/* =========================================================================
   M & M Coach -- marketing site styles
   Clinical-editorial aesthetic matching the iOS app: warm off-white,
   deep navy, muted teal, slate-gray. No gradients, no third-party CSS.
   ========================================================================= */

:root {
  /* Colors */
  --color-bg: #faf8f4;
  --color-bg-alt: #f2ede4;
  --color-surface: #ffffff;
  --color-navy: #00274c;
  --color-navy-strong: #001a34;
  --color-teal: #3a7d78;
  --color-teal-soft: rgba(58, 125, 120, 0.12);
  --color-slate: #5a636e;
  /* Darker than a typical "muted" tone on purpose: at this size (fine
     print/captions), anything lighter drops below 4.5:1 against
     --color-bg and fails WCAG AA for body text. */
  --color-slate-soft: #64707c;
  --color-text: #1c2530;
  --color-border: rgba(0, 39, 76, 0.12);
  --color-border-soft: rgba(0, 39, 76, 0.08);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(20, 30, 40, 0.05), 0 1px 1px rgba(20, 30, 40, 0.04);
  --shadow-md: 0 10px 30px rgba(0, 39, 76, 0.08);

  /* Radius */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 26px;
  --radius-pill: 999px;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;
  --space-9: 6rem;

  /* Layout */
  --max-width: 1160px;
  --header-height: 72px;

  /* Type */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";

  color-scheme: light;
}

/* ---- Reset ------------------------------------------------------------ */

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* Never allow the page to scroll sideways, no matter what a section does. */
html,
body {
  max-width: 100%;
  overflow-x: hidden;
}

img,
picture,
svg {
  max-width: 100%;
  display: block;
}

h1,
h2,
h3,
p,
ul,
ol {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

/* ---- Accessibility helpers --------------------------------------------- */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  z-index: 100;
  background: var(--color-navy);
  color: #fff;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: var(--space-3);
}

:focus-visible {
  outline: 2px solid var(--color-teal);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---- Layout helpers ----------------------------------------------------- */

.wrap {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.section {
  padding-block: var(--space-9);
}

.section--alt {
  background: var(--color-bg-alt);
}

.section__title {
  font-size: clamp(1.6rem, 1.3rem + 1.2vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-navy);
  max-width: 40ch;
}

.section__lead {
  margin-top: var(--space-4);
  max-width: 62ch;
  color: var(--color-slate);
  font-size: 1.05rem;
}

/* ---- Buttons ------------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1;
  border: 1.5px solid transparent;
  transition: transform 0.12s ease, background-color 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--color-navy);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--color-navy-strong);
}

.btn-secondary {
  background: transparent;
  color: var(--color-navy);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-navy);
  background: rgba(0, 39, 76, 0.04);
}

.btn-sm {
  padding: 0.6rem 1.15rem;
  font-size: 0.9rem;
}

/* ---- Header / nav -------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  /* Deliberately opaque, no backdrop-filter: a filter/backdrop-filter on
     this ancestor would create a CSS containing block for the mobile
     nav's `position: fixed` panel below, collapsing it to this header's
     own small box instead of the viewport. */
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border-soft);
  transition: box-shadow 0.2s ease;
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: var(--header-height);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-navy);
  flex-shrink: 0;
}

.brand__mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--color-navy);
  position: relative;
  flex-shrink: 0;
}

.brand__mark::after {
  content: "";
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  border: 2px solid var(--color-teal);
  border-bottom-color: transparent;
  border-right-color: transparent;
  transform: rotate(45deg);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
}

.site-nav__list a {
  padding-block: var(--space-2);
  border-bottom: 2px solid transparent;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.site-nav__list a:hover {
  color: var(--color-navy);
  border-bottom-color: var(--color-teal);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2);
  border-radius: var(--radius-sm);
}

.nav-toggle__box {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 22px;
}

.nav-toggle__bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-navy);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---- Hero ----------------------------------------------------------------- */

.hero {
  padding-block: var(--space-8) var(--space-9);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
}

.hero__copy h1 {
  font-size: clamp(2.1rem, 1.6rem + 2.4vw, 3.3rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--color-navy);
  line-height: 1.1;
}

.hero__lead {
  margin-top: var(--space-5);
  font-size: 1.15rem;
  color: var(--color-slate);
  max-width: 46ch;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.hero__note {
  margin-top: var(--space-5);
  font-size: 0.88rem;
  color: var(--color-slate-soft);
}

.hero__visual {
  display: flex;
  justify-content: center;
}

.hero__visual-frame {
  width: 100%;
  max-width: 420px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-6);
}

.hero__visual-frame img {
  width: 100%;
  height: auto;
}

/* ---- How it works ---------------------------------------------------------- */

.steps {
  margin-top: var(--space-7);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-7);
}

.step {
  position: relative;
}

.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--color-navy);
  color: #fff;
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: var(--space-4);
}

.step__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-navy);
}

.step__body {
  margin-top: var(--space-2);
  color: var(--color-slate);
  max-width: 40ch;
}

/* ---- Feature cards ----------------------------------------------------------- */

.cards {
  margin-top: var(--space-7);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-teal-soft);
  color: var(--color-teal);
  margin-bottom: var(--space-4);
}

.card__icon svg {
  width: 22px;
  height: 22px;
}

.card__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-navy);
}

.card__body {
  margin-top: var(--space-2);
  color: var(--color-slate);
  font-size: 0.95rem;
}

/* ---- For trainees / pills ---------------------------------------------------- */

.pills {
  margin-top: var(--space-6);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.pill {
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-navy);
  font-size: 0.9rem;
  font-weight: 600;
}

/* ---- CTA section --------------------------------------------------------------- */

.section--cta {
  /* Overrides .section's own padding-block -- this section's visible
     spacing comes entirely from .wrap's padding below, so the navy
     background forms a card rather than a full-bleed band. */
  padding-block: 0;
  background: var(--color-navy);
  color: #fff;
  border-radius: var(--radius-lg);
  max-width: calc(var(--max-width) + 2 * var(--space-5));
  margin-inline: auto;
  margin-block: var(--space-9);
}

.section--cta .wrap {
  padding-block: var(--space-8);
}

.cta {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.section--cta .section__title {
  color: #fff;
  max-width: 30ch;
}

.section--cta .section__lead {
  color: rgba(255, 255, 255, 0.8);
  max-width: 50ch;
}

.section--cta .btn-primary {
  margin-top: var(--space-6);
  background: #fff;
  color: var(--color-navy);
}

.section--cta .btn-primary:hover {
  background: var(--color-bg-alt);
}

.cta__note {
  margin-top: var(--space-4);
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.65);
}

/* ---- Footer ---------------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--color-border-soft);
  padding-block: var(--space-7) var(--space-6);
}

.site-footer__top {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border-soft);
}

.brand--footer {
  font-size: 1rem;
}

.footer-nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  font-size: 0.92rem;
  color: var(--color-slate);
}

.footer-nav__list a:hover {
  color: var(--color-navy);
}

.site-footer__disclaimer {
  margin-top: var(--space-6);
  max-width: 70ch;
  color: var(--color-slate-soft);
  font-size: 0.85rem;
  line-height: 1.6;
}

.site-footer__copyright {
  margin-top: var(--space-4);
  color: var(--color-slate-soft);
  font-size: 0.82rem;
}

/* ---- Motion -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---- Responsive ------------------------------------------------------------------------ */

@media (min-width: 720px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
  }
}

@media (min-width: 960px) {
  .hero__inner {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .hero__visual {
    justify-content: flex-end;
  }
}

@media (max-width: 879px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: fixed;
    inset: var(--header-height) 0 0 0;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    background: var(--color-bg);
    padding: var(--space-6) var(--space-5);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
    overflow-y: auto;
  }

  .site-nav.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
    visibility: visible;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    width: 100%;
  }

  .site-nav__list a {
    display: block;
    width: 100%;
    padding: var(--space-4) var(--space-2);
    font-size: 1.05rem;
    border-bottom: 1px solid var(--color-border-soft);
  }

  .site-nav__cta {
    margin-top: var(--space-5);
    width: 100%;
  }
}

@media (min-width: 880px) {
  .site-nav {
    background: transparent;
  }
}

/* =========================================================================
   Legal documents (privacy policy, terms) -- a narrower, readable prose
   column reusing the same site chrome/colors rather than a separate
   stylesheet.
   ========================================================================= */

.legal {
  padding-block: var(--space-8) var(--space-9);
}

.legal__wrap {
  max-width: 780px;
}

.legal__header {
  padding-bottom: var(--space-6);
  margin-bottom: var(--space-7);
  border-bottom: 1px solid var(--color-border-soft);
}

.legal__eyebrow {
  color: var(--color-teal);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.legal__header h1 {
  margin-top: var(--space-2);
  font-size: clamp(1.9rem, 1.6rem + 1.2vw, 2.4rem);
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: -0.01em;
}

.legal__updated {
  margin-top: var(--space-2);
  font-size: 0.88rem;
  color: var(--color-slate-soft);
}

.legal__intro {
  margin-top: var(--space-5);
  font-size: 1.05rem;
  color: var(--color-slate);
  max-width: 68ch;
}

.legal__toc {
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-6);
  margin-bottom: var(--space-8);
}

.legal__toc-title {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-navy);
  margin-bottom: var(--space-3);
}

.legal__toc ol {
  list-style: decimal;
  padding-left: 1.2em;
  display: grid;
  gap: var(--space-2);
  font-size: 0.92rem;
}

.legal__toc a {
  color: var(--color-slate);
}

.legal__toc a:hover {
  color: var(--color-navy);
  text-decoration: underline;
}

.legal section {
  margin-bottom: var(--space-8);
  scroll-margin-top: calc(var(--header-height) + var(--space-4));
}

.legal h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: -0.005em;
}

.legal h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-top: var(--space-6);
}

.legal p {
  margin-top: var(--space-4);
  color: var(--color-text);
  max-width: 72ch;
}

.legal ul {
  margin-top: var(--space-4);
  padding-left: 1.3em;
  display: grid;
  gap: var(--space-3);
  max-width: 72ch;
  list-style: disc;
}

.legal a {
  color: var(--color-teal);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.legal a:hover {
  color: var(--color-navy);
}

.legal__contact {
  margin-top: var(--space-4);
  padding: var(--space-5) var(--space-6);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  line-height: 1.8;
}

.legal__placeholder-note {
  color: var(--color-slate-soft);
  font-size: 0.85rem;
  font-style: italic;
}

/* =========================================================================
   Support page -- FAQ accordions (native <details>/<summary>, no JS) plus
   the .legal__contact card reused for the contact block.
   ========================================================================= */

.faq-group {
  margin-top: var(--space-7);
}

.faq-group:first-child {
  margin-top: 0;
}

.faq-group__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: var(--space-4);
}

.faq-list {
  display: grid;
  gap: var(--space-3);
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: var(--space-5) var(--space-6);
  font-weight: 600;
  color: var(--color-navy);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.3rem;
  line-height: 1;
  color: var(--color-teal);
  flex-shrink: 0;
  transition: transform 0.15s ease;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item__body {
  padding: 0 var(--space-6) var(--space-5);
  color: var(--color-slate);
  max-width: 68ch;
}

.faq-item__body p + p {
  margin-top: var(--space-3);
}