/* ============================================================
   Variant D: "Neon Therapy"
   Fonts: Space Mono + DM Sans
   Colors: Deep navy bg, emerald/purple/cyan neon glows
   Signature: Privacy badge glows bright green, animated gradient bg
   ============================================================ */

/* Fonts loaded via <link> in HTML to avoid render-blocking @import */

:root {
  --font-display: 'Space Mono', monospace;
  --font-body: 'DM Sans', sans-serif;

  /* Neon dark palette */
  --color-bg: #0A0E1A;
  --color-bg-alt: #111627;
  --color-surface: #161B2E;
  --color-text: #E8ECF4;
  --color-text-secondary: #9BA3B5;
  --color-text-muted: #5C6478;
  --color-border: #242B3F;
  --color-primary: #34D399;
  --color-primary-light: #6EE7B7;
  --color-primary-dark: #10B981;
  --color-btn-text: #0A0E1A;
  --color-neon-purple: #A78BFA;
  --color-neon-cyan: #22D3EE;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.6);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
}

/* --- Animated gradient background --- */
body {
  background: var(--color-bg);
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(52, 211, 153, 0.06) 0%, transparent 50%),
              radial-gradient(ellipse at 80% 20%, rgba(167, 139, 250, 0.05) 0%, transparent 50%),
              radial-gradient(ellipse at 60% 80%, rgba(34, 211, 238, 0.04) 0%, transparent 50%);
  z-index: -1;
  animation: gradientShift 15s ease-in-out infinite alternate;
}

/* --- Nav (glassmorphism) --- */
.nav {
  background: rgba(10, 14, 26, 0.7);
  backdrop-filter: blur(16px) saturate(1.5);
  -webkit-backdrop-filter: blur(16px) saturate(1.5);
  border-bottom: 1px solid rgba(52, 211, 153, 0.15);
}

.nav__logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  letter-spacing: 0.02em;
  background: linear-gradient(135deg, var(--color-primary), var(--color-neon-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav__cta.btn--primary {
  background: var(--color-primary);
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.nav__cta.btn--primary:hover {
  background: var(--color-primary-light);
}

.nav__link {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--text-sm);
}

/* --- Hero --- */
.hero {
  padding-block: var(--space-2xl) var(--space-2xl);
  text-align: center;
}

.hero__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2xl);
}

/* --- Tighter section spacing --- */
.section {
  padding-block: var(--space-3xl);
}

.section--sm {
  padding-block: var(--space-xl);
}

.hero__content {
  max-width: 680px;
}

.hero__eyebrow {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-neon-cyan);
  margin-bottom: var(--space-lg);
  margin-inline: auto;
}

.cta-section__note {
  margin-inline: auto;
}

.hero__title {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-5xl);
  line-height: 1.1;
  margin-bottom: var(--space-xl);
  background: linear-gradient(135deg, var(--color-text), var(--color-primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-inline: auto;
  margin-bottom: var(--space-xl);
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.hero__cta {
  font-family: var(--font-body);
  font-weight: 600;
  border-radius: var(--radius-full);
  padding: 1rem 2.5rem;
  background: var(--color-primary);
  box-shadow: 0 0 30px rgba(52, 211, 153, 0.3);
  transition: box-shadow var(--duration-normal), transform var(--duration-fast) var(--ease-out);
}

.hero__cta:hover {
  box-shadow: 0 0 50px rgba(52, 211, 153, 0.5);
  transform: translateY(-2px);
}

.hero__price {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* --- Mockup (Floating glassmorphism card) --- */
.hero__visual {
  display: flex;
  justify-content: center;
}

.hero__mockup {
  width: 100%;
  max-width: 360px;
}

.mockup__screen {
  background: rgba(22, 27, 46, 0.8);
  border: 1px solid rgba(52, 211, 153, 0.2);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  backdrop-filter: blur(20px);
  box-shadow: 0 0 40px rgba(52, 211, 153, 0.08), var(--shadow-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.mockup__mood-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-sm);
}

.mockup__mood {
  font-size: 1.8rem;
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  flex: 1;
  text-align: center;
  transition: all var(--duration-normal);
}

.mockup__mood--active {
  background: rgba(52, 211, 153, 0.1);
  border-color: rgba(52, 211, 153, 0.4);
  box-shadow: 0 0 20px rgba(52, 211, 153, 0.15);
}

.mockup__chart {
  padding: var(--space-md);
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.mockup__chart-svg {
  width: 100%;
  height: auto;
}

.mockup__chart-line {
  stroke-dasharray: 500;
  stroke-dashoffset: 500;
  animation: drawLine 2s var(--ease-out) forwards;
  animation-delay: 0.8s;
  filter: drop-shadow(0 0 4px rgba(52, 211, 153, 0.4));
}

.mockup__tags {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.mockup__tag {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  padding: var(--space-xs) var(--space-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
}

/* --- AI Block --- */
.ai-block__text {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  line-height: 1.8;
  color: var(--color-text-secondary);
  max-width: 68ch;
  margin-inline: auto;
  text-align: center;
}

/* --- Aha Section --- */
.aha__heading {
  font-family: var(--font-body);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--space-md);
}

.aha__text {
  text-align: center;
  margin-inline: auto;
  margin-bottom: var(--space-2xl);
}

.aha__before-after {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.aha__panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  backdrop-filter: blur(10px);
}

.aha__panel--after {
  border-color: rgba(52, 211, 153, 0.3);
  box-shadow: 0 0 30px rgba(52, 211, 153, 0.05);
}

.aha__panel-title {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

.aha__panel--after .aha__panel-title {
  color: var(--color-primary);
}

.aha__cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
  min-height: 120px;
}

.aha__cloud-word {
  font-family: var(--font-body);
  font-size: calc(var(--size, 1) * 1rem);
  color: var(--color-text-muted);
  opacity: 0.3;
}

.aha__clarity {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.aha__insight {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: rgba(52, 211, 153, 0.05);
  border-radius: var(--radius-md);
}

.aha__insight-icon {
  font-size: 1.2rem;
}

.aha__insight-text {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text);
}

/* --- Features (Floating cards) --- */
.features__heading {
  font-family: var(--font-body);
  font-weight: 700;
}

.features__sub {
  margin-bottom: var(--space-2xl);
}

/* Apple icon in buttons — match button text color (dark on green bg) */
.btn__icon {
  filter: none;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  text-align: center;
  transition: border-color var(--duration-normal), box-shadow var(--duration-normal);
}

.feature-card:hover {
  border-color: rgba(52, 211, 153, 0.3);
  box-shadow: 0 0 30px rgba(52, 211, 153, 0.06);
  transform: translateY(-4px);
}

.feature-card__icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
  width: 56px;
  height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(52, 211, 153, 0.08);
  border-radius: var(--radius-lg);
}

.feature-card .card__title {
  font-family: var(--font-body);
  font-weight: 600;
}

.feature-card .card__text {
  font-family: var(--font-body);
}

/* --- How It Works --- */
.how-it-works__steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  text-align: center;
}

.how-it-works__step {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  position: relative;
}

.how-it-works__step:hover {
  border-color: rgba(52, 211, 153, 0.3);
  box-shadow: 0 0 30px rgba(52, 211, 153, 0.06);
  transform: translateY(-4px);
}

.how-it-works__number {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  text-shadow: 0 0 20px rgba(52, 211, 153, 0.3);
}

.how-it-works__step .card__title {
  font-family: var(--font-body);
  font-weight: 600;
}

.how-it-works__step .card__text {
  font-family: var(--font-body);
}

/* --- Privacy (GLOWING badge - signature element) --- */
.privacy__badge-wrap {
  margin-bottom: var(--space-xl);
}

.privacy-badge {
  font-family: var(--font-display);
  font-weight: 700;
  border-radius: var(--radius-full);
  background: rgba(52, 211, 153, 0.08);
  border: 2px solid var(--color-primary);
  box-shadow: 0 0 20px rgba(52, 211, 153, 0.3),
              0 0 60px rgba(52, 211, 153, 0.15),
              inset 0 0 20px rgba(52, 211, 153, 0.05);
  animation: privacyGlow 3s ease-in-out infinite alternate;
}

@keyframes privacyGlow {
  0% {
    box-shadow: 0 0 20px rgba(52, 211, 153, 0.3),
                0 0 60px rgba(52, 211, 153, 0.15);
  }
  100% {
    box-shadow: 0 0 30px rgba(52, 211, 153, 0.5),
                0 0 80px rgba(52, 211, 153, 0.25),
                0 0 120px rgba(52, 211, 153, 0.1);
  }
}

.privacy__heading {
  font-family: var(--font-body);
  font-weight: 700;
  margin-bottom: var(--space-2xl);
}

.privacy__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  text-align: left;
  max-width: var(--max-width-narrow);
  margin-inline: auto;
  margin-bottom: var(--space-xl);
}

.privacy__item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  padding: var(--space-sm) var(--space-md);
  background: rgba(52, 211, 153, 0.04);
  border: 1px solid rgba(52, 211, 153, 0.12);
  border-radius: var(--radius-md);
}

.privacy__check {
  color: var(--color-primary);
  text-shadow: 0 0 8px rgba(52, 211, 153, 0.5);
}

.privacy__link {
  font-family: var(--font-body);
  font-weight: 600;
}

/* --- CTA --- */
.cta-section {
  background: linear-gradient(135deg, rgba(52, 211, 153, 0.08), rgba(167, 139, 250, 0.06));
  border-radius: var(--radius-xl);
  max-width: var(--max-width);
  margin-inline: auto;
}

.cta-section__heading {
  font-family: var(--font-body);
  font-weight: 700;
}

/* --- FAQ --- */
.faq__item summary {
  font-family: var(--font-body);
  font-weight: 600;
}

.faq__answer {
  font-family: var(--font-body);
}

.faq__item {
  border-bottom-color: var(--color-border);
}

/* --- Footer --- */
.footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
}

.footer__brand-name {
  font-family: var(--font-display);
  background: linear-gradient(135deg, var(--color-primary), var(--color-neon-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer__col-title {
  font-family: var(--font-display);
  font-size: var(--text-xs);
}

.footer__link {
  font-family: var(--font-body);
}

/* --- Article content — justified text, centered headings --- */
.container--narrow {
  text-align: justify;
}

.container--narrow h1,
.container--narrow h2,
.container--narrow h3,
.container--narrow h4 {
  text-align: center;
}

.container--narrow p,
.container--narrow blockquote,
.container--narrow ul,
.container--narrow ol {
  margin-inline: auto;
}

/* --- Blockquote — neon accent --- */
blockquote {
  position: relative;
  max-width: 55ch;
  margin-inline: auto;
  margin-block: var(--space-xl);
  padding: var(--space-lg) var(--space-xl);
  background: rgba(52, 211, 153, 0.04);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--color-text);
  line-height: 1.7;
  text-align: left;
}

blockquote cite {
  display: block;
  margin-top: var(--space-sm);
  font-style: normal;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 600;
}

/* --- Article lists --- */
.container--narrow ul,
.container--narrow ol {
  max-width: 55ch;
  text-align: left;
  margin-block: var(--space-md);
  padding-left: 1.25em;
}

.container--narrow ul {
  list-style: disc;
}

.container--narrow ol {
  list-style: decimal;
}

.container--narrow li {
  margin-bottom: var(--space-sm);
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.container--narrow li strong {
  color: var(--color-text);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .hero__inner {
    flex-direction: column;
  }

  .aha__before-after {
    grid-template-columns: 1fr;
  }

  .features__grid,
  .how-it-works__steps {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 480px) {
  .privacy__grid {
    grid-template-columns: 1fr;
  }
}