/* ==========================================================================
   Beastald — One-Page Scaffold
   Design tokens, mobile-first layout, no framework.
   Palette and rules locked per DESIGN_BRIEF.md / CTA_MAP.md / COPY_SPINE.md.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design tokens (CSS custom properties)
   -------------------------------------------------------------------------- */
:root {
  /* Color palette (exact hex values, do not approximate) */
  --color-navy: #071827;
  --color-ivory: #F3EFE7;
  --color-paper-white: #FCFAF6;
  --color-slate: #56616B;
  --color-teal: #439A9D;
  --color-copper: #C58A5C;

  /* Typography */
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo,
    Consolas, monospace;

  /* Type scale (mobile defaults; desktop overrides under media query) */
  --fs-body: 1rem;          /* 16px mobile */
  --fs-small: 0.8125rem;    /* 13px */
  --fs-eyebrow: 0.75rem;    /* 12px minimum labels */
  --fs-h4: 1.125rem;        /* 18px */
  --fs-h3: 1.375rem;        /* 22px */
  --fs-h2: 1.75rem;         /* 28px */
  --fs-h1: clamp(2.5rem, 8vw, 3.5rem); /* hero H1 mobile-first */

  --lh-body: 1.65;
  --lh-tight: 1.1;
  --lh-snug: 1.2;

  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  /* Spacing scale */
  --space-1: 0.5rem;   /* 8px  — small */
  --space-2: 1rem;     /* 16px — medium */
  --space-3: 1.5rem;   /* 24px */
  --space-4: 2rem;     /* 32px — large */
  --space-5: 3rem;     /* 48px */
  --space-6: 4rem;     /* 64px — xl */
  --space-7: 6rem;     /* 96px */

  /* Layout */
  --max-content: 72rem; /* 1152px readable measure */
  --gutter: 1.25rem;
  --radius-sm: 4px;
  --radius-md: 8px;
  --sticky-header-h: 3.5rem;
  --mobile-bar-h: 3.75rem;

  /* Motion */
  --t-fast: 140ms;
  --t-base: 200ms;
  --ease: cubic-bezier(0.2, 0, 0.2, 1);

  /* Focus outline */
  --focus-ring: 0 0 0 3px var(--color-teal);
  --focus-offset: 2px;
}

/* Desktop type scale overrides */
@media (min-width: 768px) {
  :root {
    --fs-body: 1.125rem;     /* 18px desktop */
    --fs-h2: 2.25rem;        /* 36px */
    --fs-h1: clamp(3rem, 6vw, 5.75rem);
    --gutter: 2rem;
  }
}

/* --------------------------------------------------------------------------
   2. Reset / base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: auto; /* smooth scroll only when JS-enabled and motion allowed */
}

body {
  margin: 0;
  background-color: var(--color-ivory);
  color: var(--color-slate);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  font-weight: var(--fw-regular);
  overflow-x: hidden; /* hard guard against horizontal scroll */
}

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

a {
  color: var(--color-navy);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 3px;
  transition: text-decoration-color var(--t-fast) var(--ease),
    color var(--t-fast) var(--ease);
}

a:hover {
  text-decoration-color: var(--color-teal);
  color: var(--color-navy);
}

a:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-sm);
}

button {
  font: inherit;
  cursor: pointer;
}

/* Visible keyboard focus on every interactive element */
:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-sm);
}

/* Section scroll offset (per CTA_MAP §2) */
section[id] {
  scroll-margin-top: calc(var(--sticky-header-h) + 1rem);
}

@media (max-width: 767px) {
  section[id] {
    scroll-margin-top: 1rem;
  }
}

/* --------------------------------------------------------------------------
   3. Layout primitives
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-content);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: var(--space-6);
}

@media (min-width: 768px) {
  .section {
    padding-block: var(--space-7);
  }
}

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

.section--paper {
  background-color: var(--color-paper-white);
}

.section--navy {
  background-color: var(--color-navy);
  color: var(--color-ivory);
}

.section--navy :is(h1, h2, h3, h4) {
  color: var(--color-ivory);
}

.section--navy a {
  color: var(--color-teal);
}

.section--navy a:hover {
  color: var(--color-paper-white);
}

/* --------------------------------------------------------------------------
   4. Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-sans);
  color: var(--color-navy);
  margin: 0 0 var(--space-2);
  line-height: var(--lh-tight);
  font-weight: var(--fw-bold);
}

h1 {
  font-size: var(--fs-h1);
  letter-spacing: -0.02em;
  line-height: 1.02;
}

h2 {
  font-size: var(--fs-h2);
  letter-spacing: -0.015em;
  line-height: var(--lh-snug);
  font-weight: var(--fw-semibold);
}

h3 {
  font-size: var(--fs-h3);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-snug);
}

h4 {
  font-size: var(--fs-h4);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-snug);
}

p {
  margin: 0 0 var(--space-2);
  max-width: 38rem;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-slate); /* FA-001 a11y: slate on Ivory/Paper-White = 5.52/6.07:1 (was 2.88/3.17:1 with teal). See audit/round_3c_fix.md. */
  margin-bottom: var(--space-2);
}

.section--navy .eyebrow {
  color: var(--color-paper-white);
}

.section-lead {
  font-size: var(--fs-h4);
  color: var(--color-slate);
  margin-bottom: var(--space-4);
  max-width: 42rem;
}

.section--navy .section-lead {
  color: var(--color-ivory);
}

/* --------------------------------------------------------------------------
   5. Header / brand
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background-color: var(--color-ivory);
  border-bottom: 1px solid rgba(7, 24, 39, 0.08);
  backdrop-filter: saturate(120%);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  min-height: var(--sticky-header-h);
  padding-block: var(--space-1);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--color-navy);
  font-weight: var(--fw-bold);
  font-size: 1.125rem;
  letter-spacing: -0.01em;
}

.brand img {
  display: block;
}

.brand .site-logo {
  width: 32px;
  height: 32px;
  flex: 0 0 auto;
}

.brand .site-wordmark {
  width: 120px;
  height: 24px;
  flex: 0 0 auto;
}

.brand:hover {
  color: var(--color-navy);
  text-decoration-color: transparent;
}

.site-nav {
  display: none;
}

@media (min-width: 768px) {
  .site-nav {
    display: flex;
    align-items: center;
    gap: var(--space-3);
  }
}

.site-nav a {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--color-navy);
  text-decoration: none;
  padding-block: 0.25rem;
  border-bottom: 2px solid transparent;
  transition: border-color var(--t-fast) var(--ease),
    color var(--t-fast) var(--ease);
}

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

.site-nav a[aria-current="true"] {
  border-bottom-color: var(--color-teal);
}

/* .site-header .header-cta (not .header-cta alone): bumps specificity to (0,2,0) so it beats .btn (0,1,0) cascade at mobile. Round 2b fix. */
.site-header .header-cta {
  display: none;
}

@media (min-width: 768px) {
  .site-header .header-cta {
    display: inline-flex;
    align-items: center;
    margin-left: var(--space-2);
  }
}

/* Mobile menu toggle */
.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid rgba(7, 24, 39, 0.15);
  border-radius: var(--radius-sm);
  color: var(--color-navy);
}

@media (min-width: 768px) {
  .menu-toggle {
    display: none;
  }
}

.mobile-menu {
  display: none;
  border-top: 1px solid rgba(7, 24, 39, 0.08);
  background-color: var(--color-paper-white);
  padding: var(--space-2) var(--gutter);
}

.mobile-menu[data-open="true"] {
  display: block;
}

.mobile-menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.mobile-menu a {
  display: block;
  padding: var(--space-1) 0;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  color: var(--color-navy);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   6. Hero
   -------------------------------------------------------------------------- */
.hero {
  padding-block: var(--space-5) var(--space-6);
}

@media (min-width: 768px) {
  .hero {
    padding-block: var(--space-7) var(--space-7);
  }
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  align-items: start;
}

@media (min-width: 1280px) {
  .hero__inner {
    grid-template-columns: 1.1fr 1fr;
    gap: var(--space-6);
    align-items: center;
  }
}

.hero__copy h1 {
  margin-bottom: var(--space-2);
}

.hero__sub {
  font-size: var(--fs-h4);
  color: var(--color-slate);
  margin-bottom: var(--space-3);
  max-width: 36rem;
}

.hero__support {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  color: var(--color-slate);
  margin-top: var(--space-3);
}

.hero__visual {
  background-color: var(--color-paper-white);
  border: 1px solid rgba(7, 24, 39, 0.06);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__visual svg {
  width: 100%;
  height: auto;
  max-width: 480px;
}

/* --------------------------------------------------------------------------
   7. Buttons
   -------------------------------------------------------------------------- */
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  font-weight: var(--fw-medium);
  line-height: 1.2;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--t-fast) var(--ease),
    background-color var(--t-fast) var(--ease),
    color var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease);
}

.btn--primary {
  background-color: var(--color-navy);
  color: var(--color-ivory);
  border-color: var(--color-navy);
}

.btn--primary:hover {
  background-color: #0c2438; /* one-step navy lift, still in same family */
  color: var(--color-ivory);
  text-decoration: none;
  transform: translateY(-1px);
}

.btn--primary:active {
  transform: translateY(0);
  background-color: #04101a;
}

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

.btn--secondary:hover {
  background-color: var(--color-paper-white);
  color: var(--color-navy);
  text-decoration: none;
  transform: translateY(-1px);
}

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

.section--navy .btn--primary {
  background-color: var(--color-teal);
  color: var(--color-navy);
  border-color: var(--color-teal);
}

.section--navy .btn--primary:hover {
  background-color: #5cb0b3;
  color: var(--color-navy);
}

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

.section--navy .btn--secondary:hover {
  background-color: rgba(243, 239, 231, 0.08);
  color: var(--color-ivory);
}

/* a11y: .contact-card sits inside .section--navy but is itself paper-white. The rule above sets ivory text on transparent bg, which inside the card becomes ivory-on-paper-white ≈ 1.05:1 FAIL. Override so the "Call Edgar directly" link inside the card uses navy. See audit/round_3c_fix.md. */
.contact-card .btn--secondary {
  color: var(--color-navy);
  border-color: var(--color-navy);
}

.contact-card .btn--secondary:hover {
  color: var(--color-navy);
  background-color: rgba(7, 24, 39, 0.04);
  border-color: var(--color-navy);
}

.inline-cta {
  margin-top: var(--space-4);
}

/* --------------------------------------------------------------------------
   8. Capability / step / application / differentiator lists
   -------------------------------------------------------------------------- */
.modules {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

@media (min-width: 768px) {
  .modules {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }
}

@media (min-width: 1280px) {
  .modules {
    grid-template-columns: repeat(3, 1fr);
  }
}

.module {
  background-color: var(--color-paper-white);
  border: 1px solid rgba(7, 24, 39, 0.06);
  border-radius: var(--radius-md);
  padding: var(--space-3);
}

.module__index {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-medium);
  letter-spacing: 0.08em;
  color: var(--color-slate); /* FA-001 a11y: slate on Paper-White = 6.07:1 (was 3.17:1 with teal). See audit/round_3c_fix.md. */
  margin-bottom: var(--space-1);
}

.module__title {
  font-size: var(--fs-h4);
  font-weight: var(--fw-semibold);
  color: var(--color-navy);
  margin-bottom: var(--space-1);
  line-height: var(--lh-snug);
}

.module__body {
  margin: 0;
  color: var(--color-slate);
  font-size: 1rem;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   9. Process (numbered steps)
   -------------------------------------------------------------------------- */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  counter-reset: step;
}

@media (min-width: 768px) {
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1280px) {
  .steps {
    grid-template-columns: repeat(4, 1fr);
  }
}

.step {
  background-color: var(--color-paper-white);
  border: 1px solid rgba(7, 24, 39, 0.06);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  position: relative;
}

.step__index {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-medium);
  letter-spacing: 0.08em;
  color: var(--color-slate); /* FA-001 a11y (same root cause as .module__index, missed by brief scope): slate on Paper-White = 6.07:1 (was 3.17:1 with teal). See audit/round_3c_fix.md. */
  margin-bottom: var(--space-1);
}

.step__title {
  font-size: var(--fs-h4);
  font-weight: var(--fw-semibold);
  color: var(--color-navy);
  margin-bottom: var(--space-1);
}

.step__body {
  margin: 0;
  color: var(--color-slate);
  font-size: 1rem;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   10. Why-Beastald: differentiators + trust lines
   -------------------------------------------------------------------------- */
.differentiators {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

@media (min-width: 768px) {
  .differentiators {
    grid-template-columns: repeat(3, 1fr);
  }
}

.differentiator {
  border-left: 2px solid var(--color-teal);
  padding-left: var(--space-2);
}

.differentiator__title {
  font-size: var(--fs-h4);
  font-weight: var(--fw-semibold);
  color: var(--color-navy);
  margin-bottom: var(--space-1);
}

.differentiator__body {
  margin: 0;
  color: var(--color-slate);
  line-height: 1.6;
}

.trust-lines {
  list-style: none;
  margin: 0 0 var(--space-3);
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
}

@media (min-width: 768px) {
  .trust-lines {
    grid-template-columns: repeat(3, 1fr);
  }
}

.trust-line {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  line-height: 1.5;
  color: var(--color-slate);
}

.trust-line::before {
  content: "";
  flex: 0 0 auto;
  width: 0.5rem;
  height: 0.5rem;
  margin-top: 0.55rem;
  border-radius: 50%;
  background-color: var(--color-copper);
}

.trust-line--no-dot::before {
  display: none;
}

/* --------------------------------------------------------------------------
   11. Contact block
   -------------------------------------------------------------------------- */
.contact-card {
  background-color: var(--color-paper-white);
  border: 1px solid rgba(7, 24, 39, 0.06);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  color: var(--color-navy); /* a11y: contact-card is paper-white inside a navy section; override inherited ivory from .section--navy so text inside card reads. See audit/round_3c_fix.md. */
}

@media (min-width: 768px) {
  .contact-card {
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-4);
  }
}

.contact-card__details {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.contact-card__details p {
  margin: 0;
}

.contact-card__email,
.contact-card__phone {
  font-family: var(--font-mono);
  font-size: var(--fs-h4);
  color: var(--color-navy);
  text-decoration: none;
  word-break: break-word;
}

/* FA-001 a11y: .section--navy a (specificity 0,1,1) was beating .contact-card__email (0,1,0) and forcing teal text on the paper-white contact card (3.17:1 FAIL). Bump specificity so the email renders navy (17.23:1 PASS). See audit/round_3c_fix.md. */
.section--navy .contact-card__email {
  color: var(--color-navy);
}

.contact-card__email:hover,
.contact-card__phone:hover {
  text-decoration: underline;
  text-decoration-color: var(--color-teal);
}

.contact-card__support {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  color: var(--color-ivory); /* a11y: this element sits in the navy contact section (bg #071827), not inside .contact-card. Slate on navy ≈ 0.93:1 FAIL; ivory on navy = 15.66:1 PASS. See audit/round_3c_fix.md. */
}

.placeholder-token {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  color: var(--color-slate);
  background-color: rgba(86, 97, 107, 0.08);
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   12. Sticky mobile CTA bar
   -------------------------------------------------------------------------- */
.mobile-sticky-bar {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  background-color: var(--color-navy);
  padding: 0.5rem var(--gutter) calc(0.5rem + env(safe-area-inset-bottom, 0));
  border-top: 1px solid rgba(243, 239, 231, 0.12);
  transform: translateY(0);
  transition: transform var(--t-base) var(--ease);
}

.mobile-sticky-bar[data-visible="false"] {
  transform: translateY(110%);
}

.mobile-sticky-bar .btn {
  width: 100%;
  background-color: var(--color-teal);
  color: var(--color-navy);
  border-color: var(--color-teal);
}

.mobile-sticky-bar .btn:hover {
  background-color: #5cb0b3;
  color: var(--color-navy);
  text-decoration: none;
}

/* Only show sticky bar on viewports small enough to need it */
@media (max-width: 767px) {
  body.has-sticky-bar {
    padding-bottom: calc(var(--mobile-bar-h) + env(safe-area-inset-bottom, 0));
  }
}

/* --------------------------------------------------------------------------
   13. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  padding-block: var(--space-4);
  background-color: var(--color-ivory);
  border-top: 1px solid rgba(7, 24, 39, 0.06);
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  color: var(--color-slate);
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

@media (min-width: 768px) {
  .site-footer__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.site-footer a {
  color: var(--color-slate);
  text-decoration: underline;
  text-decoration-color: transparent;
}

.site-footer a:hover {
  text-decoration-color: var(--color-teal);
  color: var(--color-navy);
}

/* --------------------------------------------------------------------------
   14. Reduced motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .mobile-sticky-bar {
    transition: none;
  }
}

/* Smooth scroll only when explicitly enabled by JS and motion is allowed */
html.js-smooth-scroll {
  scroll-behavior: smooth;
}

/* --------------------------------------------------------------------------
   15. Utility
   -------------------------------------------------------------------------- */
.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;
}