/* ============================================================
   BIRA LANDING — DESIGN SYSTEM
   Aesthetic: "Холодный профессионал" — dry engineer, restrained,
   numbers-first, zero marketing gloss.
   ============================================================ */


/* ============================================================
   TOKENS — CSS Custom Properties
   ============================================================ */

:root {

  /* --- Color Palette ---------------------------------------- */

  /* Background layers */
  --color-bg:           #0b0b0b;   /* page canvas — near-black     */
  --color-surface:      #111111;   /* card / section surface       */
  --color-surface-alt:  #161616;   /* slightly lifted surface      */

  /* Borders */
  --color-border:       #242424;   /* default hairline             */
  --color-border-muted: #1a1a1a;   /* very subtle separator        */

  /* Text */
  --color-text:         #dedede;   /* primary body text            */
  --color-text-muted:   #707070;   /* secondary / metadata         */
  --color-text-faint:   #3c3c3c;   /* decorative, captions, labels */

  /* Accent — cold industrial amber */
  /* "this number matters" — terminal cursor color */
  --color-accent:       #c9a84c;   /* primary accent               */
  --color-accent-dim:   #8a6e2f;   /* accent muted (hover bg etc.) */
  --color-accent-faint: #2a2218;   /* accent tint background       */
  --color-accent-bright: #e0bc60;  /* accent bright (button hover) */
  --color-accent-glow: rgba(201, 168, 76, 0.08);  /* accent @8% — chip hover shadow */

  /* Status */
  --color-positive:     #4d8a5a;   /* success / metric up          */
  --color-negative:     #8a4d4d;   /* error / metric down          */

  /* --- Typography ------------------------------------------- */

  /* MONOSPACE — numbers and code are the hero.
     System stack: Berkeley Mono → JetBrains → SF Mono → Menlo → Consolas
     Zero CDN dependency, works offline, works in Russia.           */
  --font-mono:
    "Berkeley Mono",
    "JetBrains Mono",
    "SF Mono",
    ui-monospace,
    Menlo,
    Consolas,
    "Liberation Mono",
    monospace;

  /* SANS — body text and headings.
     System sans that is NOT Inter: prefers Helvetica Neue or the OS
     native sans. Clean, neutral, doesn't compete with numbers.      */
  --font-sans:
    "Helvetica Neue",
    "Helvetica",
    "Arial Nova",
    Arial,
    "Nimbus Sans",
    sans-serif;

  /* Scale — modular, tighter than default browser */
  --text-xs:   0.6875rem;   /* 11px — labels, captions   */
  --text-sm:   0.8125rem;   /* 13px — metadata, footnotes */
  --text-base: 0.9375rem;   /* 15px — body copy          */
  --text-md:   1.0625rem;   /* 17px — lead / intro       */
  --text-lg:   1.25rem;     /* 20px — h3                 */
  --text-xl:   1.5625rem;   /* 25px — h2                 */
  --text-2xl:  2rem;        /* 32px — h1                 */
  --text-3xl:  2.75rem;     /* 44px — hero number        */
  --text-4xl:  4rem;        /* 64px — stat hero          */
  --text-5xl:  6rem;        /* 96px — display number     */

  /* Line heights */
  --leading-tight:  1.2;
  --leading-snug:   1.35;
  --leading-normal: 1.6;
  --leading-loose:  1.8;

  /* Letter spacing */
  --tracking-tight:  -0.03em;
  --tracking-normal:  0em;
  --tracking-wide:    0.06em;
  --tracking-widest:  0.12em;

  /* Font weights */
  --weight-normal:  400;
  --weight-medium:  500;
  --weight-bold:    700;

  /* --- Spacing Scale ---------------------------------------- */
  /* 4px base unit, named semantically */
  --space-1:   0.25rem;   /*  4px */
  --space-2:   0.5rem;    /*  8px */
  --space-3:   0.75rem;   /* 12px */
  --space-4:   1rem;      /* 16px */
  --space-5:   1.25rem;   /* 20px */
  --space-6:   1.5rem;    /* 24px */
  --space-8:   2rem;      /* 32px */
  --space-10:  2.5rem;    /* 40px */
  --space-12:  3rem;      /* 48px */
  --space-16:  4rem;      /* 64px */
  --space-20:  5rem;      /* 80px */
  --space-24:  6rem;      /* 96px */
  --space-32:  8rem;      /* 128px */

  /* --- Layout ----------------------------------------------- */
  --container-max:   860px;    /* single-column reading width    */
  --container-wide:  1100px;   /* for full-bleed elements        */
  --container-px:    var(--space-6);  /* horizontal page padding */

  /* --- Borders ---------------------------------------------- */
  --radius-sm:  2px;
  --radius-md:  4px;
  --radius-lg:  8px;
  --radius-pill: 999px;

  /* --- Transitions ------------------------------------------ */
  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast:   120ms;
  --duration-base:   200ms;
  --duration-slow:   350ms;
}


/* ============================================================
   RESET — minimal, opinionated
   ============================================================ */

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

html {
  /* Prevent iOS font-size inflation on rotation */
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  /* Subtle horizontal scroll guard */
  overflow-x: hidden;
}

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

button, input, textarea, select {
  font: inherit;
}

/* Remove default list styles when used as navigation */
ul[role="list"],
ol[role="list"] {
  list-style: none;
}


/* ============================================================
   BASE — Body & Global
   ============================================================ */

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--weight-normal);
  line-height: var(--leading-normal);

  /* Crisp rendering — no blurry AA */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;

  /* Prevent orphan words on narrow viewports */
  overflow-wrap: break-word;
  word-break: break-word;
  hyphens: none;
}

/* Selection */
::selection {
  background-color: var(--color-accent-dim);
  color: var(--color-text);
}

/* Focus ring — visible, not garish */
:focus-visible {
  outline: 1px solid var(--color-accent);
  outline-offset: 3px;
}
:focus:not(:focus-visible) {
  outline: none;
}

/* Scrollbar — minimal, matches theme */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg);
}
::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-pill);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-faint);
}


/* ============================================================
   LAYOUT — Container & Wrappers
   ============================================================ */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

.container--wide {
  max-width: var(--container-wide);
}

/* Section vertical rhythm */
.section {
  padding-block: var(--space-16);
  border-top: 1px solid var(--color-border-muted);
}

.section:first-of-type {
  border-top: none;
}

/* Increased section spacing on larger screens */
@media (min-width: 640px) {
  .section {
    padding-block: var(--space-20);
  }
}

@media (min-width: 960px) {
  .section {
    padding-block: var(--space-24);
  }
}


/* ============================================================
   TYPOGRAPHY — Headings
   ============================================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text);
}

h1 {
  font-size: var(--text-2xl);
  letter-spacing: -0.04em;
}

h2 {
  font-size: var(--text-xl);
}

h3 {
  font-size: var(--text-lg);
  letter-spacing: var(--tracking-normal);
}

h4 {
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Scale up h1 on wider screens */
@media (min-width: 640px) {
  h1 {
    font-size: var(--text-3xl);
  }
}

@media (min-width: 960px) {
  h1 {
    font-size: calc(var(--text-4xl) * 0.9);  /* ~58px */
  }
}


/* ============================================================
   TYPOGRAPHY — Body & Inline
   ============================================================ */

p {
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  max-width: 62ch;  /* optimal reading line length */
}

p + p {
  margin-top: var(--space-4);
}

/* Lead paragraph — slightly larger */
.lead {
  font-size: var(--text-md);
  line-height: var(--leading-snug);
  color: var(--color-text-muted);
  max-width: 56ch;
}

/* Caption / metadata */
.meta {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

/* Inline code */
code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  color: var(--color-accent);
  background-color: var(--color-accent-faint);
  padding: 0.1em 0.35em;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

/* Block code */
pre {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
  overflow-x: auto;
  line-height: var(--leading-loose);
}

pre code {
  color: var(--color-text);
  background: none;
  padding: 0;
  border-radius: 0;
  font-size: inherit;
  white-space: pre;
}

strong {
  font-weight: var(--weight-bold);
  color: var(--color-text);
}

em {
  font-style: italic;
  color: var(--color-text-muted);
}

/* Horizontal rule — hairline */
hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin-block: var(--space-8);
}


/* ============================================================
   LINKS
   ============================================================ */

a {
  color: var(--color-text);
  text-decoration: underline;
  text-decoration-color: var(--color-border);
  text-underline-offset: 3px;
  transition:
    color var(--duration-fast) var(--ease-out),
    text-decoration-color var(--duration-fast) var(--ease-out);
}

a:hover {
  color: var(--color-accent);
  text-decoration-color: var(--color-accent-dim);
}

/* Nav / bare link — no underline by default */
.link-bare {
  text-decoration: none;
}

.link-bare:hover {
  text-decoration: underline;
  text-decoration-color: var(--color-accent-dim);
}

/* Accent link */
.link-accent {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid var(--color-accent-dim);
}

.link-accent:hover {
  color: var(--color-text);
  border-bottom-color: var(--color-text-faint);
}


/* ============================================================
   BUTTONS — CTA
   ============================================================ */

/* Shared button base */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);

  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;

  /* Min tap target 44px */
  min-height: 44px;
  padding-inline: var(--space-6);
  padding-block: var(--space-3);

  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  user-select: none;

  transition:
    background-color var(--duration-base) var(--ease-out),
    color var(--duration-base) var(--ease-out),
    border-color var(--duration-base) var(--ease-out);
}

.btn:focus-visible {
  outline: 1px solid var(--color-accent);
  outline-offset: 3px;
}

/* Primary CTA — accent fill */
.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background-color: var(--color-accent-bright);     /* brighter on hover */
  border-color: var(--color-accent-bright);
  color: var(--color-bg);
  text-decoration: none;
}

.btn-primary:active {
  background-color: var(--color-accent-dim);
  border-color: var(--color-accent-dim);
}

/* Secondary CTA — ghost / outlined */
.btn-secondary {
  background-color: transparent;
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  color: var(--color-text);
  border-color: var(--color-text-faint);
  background-color: var(--color-surface);
  text-decoration: none;
}

.btn-secondary:active {
  background-color: var(--color-surface-alt);
}

/* Button group — inline horizontal pair */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}


/* ============================================================
   CARD / SURFACE
   ============================================================ */

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

/* Subtle hover lift — only on interactive cards */
.card-interactive {
  cursor: pointer;
  transition:
    border-color var(--duration-base) var(--ease-out),
    background-color var(--duration-base) var(--ease-out);
}

.card-interactive:hover {
  border-color: var(--color-text-faint);
  background-color: var(--color-surface-alt);
}

/* Accent card — left border stripe */
.card-accent {
  border-left: 2px solid var(--color-accent);
}


/* ============================================================
   NUMBERS — the page hero
   Numbers are privileged: monospace, confident, large.
   ============================================================ */

/* Generic stat number */
.stat-number {
  font-family: var(--font-mono);
  font-weight: var(--weight-bold);
  line-height: 1;
  letter-spacing: var(--tracking-tight);
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
  transition: color var(--duration-base) var(--ease-out);
}

/* Sizes */
.stat-number--lg   { font-size: var(--text-3xl); }
.stat-number--xl   { font-size: var(--text-4xl); }
.stat-number--hero { font-size: var(--text-5xl); }

/* Scale hero number up on wider screens */
@media (min-width: 640px) {
  .stat-number--hero { font-size: calc(var(--text-5xl) * 1.15); }
}

/* Accent-tinted number */
.stat-number--accent {
  color: var(--color-accent);
}

/* Stat label — sits below the number */
.stat-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

/* Stat unit — superscript modifier */
.stat-unit {
  font-family: var(--font-mono);
  font-size: 0.4em;
  font-weight: var(--weight-normal);
  letter-spacing: 0;
  vertical-align: super;
  color: var(--color-text-muted);
  margin-left: 0.1em;
}


/* ============================================================
   LABEL / TAG — small metadata chips
   ============================================================ */

.label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.2em 0.5em;
  white-space: nowrap;
}

.label--accent {
  color: var(--color-accent);
  background-color: var(--color-accent-faint);
  border-color: var(--color-accent-dim);
}


/* ============================================================
   DIVIDER — with optional label
   ============================================================ */

.divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--color-text-faint);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  margin-block: var(--space-8);
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background-color: var(--color-border);
}

.divider:empty::after {
  display: none;
}


/* ============================================================
   UTILITY CLASSES — spacing, text, layout
   ============================================================ */

/* Text color utilities */
.text-muted  { color: var(--color-text-muted); }
.text-faint  { color: var(--color-text-faint); }
.text-accent { color: var(--color-accent); }

/* Font family utilities */
.font-mono { font-family: var(--font-mono); }
.font-sans { font-family: var(--font-sans); }

/* Spacing utilities */
.mt-4  { margin-top: var(--space-4); }
.mt-6  { margin-top: var(--space-6); }
.mt-8  { margin-top: var(--space-8); }
.mt-10 { margin-top: var(--space-10); }
.mt-12 { margin-top: var(--space-12); }

.mb-4  { margin-bottom: var(--space-4); }
.mb-6  { margin-bottom: var(--space-6); }
.mb-8  { margin-bottom: var(--space-8); }

/* Layout utilities */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.flex       { display: flex; }
.flex-col   { flex-direction: column; }
.items-center { align-items: center; }
.gap-2      { gap: var(--space-2); }
.gap-4      { gap: var(--space-4); }
.gap-6      { gap: var(--space-6); }
.gap-8      { gap: var(--space-8); }


/* ============================================================
   SECTION: HERO
   ============================================================ */

.section--hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  border-top: none;
  padding-block: var(--space-20);
}

/* On short screens don't force full vh, allow natural height */
@media (max-height: 600px) {
  .section--hero {
    min-height: unset;
    padding-block: var(--space-16);
  }
}

.hero-inner {
  max-width: 56ch;
}

.hero-numbers {
  border-left: 2px solid var(--color-accent);
  padding-left: var(--space-5);
}

.hero-numbers-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-4);
  row-gap: var(--space-3);
}

.hero-numbers-label {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.hero-numbers-sep {
  font-size: var(--text-md);
  line-height: 1;
  color: var(--color-text-faint);
}

.hero-numbers-tag {
  margin-left: var(--space-2);
}

/* Grow h1 in hero on big screens */
@media (min-width: 960px) {
  .hero-inner {
    max-width: 64ch;
  }
}


/* ============================================================
   SECTION: LIVE BOTS
   ============================================================ */

.bots-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .bots-grid {
    grid-template-columns: 1fr 1fr;
  }
}


/* ============================================================
   SECTION: CASES
   ============================================================ */

.cases-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .cases-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.case-platform {
  /* already using .label styles */
}

/* Metric line — the hero of each card */
.case-metric {
  color: var(--color-accent);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-snug);
  max-width: none;         /* override p max-width: 62ch */
  border-top: 1px solid var(--color-border-muted);
  padding-top: var(--space-4);
}


/* ============================================================
   SECTION: ARCHITECTURE DIAGRAMS (.arch)
   ============================================================ */

/* Collapsible arch block nested inside case card */
.case-arch {
  margin-top: var(--space-6);
  border-top: 1px solid var(--color-border-muted);
  padding-top: var(--space-4);
}

.case-arch summary {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-muted);
  cursor: pointer;
  user-select: none;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: color var(--duration-base) var(--ease-out);
}

.case-arch summary::-webkit-details-marker {
  display: none;
}

.case-arch summary::before {
  content: '▸';
  font-size: var(--text-xs);
  transition: transform var(--duration-base) var(--ease-out);
  display: inline-block;
}

.case-arch[open] summary::before {
  transform: rotate(90deg);
}

.case-arch summary:hover {
  color: var(--color-accent);
}

.case-arch .arch-body {
  margin-top: var(--space-4);
}

/* Diagram body: stack of tiers */
.arch-body {
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* Single tier row */
.arch-tier {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding-block: var(--space-3);
}

/* Hover: brighten tier label */
.arch-tier:hover .arch-tier-label {
  color: var(--color-text-muted);
}

/* Tier label — left column, fixed width on desktop */
.arch-tier-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  flex-shrink: 0;
  width: 7.5rem;
  padding-top: 0.3em;  /* align with first chip name baseline */
  transition: color var(--duration-fast) var(--ease-out);
}

/* Chips container */
.arch-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  flex: 1;
}

/* Single node chip */
.arch-chip {
  display: flex;
  flex-direction: column;
  gap: 0.15em;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  cursor: default;
  transition:
    border-color var(--duration-base) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out),
    transform var(--duration-base) var(--ease-out);
}

.arch-chip:hover {
  border-color: var(--color-accent-dim);
  box-shadow: 0 0 0 1px var(--color-accent-dim), 0 2px 8px var(--color-accent-glow);
  transform: translateY(-1px);
}

@media (prefers-reduced-motion: reduce) {
  .arch-chip {
    transition: border-color var(--duration-fast) var(--ease-out),
                box-shadow var(--duration-fast) var(--ease-out);
  }
  .arch-chip:hover {
    transform: none;
  }
}

.arch-chip-name {
  font-weight: var(--weight-bold);
  color: var(--color-text);
  white-space: nowrap;
}

.arch-chip-sub {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
}

/* Platform / role chips — first tier accent */
.arch-chip--platform {
  background-color: var(--color-surface-alt);
  border-color: var(--color-border);
}

.arch-chip--platform .arch-chip-name {
  color: var(--color-text);
}

/* AI tier chips — amber left-border accent */
.arch-chip--ai {
  border-left: 2px solid var(--color-accent-dim);
}

.arch-chip--ai .arch-chip-name {
  color: var(--color-accent);
}

/* Connector between tiers */
.arch-connector {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  padding-left: calc(7.5rem + var(--space-4));  /* align under chips */
  line-height: 1;
  user-select: none;
  padding-block: var(--space-1);
}

/* Mobile (<640px): tier-label stacks above chips */
@media (max-width: 639px) {
  .arch-tier {
    flex-direction: column;
    gap: var(--space-2);
  }

  .arch-tier-label {
    width: auto;
    padding-top: 0;
  }

  .arch-connector {
    padding-left: 0;
    text-align: left;
  }

  .arch-chip-name,
  .arch-chip-sub {
    white-space: normal;
  }
}


/* ============================================================
   SECTION: CAPABILITIES
   ============================================================ */

.caps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

/* Tighten on tablet — 3 equal cols can be narrow */
@media (min-width: 640px) and (max-width: 899px) {
  .caps-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 900px) {
  .caps-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.stack-line p {
  font-size: var(--text-sm);
  line-height: var(--leading-loose);
  max-width: none;
}


/* ============================================================
   SECTION: TRUST
   ============================================================ */

.trust-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.trust-item {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: var(--space-6);
  align-items: start;
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border-muted);
}

.trust-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.trust-marker {
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
  padding-top: 0.2em;  /* align with first text line */
}


/* ============================================================
   SECTION: WHAT I DON'T DO
   ============================================================ */

.nope-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.nope-item {
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
  font-size: var(--text-base);
  color: var(--color-text-muted);
}

.nope-marker {
  font-size: var(--text-sm);
  flex-shrink: 0;
  width: 1.2ch;
}


/* ============================================================
   SECTION: CONTACT
   ============================================================ */

.section--contact {
  padding-bottom: var(--space-24);
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

@media (min-width: 640px) {
  .contact-links {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--space-16);
  }
}

.contact-tg,
.contact-gh {
  display: flex;
  flex-direction: column;
}

.contact-tg:hover .stat-number,
.contact-gh:hover .contact-gh-text {
  color: var(--color-text);
}

.contact-gh-text {
  font-size: var(--text-md);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
  line-height: 1;
  transition: color var(--duration-base) var(--ease-out);
}


/* ============================================================
   RESPONSIVE PASS — mobile-first overrides
   ============================================================ */

/* 375px: tighten numbers line, prevent text overflow */
@media (max-width: 479px) {
  .hero-numbers-strip {
    gap: var(--space-2) var(--space-3);
  }

  .hero-numbers-sep {
    display: none;
  }

  .stat-number--lg {
    font-size: var(--text-xl);
  }

  .case-metric {
    font-size: var(--text-xs);
  }
}

/* Ensure buttons always meet 44px touch target */
@media (max-width: 639px) {
  .btn {
    min-height: 48px;
  }
}