/* ============================================================
   Signal & Junction — landing page
   Built on CSE Marketing tokens. Dark canvas, editorial type.
   ============================================================ */

/* Accent tokens (Tweaks-controlled) */
:root {
  --accent: var(--cs-scarlet);
  --accent-hover: var(--cs-red-bright);
  --accent-press: var(--cs-red-deep);
  --accent-fg: #ffffff;
  --accent-glow: rgba(200, 16, 46, 0.35);
}
:root[data-accent="hover"] {
  --accent: var(--cs-red);
  --accent-hover: var(--cs-red-bright);
  --accent-press: var(--cs-red-deep);
  --accent-fg: #ffffff;
  --accent-glow: rgba(208, 47, 52, 0.40);
}
:root[data-accent="mono"] {
  --accent: #ffffff;
  --accent-hover: #ededee;
  --accent-press: #b4b4ba;
  --accent-fg: #000000;
  --accent-glow: rgba(255, 255, 255, 0.18);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: #000;
  color: var(--cs-fg-1);
  font-family: var(--cs-font-sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; }
button { font-family: inherit; }
img { display: block; max-width: 100%; }
::selection { background: var(--accent); color: var(--accent-fg); }

/* Layout */
.sj-wrap { max-width: 1280px; margin: 0 auto; padding: 0 32px; }
@media (max-width: 720px) { .sj-wrap { padding: 0 20px; } }

/* === Header ============================================== */
.sj-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(0, 0, 0, 0.78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--cs-ease);
}
.sj-header[data-scrolled="true"] { border-color: var(--cs-line-1); }
.sj-header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 68px;
}
.sj-wordmark {
  font-weight: 900;
  letter-spacing: -0.04em;
  font-size: 22px;
  color: #fff;
  display: inline-flex;
  align-items: baseline;
  gap: 0;
}
.sj-wordmark .amp { color: var(--accent); margin: 0 1px; }
.sj-nav { display: flex; gap: 28px; align-items: center; }
.sj-nav a {
  color: var(--cs-fg-2);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color 0.15s var(--cs-ease);
}
.sj-nav a:hover { color: #fff; }
.sj-nav .sj-cta-mini {
  background: var(--accent);
  color: var(--accent-fg);
  padding: 9px 16px;
  border-radius: 3px;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.03em;
}
.sj-nav .sj-cta-mini:hover { background: var(--accent-hover); color: var(--accent-fg); }
@media (max-width: 640px) {
  .sj-nav a:not(.sj-cta-mini) { display: none; }
}

/* === Eyebrow / labels ==================================== */
.sj-eyebrow {
  font-family: var(--cs-font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cs-fg-3);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.sj-eyebrow .dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
  flex: none;
}

/* === CTA ================================================= */
.sj-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 24px;
  background: var(--accent);
  color: var(--accent-fg);
  border: none;
  border-radius: 3px;
  font-family: var(--cs-font-sans);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.02em;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s var(--cs-ease), transform 0.06s;
}
.sj-cta:hover { background: var(--accent-hover); }
.sj-cta:active { transform: scale(0.985); }
.sj-cta .arrow { transition: transform 0.2s var(--cs-ease); }
.sj-cta:hover .arrow { transform: translateX(3px); }
.sj-cta, .sj-cta-mini { white-space: nowrap; }

/* === Hero ================================================ */
.sj-hero {
  padding: 80px 0 120px;
  min-height: calc(100vh - 68px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.sj-hero-meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 64px;
  gap: 24px;
  flex-wrap: wrap;
}
.sj-hero-display {
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 0.86;
  font-size: clamp(56px, 13vw, 200px);
  color: #fff;
  text-wrap: balance;
}
.sj-hero-display .line { display: block; overflow: hidden; padding-bottom: 0.02em; }
.sj-hero-display .line .inner {
  display: inline-block;
  animation: type-rise 0.9s cubic-bezier(.2,.75,.2,1) both;
}
.sj-hero-display .amp { color: var(--accent); }
@keyframes type-rise {
  from { transform: translateY(105%); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}
.sj-hero-bottom {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  margin-top: 64px;
  align-items: end;
  animation: type-rise 0.9s cubic-bezier(.2,.75,.2,1) both;
  animation-delay: 0.5s;
}
.sj-hero-sub {
  font-size: clamp(16px, 1.6vw, 22px);
  line-height: 1.4;
  color: var(--cs-fg-1);
  font-weight: 400;
  max-width: 520px;
  text-wrap: pretty;
}
.sj-hero-cta-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}
.sj-hero-byline {
  font-family: var(--cs-font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cs-fg-3);
}
@media (max-width: 800px) {
  .sj-hero-bottom { grid-template-columns: 1fr; gap: 32px; }
}

/* Hero orb (sparing — only the brand red, never in mono mode).
   Tucked into the bottom-right corner so it never collides with text. */
.sj-orb {
  position: absolute;
  bottom: 40px;
  right: 40px;
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 30%,
    var(--accent-hover) 0%,
    var(--accent) 55%,
    var(--accent-press) 100%);
  box-shadow: 0 0 100px 0 var(--accent-glow);
  animation: orb-pulse 2.6s ease-in-out infinite, orb-in 1.2s cubic-bezier(.2,.7,.2,1) both;
  z-index: 1;
}
@keyframes orb-pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.035); }
}
@keyframes orb-in {
  from { transform: scale(0.4); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}
:root[data-accent="mono"] .sj-orb { display: none; }
@media (max-width: 800px) {
  .sj-orb { width: 56px; height: 56px; bottom: 24px; right: 24px; }
}

/* Hero grid frame (sparing hairline rules) */
.sj-hero::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 1px;
  background: var(--cs-line-1);
  opacity: 0;
}

/* === Section base ======================================== */
.sj-section {
  padding: 120px 0;
  border-top: 1px solid var(--cs-line-1);
  position: relative;
}
.sj-section-head {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 32px;
  margin-bottom: 72px;
}
.sj-section-num {
  font-family: var(--cs-font-mono);
  font-size: 11px;
  color: var(--cs-fg-3);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.sj-section-title {
  font-size: clamp(40px, 6vw, 80px);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 0.95;
  color: #fff;
  text-wrap: balance;
  max-width: 18ch;
}
@media (max-width: 800px) {
  .sj-section { padding: 80px 0; }
  .sj-section-head { grid-template-columns: 1fr; }
}

/* === Filter chips ======================================== */
.sj-filter { display: flex; gap: 6px; flex-wrap: wrap; }
.sj-filter button {
  background: transparent;
  border: 1px solid var(--cs-line-1);
  color: var(--cs-fg-2);
  padding: 8px 14px;
  font-family: var(--cs-font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s var(--cs-ease);
}
.sj-filter button:hover {
  color: #fff;
  border-color: var(--cs-line-2);
}
.sj-filter button[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}

/* === Services list ======================================= */
.sj-svc-list {
  border-top: 1px solid var(--cs-line-1);
}
.sj-svc {
  display: grid;
  grid-template-columns: 56px 2fr 2.2fr 40px;
  gap: 32px;
  padding: 32px 0;
  border-bottom: 1px solid var(--cs-line-1);
  align-items: start;
  cursor: default;
  position: relative;
  transition: padding 0.25s var(--cs-ease), background 0.25s var(--cs-ease);
}
.sj-svc:hover {
  padding-left: 20px;
  padding-right: 20px;
  background: var(--cs-bg-1);
}
.sj-svc::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.4s var(--cs-ease);
}
.sj-svc:hover::before { width: 100%; }
.sj-svc-num {
  font-family: var(--cs-font-mono);
  font-size: 12px;
  color: var(--cs-fg-3);
  letter-spacing: 0.14em;
  padding-top: 14px;
}
.sj-svc-title {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: #fff;
}
.sj-svc-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}
.sj-svc-tag {
  font-family: var(--cs-font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cs-fg-3);
  padding: 4px 10px;
  border: 1px solid var(--cs-line-1);
  border-radius: 999px;
}
.sj-svc-desc {
  font-size: 14px;
  color: var(--cs-fg-2);
  line-height: 1.55;
  padding-top: 12px;
}
.sj-svc-arrow {
  color: var(--cs-fg-3);
  font-size: 22px;
  text-align: right;
  padding-top: 8px;
  transition: color 0.2s var(--cs-ease), transform 0.2s var(--cs-ease);
}
.sj-svc:hover .sj-svc-arrow { color: var(--accent); transform: translateX(4px); }
@media (max-width: 800px) {
  .sj-svc {
    grid-template-columns: 40px 1fr 24px;
    gap: 16px;
  }
  .sj-svc-desc { grid-column: 1 / -1; padding-top: 4px; }
}

/* === Work grid =========================================== */
.sj-work {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 32px 24px;
}
.sj-work-item {
  grid-column: span 4;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  group: work;
}
.sj-work-item--wide { grid-column: span 6; }
@media (max-width: 900px) {
  .sj-work-item, .sj-work-item--wide { grid-column: span 6; }
}
@media (max-width: 600px) {
  .sj-work-item, .sj-work-item--wide { grid-column: span 12; }
}

.sj-work-visual {
  aspect-ratio: 4 / 5;
  background: var(--cs-bg-2);
  border: 1px solid var(--cs-line-1);
  overflow: hidden;
  position: relative;
  transition: border-color 0.2s var(--cs-ease);
}
.sj-work-item:hover .sj-work-visual { border-color: var(--cs-line-2); }
.sj-work-visual img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--cs-ease);
}
.sj-work-item:hover .sj-work-visual img { transform: scale(1.03); }

/* Web project — type-only "browser" card */
.sj-work-browser {
  width: 100%; height: 100%;
  display: flex;
  flex-direction: column;
  background:
    linear-gradient(180deg, transparent 0%, rgba(255,255,255,0.015) 100%),
    #0a0a0b;
}
.sj-work-browser-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--cs-line-1);
}
.sj-work-browser-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cs-bg-4);
}
.sj-work-browser-url {
  font-family: var(--cs-font-mono);
  font-size: 11px;
  color: var(--cs-fg-3);
  letter-spacing: 0.02em;
  margin-left: 10px;
}
.sj-work-browser-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 32px 28px;
  gap: 14px;
}
.sj-work-browser-eyebrow {
  font-family: var(--cs-font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cs-fg-3);
}
.sj-work-browser-title {
  font-size: clamp(22px, 2.4vw, 32px);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: #fff;
  line-height: 1.05;
}
.sj-work-browser-rule {
  width: 24px;
  height: 2px;
  background: var(--accent);
  margin-top: 6px;
}

.sj-work-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--cs-line-1);
  gap: 16px;
}
.sj-work-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.01em;
}
.sj-work-sub {
  font-family: var(--cs-font-mono);
  font-size: 10px;
  color: var(--cs-fg-3);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
}
.sj-work-desc {
  font-size: 12px;
  color: var(--cs-fg-3);
  margin-top: 4px;
}

/* === Contact ============================================= */
.sj-contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}
@media (max-width: 800px) {
  .sj-contact { grid-template-columns: 1fr; gap: 56px; }
}
.sj-contact-head h2 {
  font-size: clamp(40px, 6vw, 80px);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 0.95;
  color: #fff;
  text-wrap: balance;
}
.sj-contact-direct {
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--cs-line-1);
}
.sj-contact-direct-label {
  font-family: var(--cs-font-mono);
  font-size: 11px;
  color: var(--cs-fg-3);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.sj-contact-direct a {
  display: block;
  color: #fff;
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  margin-bottom: 10px;
  transition: color 0.15s var(--cs-ease);
}
.sj-contact-direct a:hover { color: var(--accent); }

.sj-form {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.sj-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.sj-field { display: flex; flex-direction: column; gap: 6px; }
.sj-field label {
  font-family: var(--cs-font-mono);
  font-size: 10px;
  color: var(--cs-fg-3);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.sj-field input,
.sj-field textarea,
.sj-field select {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--cs-line-2);
  color: #fff;
  font-family: var(--cs-font-sans);
  font-size: 18px;
  padding: 10px 0;
  outline: none;
  transition: border-color 0.15s var(--cs-ease);
  border-radius: 0;
}
.sj-field select { appearance: none; cursor: pointer; }
.sj-field select option { background: #0a0a0b; color: #fff; }
.sj-field input:focus,
.sj-field textarea:focus,
.sj-field select:focus { border-color: var(--accent); }
.sj-field input::placeholder,
.sj-field textarea::placeholder { color: var(--cs-fg-4); }
.sj-field textarea { resize: vertical; min-height: 96px; line-height: 1.4; }
.sj-field--error input,
.sj-field--error textarea,
.sj-field--error select { border-color: var(--cs-error); }
.sj-field-error {
  font-family: var(--cs-font-mono);
  font-size: 11px;
  color: var(--cs-error);
  letter-spacing: 0.02em;
  margin-top: 2px;
}

.sj-field-select-wrap { position: relative; }
.sj-field-select-wrap::after {
  content: "↓";
  position: absolute;
  right: 0;
  top: 12px;
  font-family: var(--cs-font-mono);
  color: var(--cs-fg-3);
  pointer-events: none;
  font-size: 14px;
}

.sj-form-success {
  padding: 32px;
  background: var(--cs-bg-1);
  border: 1px solid var(--cs-line-1);
  border-left: 2px solid var(--accent);
}
.sj-form-success p { margin: 0; }

/* === Footer ============================================== */
.sj-footer {
  border-top: 1px solid var(--cs-line-1);
  padding: 72px 0 36px;
}
.sj-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 64px;
}
@media (max-width: 720px) {
  .sj-footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .sj-footer-grid > :first-child { grid-column: 1 / -1; margin-bottom: 16px; }
}
.sj-footer-block-label {
  font-family: var(--cs-font-mono);
  font-size: 10px;
  color: var(--cs-fg-3);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.sj-footer-block a {
  display: block;
  color: #fff;
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 6px;
  transition: color 0.15s var(--cs-ease);
}
.sj-footer-block a:hover { color: var(--accent); }
.sj-footer-block p { font-size: 14px; color: var(--cs-fg-2); }
.sj-footer-desc {
  color: var(--cs-fg-2);
  font-size: 14px;
  margin-top: 14px;
  max-width: 360px;
  line-height: 1.55;
}
.sj-footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 28px;
  border-top: 1px solid var(--cs-line-1);
  font-family: var(--cs-font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cs-fg-3);
  flex-wrap: wrap;
  gap: 12px;
}

/* === Reveal on scroll (basic IO) ========================== */
.sj-reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s var(--cs-ease-out), transform 0.6s var(--cs-ease-out); }
.sj-reveal.is-visible { opacity: 1; transform: translateY(0); }