  gap: 20px;
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: 10px;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.trust-item svg {
  width: 16px;
  height: 16px;
  fill: var(--primary);
}

/* Interactive Simulator / Ring Card */
.simulator-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: 0 12px 40px var(--shadow);
  backdrop-filter: blur(16px);
  position: relative;
  z-index: 2;
  transition: transform 0.3s ease;
}

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

.ring-container {
  position: relative;
  width: 180px;
  height: 180px;
  margin-bottom: 24px;
}

.progress-ring-svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.progress-ring-circle-bg {
  fill: none;
  stroke: var(--ring-backdrop);
  stroke-width: 10;
}

.progress-ring-circle {
  fill: none;
  stroke: var(--primary);
  stroke-width: 10;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.4s cubic-bezier(0.4, 0, 0.2, 1), stroke 0.4s ease;
}

/* Glow filter definition */
.ring-glow {
  filter: drop-shadow(0px 0px 8px rgba(var(--primary-rgb), 0.4));
}

.ring-labels {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  width: 100%;
}

.ring-value {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
}

.ring-target {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 4px;
  font-weight: 500;
}

/* Slider Controls */
.slider-control-box {
  width: 100%;
  margin-bottom: 20px;
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.steps-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--slider-track);
  outline: none;
  cursor: pointer;
  transition: var(--transition);
}

.steps-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--text);
  border: 3px solid var(--primary);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  transition: var(--transition);
}

.steps-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.steps-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--text);
  border: 3px solid var(--primary);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  transition: var(--transition);
}

.steps-slider::-moz-range-thumb:hover {
  transform: scale(1.15);
}

/* Dynamic benefit text */
.benefit-display {
  text-align: center;
  min-height: 64px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  border-top: 1px solid var(--surface-border);
  padding-top: 16px;
  width: 100%;
}

.benefit-title {
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary);
  margin-bottom: 4px;
  transition: var(--transition);
}

.benefit-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.4;
  max-width: 24em;
  transition: var(--transition);
}

/* Feature Grid Section */
.section-title-area {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 56px;
}

h2 {
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 16px;
}

.section-title-area p {
  color: var(--text-secondary);
  font-size: 16px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: 0 8px 30px var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(16px);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(var(--primary-rgb), 0.08);
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--primary);
}

.card-icon svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.card h3 {
  font-family: var(--font-heading);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
  color: var(--text);
}

.card p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.5;
}

/* App Showcase Section */
.showcase-container {
  background: var(--hero-backdrop);
}

.showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: center;
}

.showcase-controls {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.showcase-tab {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 24px;
  cursor: pointer;
  text-align: left;
  transition: var(--transition);
  opacity: 0.7;
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 20px var(--shadow);
}

.showcase-tab:hover {
  opacity: 0.9;
  transform: translateX(4px);
}

.showcase-tab.active {
  opacity: 1;
  border-color: var(--primary);
  box-shadow: 0 8px 30px rgba(var(--primary-rgb), 0.12);
  transform: scale(1.02) translateX(6px);
}

.showcase-tab-title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.showcase-tab-title span.badge-pro {
  background: var(--primary);
  color: var(--bg);
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 4px;
  letter-spacing: 0.05em;
}

@media (prefers-color-scheme: dark) {
  .showcase-tab-title span.badge-pro {
    color: #000;
  }
}

.showcase-tab-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* CSS Phone Mockup */
.mockup-container {
  display: flex;
  justify-content: center;
  position: relative;
}

.phone-mockup {
  position: relative;
  width: 280px;
  height: 570px;
  background: #000;
  border-radius: 40px;
  border: 10px solid #1a1a1a;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4), 
              inset 0 0 4px rgba(255, 255, 255, 0.2);
  overflow: hidden;
  z-index: 2;
}

/* Dynamic Island */
.dynamic-island {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 85px;
  height: 22px;
  background: #000;
  border-radius: 12px;
  z-index: 10;
}

.mockup-screen {
  width: 100%;
  height: 100%;
  background: #15101F;
  position: relative;
}

.screenshot-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(0.98);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.screenshot-img.active {
  opacity: 1;
  transform: scale(1);
}

/* Science & Medical Rationale Section */
.science-section {
  position: relative;
}

.science-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: 0 12px 40px var(--shadow);
  backdrop-filter: blur(16px);
}

.science-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.science-content p {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 20px;
  line-height: 1.7;
}

.science-quote {
  font-style: italic;
  border-left: 3px solid var(--primary);
  padding-left: 18px;
  margin: 24px 0;
  font-size: 17px;
  color: var(--text);
  font-weight: 500;
}

.science-visual {
  display: flex;
  flex-direction: column;
  gap: 20px;
  background: var(--accent-light);
  padding: 32px;
  border-radius: var(--radius-md);
  border: 1px solid var(--surface-border);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 44px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-top: 4px;
}

.stat-sub {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 2px;
}

.citation-link {
  font-size: 13px;
  color: var(--primary);
  text-decoration: underline;
  font-weight: 500;
  transition: var(--transition);
}

.citation-link:hover {
  opacity: 0.8;
}

/* Privacy transparency Section */
.privacy-section {
  text-align: center;
  position: relative;
  overflow: hidden;
}

.privacy-section::before {
  content: '';
  position: absolute;
  bottom: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 300px;
  background: radial-gradient(circle, rgba(var(--primary-rgb), 0.08) 0%, rgba(var(--primary-rgb), 0) 70%);
  filter: blur(40px);
  z-index: 1;
}

.privacy-badge-container {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  padding: 32px 48px;
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px var(--shadow);
  backdrop-filter: blur(12px);
  position: relative;
  z-index: 2;
  max-width: 600px;
}

.privacy-label-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #000;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  padding: 10px 20px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 24px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  letter-spacing: -0.01em;
  gap: 8px;
}

@media (prefers-color-scheme: dark) {
  .privacy-label-badge {
    border-color: rgba(255, 255, 255, 0.3);
  }
}

.privacy-label-badge svg {
  fill: currentColor;
  width: 18px;
  height: 18px;
}

.privacy-badge-container h3 {
  font-family: var(--font-heading);
  font-size: 24px;
  margin-bottom: 12px;
}

.privacy-badge-container p {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 20px;
  line-height: 1.5;
}

/* FAQ Accordion Section */
.faq-container {
  max-width: 760px;
  margin: 0 auto;
}

details {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  padding: 0;
  overflow: hidden;
  box-shadow: 0 4px 16px var(--shadow);
  backdrop-filter: blur(12px);
  transition: var(--transition);
}

details[open] {
  border-color: var(--primary);
  box-shadow: 0 6px 24px rgba(var(--primary-rgb), 0.08);
}

summary {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 17px;
  padding: 20px 24px;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text);
  user-select: none;
  outline: none;
}

/* Hide standard marker */
summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--text);
  border-bottom: 2px solid var(--text);
  transform: rotate(45deg);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  margin-right: 4px;
}

details[open] summary::after {
  transform: rotate(-135deg) translateY(-2px) translateX(-2px);
}

details p {
  padding: 0 24px 24px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.6;
}

/* Footer styling */
footer {
  padding: 56px 0;
  border-top: 1px solid var(--surface-border);
  color: var(--text-tertiary);
  font-size: 14px;
  background: var(--bg);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links-column {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

@media (max-width: 900px) {
  .footer-links-column {
    align-items: center;
    width: 100%;
    margin-top: 16px;
  }
  .footer-links-column .footer-links {
    justify-content: center;
  }
}

.footer-logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  text-decoration: none;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
}

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

/* Responsive Overrides */
@media (max-width: 900px) {
  section {
    padding: 60px 0;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .hero-content {
    align-items: center;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .trust-badge-row {
    justify-content: center;
  }
  
  .simulator-card {
    max-width: 420px;
    margin: 0 auto;
  }
  
  .showcase-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .mockup-container {
    order: -1;
  }
  
  .science-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-actions .btn, 
  .hero-actions .app-store-badge {
    width: 100%;
    text-align: center;
    justify-content: center;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}