/* ============================================
   Real Zero — Main brand site
   Typography: Space Grotesk (headlines) + Inter (body)
   Colors: Carbon Black / Soft White / Steel Gray / Electric Ice Blue
   Orange belongs to Orangetheory — not used in Real Zero core brand.
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');


/* ============================================
   TOKENS
   ============================================ */

:root {
  --carbon:     #111318;
  --carbon-2:   #1A1C22;
  --soft-white: #F7F7F5;
  --steel:      #8D8D8D;
  --ice:        #5DA9E9;

  --text:       #F7F7F5;
  --text-dim:   rgba(247, 247, 245, 0.68);
  --text-mute:  rgba(247, 247, 245, 0.42);
  --hairline:   rgba(247, 247, 245, 0.10);
  --hairline-strong: rgba(247, 247, 245, 0.20);

  --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;

  --radius:    10px;
  --radius-lg: 16px;
  --ease:      cubic-bezier(0.16, 1, 0.3, 1);
  --speed:     .3s;

  --container:        min(1200px, 100% - 48px);
  --container-narrow: min(760px, 100% - 48px);
  --container-wide:   min(1440px, 100% - 48px);

  --nav-h: 72px;
}


/* ============================================
   RESET
   ============================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.55;
  background-color: var(--carbon);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

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

button {
  font: inherit;
  letter-spacing: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

a { color: inherit; text-decoration: none; transition: color var(--speed) var(--ease); }
a:hover { color: var(--ice); }

ul, ol { list-style: none; }

::selection { background: var(--ice); color: var(--carbon); }


/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--text);
}

.h1 { font-size: clamp(42px, 7vw, 80px); line-height: 0.98; letter-spacing: -0.025em; font-weight: 700; }
.h2 { font-size: clamp(32px, 4.5vw, 52px); letter-spacing: -0.02em; font-weight: 600; }
.h3 { font-size: clamp(22px, 2.5vw, 30px); letter-spacing: -0.015em; font-weight: 600; }
.h4 { font-size: clamp(18px, 1.8vw, 22px); letter-spacing: -0.01em; font-weight: 600; }

.eyebrow {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ice);
}

.lead {
  font-size: clamp(17px, 1.4vw, 20px);
  line-height: 1.5;
  font-weight: 400;
  color: var(--text-dim);
  max-width: 62ch;
}

.mono {
  font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--steel);
}


/* ============================================
   LAYOUT
   ============================================ */

.container        { width: var(--container);        margin-inline: auto; }
.container-narrow { width: var(--container-narrow); margin-inline: auto; }
.container-wide   { width: var(--container-wide);   margin-inline: auto; }

.section        { padding-block: clamp(72px, 10vw, 140px); }
.section-tight  { padding-block: clamp(48px, 6vw, 80px); }

.grid { display: grid; gap: clamp(20px, 2.5vw, 32px); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.rule { height: 1px; background: var(--hairline); border: 0; margin: 0; }


/* ============================================
   NAV
   ============================================ */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(17, 19, 24, 0.78);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--hairline);
}

.nav-inner {
  width: var(--container);
  margin-inline: auto;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  color: var(--text);
}
.nav-brand:hover { color: var(--text); }

.nav-brand-logo {
  display: block;
  height: 44px;
  width: 44px;
  border-radius: 8px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dim);
}
.nav-links a:hover,
.nav-links a[aria-current="page"] { color: var(--text); }

.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-cta {
  font-size: 14px;
  font-weight: 500;
  padding: 9px 18px;
  border-radius: 999px;
  background: var(--soft-white);
  color: var(--carbon);
  letter-spacing: -0.005em;
}
.nav-cta:hover { color: var(--carbon); background: #fff; }

.lang-switch {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  padding: 7px 10px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
}
.lang-switch:hover { color: var(--text); border-color: var(--hairline-strong); }

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
}
.nav-toggle svg { width: 22px; height: 22px; color: var(--text); }

@media (max-width: 880px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav.open .nav-links {
    display: flex;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 24px 20px;
    background: var(--carbon);
    border-bottom: 1px solid var(--hairline);
  }
  .nav.open .nav-links a {
    width: 100%;
    padding: 16px 0;
    font-size: 17px;
    border-bottom: 1px solid var(--hairline);
  }
  .nav.open .nav-links a:last-child { border-bottom: 0; }
}


/* ============================================
   HERO
   ============================================ */

.hero {
  padding-block: clamp(80px, 11vw, 160px) clamp(56px, 7vw, 112px);
  position: relative;
  overflow: hidden;
}

.hero::before {
  /* subtle architectural grid backdrop */
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--hairline) 1px, transparent 1px),
    linear-gradient(90deg, var(--hairline) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: center top;
  mask-image: radial-gradient(ellipse at top, rgba(0,0,0,.35), transparent 60%);
  -webkit-mask-image: radial-gradient(ellipse at top, rgba(0,0,0,.35), transparent 60%);
  pointer-events: none;
  opacity: .6;
}
.hero > .container { position: relative; z-index: 1; }

.hero h1 {
  font-size: clamp(44px, 7.5vw, 92px);
  line-height: 0.98;
  letter-spacing: -0.03em;
  font-weight: 700;
  max-width: 16ch;
}

.hero .lead { margin-top: 22px; max-width: 52ch; }

.hero-actions {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}


/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: -0.005em;
  padding: 14px 24px;
  border-radius: 999px;
  transition: transform .15s, opacity .15s, background-color .2s, color .2s, border-color .2s;
  white-space: nowrap;
}

.btn-primary { background: var(--soft-white); color: var(--carbon); }
.btn-primary:hover { background: #fff; color: var(--carbon); }

.btn-accent { background: var(--ice); color: var(--carbon); }
.btn-accent:hover { background: var(--ice); color: var(--carbon); opacity: 0.92; }

.btn-ghost {
  color: var(--text);
  border: 1px solid var(--hairline-strong);
  background: transparent;
}
.btn-ghost:hover { color: var(--text); border-color: var(--text); background: rgba(247,247,245,0.04); }

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


/* ============================================
   STATUS CHIP (soft launch, coming soon)
   ============================================ */

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid var(--hairline-strong);
  border-radius: 999px;
  color: var(--text-dim);
}
.chip::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ice);
  box-shadow: 0 0 0 3px rgba(93,169,233,0.18);
}


/* ============================================
   FEATURE CARDS
   ============================================ */

.feature-card {
  background: var(--carbon-2);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 3vw, 36px);
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color var(--speed) var(--ease), transform var(--speed) var(--ease);
}
.feature-card:hover {
  border-color: var(--hairline-strong);
}

.feature-card .icon {
  width: 36px; height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ice);
}

.feature-card h3 {
  font-size: 22px;
  line-height: 1.15;
  font-weight: 600;
}
.feature-card p {
  font-size: 15px;
  line-height: 1.55;
  color: var(--text-dim);
}


/* ============================================
   STEPS (numbered, inline)
   ============================================ */

.steps {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.step {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 20px;
  border-top: 1px solid var(--hairline);
}
.step-num {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  color: var(--ice);
  letter-spacing: 0.02em;
}
.step-title { font-size: 18px; font-weight: 600; line-height: 1.1; }
.step-body  { font-size: 14px; color: var(--text-dim); line-height: 1.5; }


/* ============================================
   SPEC GRID (product detail)
   ============================================ */

.spec {
  border-top: 1px solid var(--hairline);
  padding: 24px 0;
}
.spec-label {
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--steel);
  margin-bottom: 8px;
}
.spec-value {
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.15;
  font-weight: 500;
}


/* ============================================
   MEDIA / IMAGE BLOCKS
   ============================================ */

.media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--carbon-2);
  border: 1px solid var(--hairline);
}
.media img { width: 100%; height: auto; display: block; }

.media-caption {
  font-size: 12px;
  color: var(--steel);
  padding: 12px 16px;
  border-top: 1px solid var(--hairline);
}


/* ============================================
   CALLOUT BAND
   ============================================ */

.band {
  background: var(--soft-white);
  color: var(--carbon);
  padding-block: clamp(56px, 8vw, 112px);
  text-align: center;
}
.band h2 { font-size: clamp(34px, 5vw, 60px); color: var(--carbon); font-weight: 700; letter-spacing: -0.025em; }
.band p  { margin-top: 16px; color: rgba(17,19,24,0.65); max-width: 58ch; margin-inline: auto; }
.band .btn { margin-top: 32px; background: var(--carbon); color: var(--soft-white); }
.band .btn:hover { background: #000; color: var(--soft-white); }


/* ============================================
   FOUNDER STRIP
   ============================================ */

.founder {
  display: grid;
  grid-template-columns: minmax(240px, 320px) 1fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
}
.founder-photo {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--carbon-2) url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="38" r="18" fill="%238D8D8D" opacity=".35"/><path d="M20 92c0-18 14-30 30-30s30 12 30 30" fill="%238D8D8D" opacity=".35"/></svg>') center/60% no-repeat;
}
.founder-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }

@media (max-width: 720px) {
  .founder { grid-template-columns: 1fr; }
  .founder-photo { max-width: 320px; }
}


/* ============================================
   FOOTER
   ============================================ */

.footer {
  margin-top: auto;
  border-top: 1px solid var(--hairline);
  padding-block: 56px 36px;
  font-size: 14px;
  color: var(--text-dim);
}
.footer-inner { width: var(--container); margin-inline: auto; }

.footer-grid {
  display: grid;
  gap: 40px;
  grid-template-columns: minmax(200px, 1.5fr) repeat(3, minmax(140px, 1fr));
  margin-bottom: 48px;
}
@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  margin-bottom: 12px;
  display: inline-block;
}
.footer-brand-logo {
  display: block;
  height: 56px;
  width: 56px;
  border-radius: 10px;
  margin-bottom: 14px;
  object-fit: contain;
}
.footer-brand-line {
  font-size: 13px;
  color: var(--text-mute);
  line-height: 1.5;
  max-width: 32ch;
}

.footer h4 {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text);
  margin-bottom: 18px;
}
.footer ul { display: flex; flex-direction: column; gap: 10px; }
.footer a { color: var(--text-dim); font-size: 14px; }
.footer a:hover { color: var(--text); }

.footer-legal {
  padding-top: 28px;
  border-top: 1px solid var(--hairline);
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-mute);
}
.footer-entity { color: var(--text-mute); letter-spacing: 0.01em; }


/* ============================================
   LEGAL PAGES
   ============================================ */

.legal {
  padding-block: clamp(56px, 7vw, 104px);
}
.legal h1 {
  font-size: clamp(34px, 4.5vw, 52px);
  letter-spacing: -0.025em;
  margin-bottom: 8px;
}
.legal .legal-meta { color: var(--text-mute); font-size: 13px; margin-bottom: 48px; }
.legal h2 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  color: var(--ice);
  margin-top: 36px;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.legal h3 { font-size: 16px; font-weight: 600; color: var(--text); margin-top: 22px; margin-bottom: 8px; }
.legal p  { font-size: 15px; line-height: 1.65; color: var(--text-dim); margin-bottom: 12px; }
.legal ul { padding-left: 20px; margin-bottom: 12px; }
.legal ul li { list-style: disc; margin-bottom: 6px; color: var(--text-dim); line-height: 1.55; }
.legal strong { color: var(--text); font-weight: 600; }
.legal a { color: var(--ice); text-decoration: underline; text-underline-offset: 2px; }
.legal table { width: 100%; border-collapse: collapse; margin-block: 20px; font-size: 14px; }
.legal th, .legal td { padding: 12px 14px; border-bottom: 1px solid var(--hairline); text-align: left; vertical-align: top; }
.legal th { color: var(--text); font-weight: 600; }
.legal td { color: var(--text-dim); }


/* ============================================
   FORMS
   ============================================ */

.form {
  display: flex;
  flex-direction: column;
  gap: 18px;
  max-width: 560px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text);
}
.form-input,
.form-textarea,
.form-select {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 16px;
  letter-spacing: -0.005em;
  padding: 14px 16px;
  border-radius: 10px;
  border: 1px solid var(--hairline-strong);
  background-color: rgba(247, 247, 245, 0.03);
  color: var(--text);
  outline: none;
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  transition: border-color var(--speed) var(--ease), background-color var(--speed) var(--ease);
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--ice);
  background-color: rgba(247, 247, 245, 0.05);
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-mute); }
.form-textarea { resize: vertical; min-height: 120px; }
.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23F7F7F5' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 38px;
}
.form-select option { background-color: var(--carbon); color: var(--text); }

.form-consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.55;
}
.form-consent input { margin-top: 3px; accent-color: var(--ice); }
.form-consent a { color: var(--text); text-decoration: underline; text-underline-offset: 2px; }

.form-feedback { font-size: 14px; min-height: 20px; line-height: 1.5; }
.form-feedback.success { color: #41d48a; }
.form-feedback.error   { color: #ff6b6b; }


/* ============================================
   LIST UTILITY
   ============================================ */

.check-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  list-style: none;
  padding: 0;
}
.check-list li {
  padding-left: 30px;
  position: relative;
  font-size: 16px;
  color: var(--text-dim);
  line-height: 1.5;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 7px;
  width: 16px; height: 16px;
  border: 1.5px solid var(--ice);
  border-radius: 50%;
  background:
    radial-gradient(circle at center, var(--ice) 0 3px, transparent 4px);
}


/* ============================================
   QUOTE / TESTIMONIAL
   ============================================ */

.quote {
  padding: 32px;
  background: var(--carbon-2);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
}
.quote p {
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.4;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
  font-weight: 500;
}
.quote cite {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-mute);
  font-style: normal;
}


/* ============================================
   REDUCED MOTION
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}