/* ===========================================================================
   RangeDay marketing landing page — light "paper" theme.
   Single stylesheet for index.html. Tokens are a self-contained subset of the
   RangeDay design system (brand ramp, marketing aliases, type, radii, motion).
   =========================================================================== */

:root {
  /* Brand ramp — warm rust → ember → amber */
  --rd-rust:        #b43c13;  /* eyebrow, feature glyph, status text */
  --rd-rust-deep:   #7f2b10;  /* CTA gradient floor */
  --rd-rust-bright: #cb5524;  /* CTA gradient ceiling */
  --rd-ember:       #e07020;  /* primary accent — "Day", accent word, status dot */
  --rd-amber:       #f09d3f;  /* secondary warm glow, chrome amber dot */

  /* Marketing aliases (light surface) */
  --mk-text:       #1e1f22;            /* ink — headings, "Range" */
  --mk-text-body:  #4a4742;            /* warm charcoal — body copy */
  --mk-muted:      #857f76;            /* warm grey — nav, tagline, captions */
  --mk-line:       rgba(28, 25, 22, 0.12);  /* hairline borders */
  --mk-accent:     var(--rd-rust);     /* CTA gradient mid-stop */

  /* Type */
  --font-display: "Figtree", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --font-body:    "Figtree", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --display-1: clamp(2.8rem, 5.6vw, 5rem);
  --tracking-display: -0.03em;
  --tracking-eyebrow: 0.2em;

  /* Radii */
  --radius-md:   6px;
  --radius-pill: 999px;

  /* Layout */
  --container-web: 1180px;

  /* Motion */
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 140ms;
  --dur-base: 180ms;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--mk-text);
  background:
    radial-gradient(circle at 84% 8%, rgba(224, 112, 32, 0.10), transparent 30%),
    radial-gradient(circle at 4% 92%, rgba(240, 157, 63, 0.08), transparent 26%),
    linear-gradient(180deg, #fbf9f5 0%, #f4f1ea 55%, #efebe2 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    linear-gradient(rgba(28, 25, 22, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(28, 25, 22, 0.022) 1px, transparent 1px);
  background-size: 180px 180px, 180px 180px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 92%);
          mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 92%);
}

.mk-shell {
  width: min(calc(100% - 32px), var(--container-web));
  margin: 0 auto;
  padding: 28px 0 48px;
  position: relative;
  z-index: 1;
}

/* Header */
.mk-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 22px;
  border: 1px solid var(--mk-line);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(18px);
  box-shadow: 0 10px 30px rgba(40, 34, 28, 0.08);
  position: sticky;
  top: 16px;
  z-index: 20;
}

.mk-brand {
  display: inline-flex;
  align-items: center;
  gap: 15px;
  color: var(--mk-text);
  text-decoration: none;
}

.mk-brand-mark {
  width: 50px;
  height: 50px;
  flex-shrink: 0;
  background: url(logo/rangeday-mark.svg) center / contain no-repeat;
}

.mk-brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 0.96;
}

.mk-brand-copy strong {
  font-family: var(--font-display);
  font-size: 2.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--mk-text);
}

.mk-brand-copy strong .mk-day {
  color: var(--rd-ember);
}

.mk-brand-copy > span {
  font-size: 0.74rem;
  color: var(--mk-muted);
  margin-top: 6px;
  letter-spacing: 0.01em;
}

.mk-nav {
  display: inline-flex;
  gap: 26px;
  margin-left: auto;
}

.mk-nav a {
  color: var(--mk-muted);
  text-decoration: none;
  font-size: 0.92rem;
  transition: color var(--dur-fast) var(--ease-standard);
}

.mk-nav a:hover {
  color: var(--mk-text);
}

.mk-status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 15px;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  color: var(--rd-rust);
  font-weight: 600;
  background: rgba(224, 112, 32, 0.12);
  border: 1px solid rgba(224, 112, 32, 0.28);
}

.mk-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--rd-ember);
  box-shadow: 0 0 12px rgba(224, 112, 32, 0.6);
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

/* Hero */
.mk-hero {
  position: relative;
  margin-top: 52px;
  display: flex;
  align-items: center;
  min-height: 600px;
}

.mk-copy {
  position: relative;
  z-index: 2;
  max-width: 600px;
}

h1 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: var(--tracking-display);
  font-size: var(--display-1);
  line-height: 0.94;
  margin: 0 0 24px;
  color: var(--mk-text);
}

h1 .accent {
  color: var(--rd-ember);
}

.mk-slogan {
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--mk-text-body);
  margin: 0 0 30px;
  max-width: 52ch;
}

.mk-slogan strong {
  color: var(--mk-text);
  font-weight: 600;
}

.mk-feature-list {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  display: grid;
  gap: 11px;
}

.mk-feature-list li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--mk-line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 2px 10px rgba(40, 34, 28, 0.04);
}

.mk-feature-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 11px;
  position: relative;
  background: linear-gradient(135deg, rgba(224, 112, 32, 0.16), rgba(240, 157, 63, 0.12));
  border: 1px solid rgba(224, 112, 32, 0.22);
  color: var(--rd-rust);
}

.mk-feature-icon svg {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 22px;
  height: 22px;
}

.mk-feature-list strong {
  display: block;
  color: var(--mk-text);
  font-size: 0.97rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.mk-feature-list span {
  display: block;
  color: var(--mk-muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

.mk-signup {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mk-signup-label {
  font-size: 0.85rem;
  color: var(--mk-muted);
}

.mk-signup-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.mk-signup input[type="email"] {
  flex: 1;
  min-width: 230px;
  min-height: 52px;
  padding: 0 18px;
  font: inherit;
  color: var(--mk-text);
  background: #fff;
  border: 1px solid var(--mk-line);
  border-radius: var(--radius-pill);
  box-shadow: inset 0 1px 3px rgba(40, 34, 28, 0.05);
}

.mk-signup input[type="email"]::placeholder {
  color: #a8a39b;
}

.mk-signup input[type="email"]:focus {
  outline: 2px solid rgba(224, 112, 32, 0.35);
  outline-offset: 2px;
}

.mk-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 26px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
  background: linear-gradient(135deg, #cb5524 0%, var(--mk-accent) 48%, #7f2b10 100%);
  box-shadow: 0 14px 30px rgba(180, 60, 19, 0.28);
  transition: transform var(--dur-base) var(--ease-standard), box-shadow var(--dur-base) var(--ease-standard);
}

.mk-button:hover,
.mk-button:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 20px 40px rgba(180, 60, 19, 0.34);
}

.mk-form-status {
  margin: 0;
  font-size: 0.88rem;
  color: var(--mk-muted);
  min-height: 1.2em;
}

.mk-form-status.is-success { color: var(--rd-rust); }
.mk-form-status.is-error { color: #c0392b; }

.hidden-field {
  position: absolute;
  left: -9999px;
}

/* Product visual */
.mk-visual {
  position: absolute;
  top: 50%;
  right: -8%;
  width: 76%;
  max-width: 1020px;
  z-index: 1;
  transform: translateY(-50%) perspective(1400px) rotateY(-10deg) rotate(10deg);
  pointer-events: none;
  filter: drop-shadow(0 40px 70px rgba(40, 34, 28, 0.22));
}

.mk-frame {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(28, 25, 22, 0.10);
  background: #fff;
  padding: 12px;
  box-shadow: 0 30px 60px rgba(40, 34, 28, 0.16);
  -webkit-mask-image: linear-gradient(100deg, transparent 0%, rgba(0, 0, 0, 0.3) 22%, rgba(0, 0, 0, 0.85) 46%, black 62%);
          mask-image: linear-gradient(100deg, transparent 0%, rgba(0, 0, 0, 0.3) 22%, rgba(0, 0, 0, 0.85) 46%, black 62%);
}

.mk-chrome {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 4px 10px;
}

.mk-cdot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: rgba(28, 25, 22, 0.12);
}

.mk-cdot.red { background: #e0654a; }
.mk-cdot.amber { background: var(--rd-amber); }
.mk-cdot.green { background: #7aa36b; }

.mk-url {
  margin-left: 14px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  color: var(--mk-muted);
  background: #f4f1ea;
  border: 1px solid var(--mk-line);
}

.mk-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
  background: #f4f1ea;
}

/* Footer */
.mk-footer {
  margin-top: 64px;
  padding-top: 22px;
  border-top: 1px solid var(--mk-line);
  color: var(--mk-muted);
  font-size: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 2;
}

.mk-credit {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--mk-muted);
  text-decoration: none;
  opacity: 0.85;
  transition: opacity var(--dur-fast) var(--ease-standard);
}

.mk-credit:hover {
  opacity: 1;
}

.mk-credit img {
  height: 18px;
  width: auto;
  display: block;
}

@media (max-width: 1100px) {
  .mk-visual { right: -14%; width: 84%; }
}

@media (max-width: 980px) {
  .mk-hero {
    flex-direction: column;
    align-items: stretch;
    min-height: 0;
    gap: 36px;
  }

  .mk-visual {
    position: relative;
    top: auto;
    right: auto;
    width: 100%;
    max-width: 100%;
    transform: none;
    order: 2;
  }

  .mk-frame {
    -webkit-mask-image: none;
            mask-image: none;
  }

  .mk-copy {
    order: 1;
    max-width: 100%;
  }

  .mk-nav { display: none; }
}

@media (max-width: 620px) {
  .mk-signup-row { flex-direction: column; }
  .mk-button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .mk-dot { animation: none; }
  .mk-button { transition: none; }
}