/* styles.css — ChronicGuard components */

/* ---------- Layout primitives ---------- */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 5vw, var(--space-12));
}
.container--narrow {
  max-width: var(--content-default);
}

section {
  padding-block: clamp(var(--space-16), 9vw, var(--space-32));
  position: relative;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.eyebrow::before {
  content: '';
  width: 1.6rem;
  height: 2px;
  border-radius: 2px;
  background: var(--color-primary);
  opacity: 0.6;
}

.section-head {
  max-width: 60ch;
  margin-bottom: clamp(var(--space-8), 5vw, var(--space-16));
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-top: var(--space-4);
}
.section-head p {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  margin-top: var(--space-4);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  padding: 0.85em 1.4em;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  text-decoration: none;
  white-space: nowrap;
}
.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}
.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn--ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}
.btn svg {
  width: 1.1em;
  height: 1.1em;
}

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: color-mix(in oklab, var(--color-bg) 82%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.header--scrolled {
  border-bottom-color: var(--color-divider);
  box-shadow: var(--shadow-sm);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  height: 4.5rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
}
.brand__logo {
  width: 2.1rem;
  height: 2.1rem;
  color: var(--color-primary);
  flex-shrink: 0;
}
.brand__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
}
.brand__name span {
  color: var(--color-primary);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}
.nav__links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
}
.nav__links a:hover {
  color: var(--color-text);
}
.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}
.icon-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.nav-toggle {
  display: none;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding-top: clamp(var(--space-16), 8vw, var(--space-24));
  padding-bottom: clamp(var(--space-16), 8vw, var(--space-24));
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--hero-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--hero-grid) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 70% 25%, #000 0%, transparent 75%);
  mask-image: radial-gradient(ellipse 80% 70% at 70% 25%, #000 0%, transparent 75%);
  pointer-events: none;
}
.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(var(--space-10), 5vw, var(--space-20));
  align-items: center;
}
.hero__pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.45em 0.9em;
  border-radius: var(--radius-full);
  background: var(--color-primary-tint);
  border: 1px solid var(--color-primary-soft);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.02em;
}
.hero__pill .dot {
  width: 7px;
  height: 7px;
  border-radius: var(--radius-full);
  background: var(--color-accent-leaf);
}
.hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  letter-spacing: -0.025em;
  margin-top: var(--space-5);
}
.hero h1 em {
  font-style: normal;
  color: var(--color-primary);
}
.hero__lead {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-top: var(--space-5);
  max-width: 46ch;
}
.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-8);
}
.hero__note {
  margin-top: var(--space-6);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.hero__note svg {
  width: 1rem;
  height: 1rem;
  color: var(--color-primary);
}

/* Phone mockup */
.phone {
  position: relative;
  width: min(280px, 80%);
  margin-inline: auto;
  aspect-ratio: 280 / 580;
  background: var(--color-surface-2);
  border: 10px solid #11201f;
  border-radius: 2.4rem;
  box-shadow: var(--shadow-lg);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
[data-theme='dark'] .phone { border-color: #05100f; }
.phone__notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 36%;
  height: 1.1rem;
  background: #11201f;
  border-radius: 0 0 0.8rem 0.8rem;
}
.phone__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-3);
}
.phone__top strong {
  font-family: var(--font-display);
  font-size: 0.95rem;
}
.phone__top .chip {
  font-size: 0.62rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-tint);
  padding: 0.2em 0.6em;
  border-radius: var(--radius-full);
}
.phone__card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  padding: var(--space-3);
}
.phone__card .label {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-faint);
  font-weight: 600;
}
.phone__med {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
}
.phone__med .pillicon {
  width: 1.9rem;
  height: 1.9rem;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  background: var(--color-primary-tint);
  color: var(--color-primary);
  flex-shrink: 0;
}
.phone__med .pillicon svg { width: 1.1rem; height: 1.1rem; }
.phone__med b { font-size: 0.78rem; display: block; }
.phone__med span { font-size: 0.65rem; color: var(--color-text-muted); }
.phone__med .done {
  margin-left: auto;
  color: var(--color-success);
}
.phone__med .done svg { width: 1.2rem; height: 1.2rem; }
.phone__reading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: var(--space-2);
}
.phone__reading .v {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-text);
}
.phone__reading .v small { font-size: 0.6rem; color: var(--color-text-muted); font-weight: 500;}
.phone__reading .ok {
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--color-success);
  background: var(--color-success-soft);
  padding: 0.2em 0.55em;
  border-radius: var(--radius-full);
}
.phone__bar {
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-divider);
  overflow: hidden;
  margin-top: var(--space-2);
}
.phone__bar i { display: block; height: 100%; width: 72%; background: linear-gradient(90deg, var(--color-accent-leaf), var(--color-primary)); border-radius: inherit;}

/* ---------- Trust strip ---------- */
.trust {
  padding-block: var(--space-12);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
  background: var(--color-surface);
}
.trust__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}
.trust__item .k {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-primary);
}
.trust__item .v {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ---------- Problem ---------- */
.problem__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.prob-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.prob-card .num {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1;
}
.prob-card h3 {
  font-size: var(--text-base);
  font-weight: 600;
  margin-top: var(--space-3);
}
.prob-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

/* ---------- Solution / How it works ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}
.step {
  display: flex;
  gap: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.step__icon {
  width: 3rem;
  height: 3rem;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  background: var(--color-primary-tint);
  color: var(--color-primary);
}
.step__icon svg { width: 1.5rem; height: 1.5rem; }
.step h3 {
  font-size: var(--text-base);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.step h3 .ix {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-weight: 600;
}
.step p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

/* ---------- Safety ---------- */
.safety {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-10), 6vw, var(--space-20));
  position: relative;
  overflow: hidden;
}
[data-theme='dark'] .safety { background: var(--color-surface-2); border: 1px solid var(--color-border); color: var(--color-text); }
.safety .eyebrow { color: inherit; opacity: 0.95; }
.safety .eyebrow::before { background: currentColor; }
.safety h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-top: var(--space-4);
  max-width: 22ch;
  color: inherit;
}
.safety__lead {
  margin-top: var(--space-4);
  font-size: var(--text-base);
  opacity: 0.92;
  max-width: 52ch;
}
[data-theme='dark'] .safety__lead { color: var(--color-text-muted); opacity: 1; }
.safety__list {
  list-style: none;
  margin-top: var(--space-10);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5) var(--space-8);
}
.safety__list li {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  font-size: var(--text-sm);
}
.safety__list .ic {
  flex-shrink: 0;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: var(--radius-full);
  display: grid;
  place-items: center;
  background: color-mix(in oklab, currentColor 16%, transparent);
}
.safety__list .ic svg { width: 0.95rem; height: 0.95rem; }
.safety__list b { font-weight: 600; }
.safety__list span { opacity: 0.85; }

/* ---------- Audience ---------- */
.audience__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}
.aud-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.aud-card .ic {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  background: var(--color-primary-tint);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.aud-card .ic svg { width: 1.4rem; height: 1.4rem; }
.aud-card h3 { font-size: var(--text-base); font-weight: 600; }
.aud-card p { font-size: var(--text-sm); color: var(--color-text-muted); margin-top: var(--space-2); }

/* ---------- Roadmap ---------- */
.roadmap__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  counter-reset: phase;
}
.phase {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.phase__tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-primary);
  text-transform: uppercase;
}
.phase__tag .days {
  background: var(--color-primary-tint);
  padding: 0.15em 0.55em;
  border-radius: var(--radius-full);
}
.phase h3 { font-size: var(--text-base); font-weight: 600; margin-top: var(--space-3); }
.phase ul { list-style: none; margin-top: var(--space-4); display: flex; flex-direction: column; gap: var(--space-2); }
.phase li { font-size: var(--text-sm); color: var(--color-text-muted); display: flex; gap: var(--space-2); }
.phase li svg { width: 1rem; height: 1rem; color: var(--color-accent-leaf); flex-shrink: 0; margin-top: 0.2em; }

/* ---------- Founder note ---------- */
.founder {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-8), 5vw, var(--space-16));
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(var(--space-6), 4vw, var(--space-12));
  align-items: start;
}
.founder__avatar {
  width: 5rem;
  height: 5rem;
  border-radius: var(--radius-full);
  display: grid;
  place-items: center;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.6rem;
}
.founder blockquote {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.45;
}
.founder blockquote p + p { margin-top: var(--space-4); font-family: var(--font-body); font-size: var(--text-base); font-weight: 400; color: var(--color-text-muted); line-height: 1.6;}
.founder__by {
  margin-top: var(--space-6);
  font-size: var(--text-sm);
}
.founder__by b { display: block; font-family: var(--font-display); }
.founder__by span { color: var(--color-text-muted); }

/* ---------- Waitlist / CTA ---------- */
.waitlist {
  text-align: center;
  z-index: 1;
}
.waitlist__inner {
  max-width: 620px;
  margin-inline: auto;
  position: relative;
  z-index: 2;
}
.waitlist h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  letter-spacing: -0.02em;
}
.waitlist p {
  color: var(--color-text-muted);
  margin: var(--space-4) auto 0;
}
.waitlist__actions {
  margin-top: var(--space-8);
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}
.waitlist__actions .btn {
  position: relative;
  z-index: 2;
  cursor: pointer;
}
.waitlist__note {
  max-width: 48ch;
  font-size: var(--text-sm);
}
.waitlist__note a {
  color: var(--color-primary);
  font-weight: 600;
}
.waitlist__blocked {
  display: block;
  max-width: 48ch;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  background: var(--color-surface-2);
  font-size: var(--text-sm);
}
.waitlist__blocked a {
  color: var(--color-primary);
  font-weight: 700;
  position: relative;
  z-index: 2;
  cursor: pointer;
}
.form {
  margin-top: var(--space-8);
  display: flex;
  gap: var(--space-3);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-2);
  box-shadow: var(--shadow-sm);
}
.form input {
  flex: 1;
  min-width: 0;
  border: none;
  background: transparent;
  padding: 0.7em 1em;
  font-size: var(--text-sm);
  outline: none;
}
.form input::placeholder { color: var(--color-text-faint); }
.form .btn { flex-shrink: 0; }
.form__row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
  justify-content: center;
  margin-top: var(--space-5);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.form__row span { display: inline-flex; align-items: center; gap: var(--space-2); }
.form__row svg { width: 0.9rem; height: 0.9rem; color: var(--color-primary); }
.form__success {
  margin-top: var(--space-6);
  display: none;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-success);
}
.form__success.show { display: flex; }
.form__success svg { width: 1.2rem; height: 1.2rem; }

/* ---------- Contact ---------- */
.contact {
  padding-top: 0;
}
.contact__card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-8);
  align-items: center;
  background: linear-gradient(135deg, var(--color-surface), var(--color-surface-2));
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-6), 4vw, var(--space-10));
  box-shadow: var(--shadow-sm);
}
.contact__card h2 {
  margin-top: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  letter-spacing: -0.02em;
}
.contact__card p {
  max-width: 62ch;
  margin-top: var(--space-4);
  color: var(--color-text-muted);
}
.contact__email {
  display: grid;
  gap: var(--space-1);
  min-width: min(100%, 20rem);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  text-decoration: none;
  box-shadow: var(--shadow-md);
}
.contact__email span {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.78;
}
.contact__email strong {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
}
.contact__email:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-12);
  background: var(--color-surface);
}
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  align-items: center;
  justify-content: space-between;
}
.footer__brand { display: flex; align-items: center; gap: var(--space-3); }
.footer__brand .brand__logo { width: 1.8rem; height: 1.8rem; }
.footer__meta { font-size: var(--text-xs); color: var(--color-text-faint); max-width: 48ch; }
.footer__links { display: flex; gap: var(--space-5); list-style: none; flex-wrap: wrap; }
.footer__links a { font-size: var(--text-sm); color: var(--color-text-muted); text-decoration: none; }
.footer__links a:hover { color: var(--color-primary); }
.footer__disclaimer {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  line-height: 1.6;
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__media { order: -1; }
  .phone { width: min(240px, 70%); }
  .trust__grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
  .problem__grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .safety__list { grid-template-columns: 1fr; }
  .audience__grid { grid-template-columns: repeat(2, 1fr); }
  .roadmap__grid { grid-template-columns: 1fr; }
  .founder { grid-template-columns: 1fr; }
  .contact__card { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav__links { display: none; }
  .nav-toggle { display: inline-grid; }
  .nav__links--open {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
    position: absolute;
    top: 4.5rem;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-divider);
    padding: var(--space-6) clamp(var(--space-5), 5vw, var(--space-12));
    box-shadow: var(--shadow-md);
  }
  .nav__links--open a { font-size: var(--text-base); }
}

@media (max-width: 520px) {
  .audience__grid { grid-template-columns: 1fr; }
  .form { flex-direction: column; border-radius: var(--radius-lg); }
  .form .btn { width: 100%; }
  .hero__cta .btn { flex: 1; }
  .waitlist__actions .btn { width: 100%; }
}