/* ═══════════════════════════════════════════════════════════════════════
   SHIP · Sign-in
   Editorial Data Desk aesthetic — split canvas, Fraunces display serif,
   JetBrains Mono metadata, ambient property-surveillance grid.
   Built as a single stylesheet (no inline styles) so the form lives in
   HTML and the poetry lives here.
   ═══════════════════════════════════════════════════════════════════════ */

:root {
  --bg:        #0a0b0f;
  --bg-deep:   #06070b;
  --surface:   #12131a;
  --raised:    #1a1b24;
  --border:    #2a2b36;
  --border-s:  #1e1f28;
  --text:      #e8e9ed;
  --muted:     #a0a2ad;
  --dim:       #7f8290;
  --faint:     #4a4d5c;

  --accent:      #4f8cff;
  --accent-soft: rgba(79,140,255,.08);
  --accent-glow: rgba(79,140,255,.22);
  --amber:       #fbbf24;
  --amber-s:     rgba(251,191,36,.1);
  --rose:        #f472b6;
  --rose-s:      rgba(244,114,182,.1);
  --green:       #34d399;

  --font:       'DM Sans', -apple-system, sans-serif;
  --font-d:     'Fraunces', 'Times New Roman', serif;
  --font-m:     'JetBrains Mono', 'SF Mono', monospace;

  --radius:    12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
}

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

html, body { height:100%; }

body {
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:15px;
  line-height:1.5;
  overflow:hidden;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

/* ─── Grain overlay — SVG noise, blends for warmth ─────────────────── */

.grain {
  position:fixed;
  inset:0;
  z-index:50;
  pointer-events:none;
  opacity:.06;
  mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.8 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

/* ─── Shell — two columns ──────────────────────────────────────────── */

.shell {
  display:grid;
  grid-template-columns: 1.05fr 0.95fr;
  height:100vh;
  position:relative;
  isolation:isolate;
}

/* ═══ LEFT — brand canvas ════════════════════════════════════════════ */

.brand-panel {
  position:relative;
  overflow:hidden;
  padding:48px 64px 40px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, var(--accent-glow), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  animation: panel-in .9s cubic-bezier(.2,.8,.2,1) both;
}

@keyframes panel-in {
  from { opacity:0; transform:translateX(-12px); }
  to   { opacity:1; transform:translateX(0); }
}

/* decorative edge line */
.brand-panel::after {
  content:"";
  position:absolute;
  top:0; right:0; bottom:0;
  width:1px;
  background:linear-gradient(180deg, transparent 0%, var(--border) 20%, var(--border) 80%, transparent 100%);
}

.brand-meta {
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-m);
  font-size:11px;
  color:var(--dim);
  letter-spacing:.08em;
  text-transform:uppercase;
  z-index:2;
}
.brand-meta-dot {
  width:7px; height:7px; border-radius:50%;
  background:var(--green);
  box-shadow:0 0 8px var(--green);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%,100% { opacity:.5; }
  50%     { opacity:1; }
}

/* ── Ambient watch grid — property cells pulsing ────────────────────── */

.watchgrid {
  position:absolute;
  inset:0;
  display:grid;
  grid-template-columns:repeat(20, 1fr);
  grid-template-rows:repeat(10, 1fr);
  gap:10px;
  padding:140px 64px;
  z-index:1;
  opacity:.55;
  mask-image:radial-gradient(ellipse 70% 90% at 50% 50%, black 20%, transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 70% 90% at 50% 50%, black 20%, transparent 75%);
}
.watchgrid-cell {
  border-radius:2px;
  background:var(--border-s);
  transition:background .6s ease;
  animation: cell-pulse 14s ease-in-out infinite;
  animation-delay: calc(var(--i, 0) * 60ms);
}

/* Four tints across the grid — deterministic "risk" colouration */
.watchgrid-cell:nth-child(7n)    { background:var(--accent-soft); animation-delay:.3s; }
.watchgrid-cell:nth-child(11n)   { background:rgba(251,191,36,.10); animation-delay:1.1s; }
.watchgrid-cell:nth-child(17n)   { background:rgba(244,114,182,.09); animation-delay:2.3s; }
.watchgrid-cell:nth-child(23n)   { background:rgba(52,211,153,.10); animation-delay:3.7s; }
.watchgrid-cell:nth-child(5n+2)  { animation-delay:.9s; }
.watchgrid-cell:nth-child(13n+3) { animation-delay:2.0s; }

@keyframes cell-pulse {
  0%,90%,100% { opacity:.35; transform:scale(1); }
  5%          { opacity:1;   transform:scale(1.25); }
  15%         { opacity:.6;  transform:scale(1); }
}

@media (prefers-reduced-motion: reduce) {
  .watchgrid-cell { animation:none; }
  .brand-meta-dot { animation:none; }
  .brand-panel { animation:none; }
}

/* ── Centre stack: logo, name, tagline, byline ─────────────────────── */

.brand-body {
  position:relative;
  z-index:3;
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  padding:0;
  max-width:520px;
}

.brand-logomark {
  width:64px;
  height:64px;
  border-radius:16px;
  background:linear-gradient(135deg, var(--accent), #7c5cfc 70%, #b366ff);
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-d);
  font-size:34px;
  font-weight:700;
  color:#fff;
  letter-spacing:-.02em;
  box-shadow:
    0 0 0 1px rgba(255,255,255,.06) inset,
    0 14px 48px -10px var(--accent-glow),
    0 2px 8px rgba(0,0,0,.4);
  margin-bottom:28px;
  animation: body-in .9s .2s cubic-bezier(.2,.8,.2,1) both;
}

.brand-name {
  font-family:var(--font-d);
  font-weight:600;
  font-size:84px;
  line-height:.95;
  letter-spacing:-.045em;
  color:var(--text);
  font-variation-settings:"SOFT" 50, "WONK" 0;
  animation: body-in .9s .3s cubic-bezier(.2,.8,.2,1) both;
}

.brand-tagline {
  font-family:var(--font-d);
  font-weight:300;
  font-style:italic;
  font-size:28px;
  color:var(--muted);
  margin-top:12px;
  letter-spacing:-.015em;
  animation: body-in .9s .45s cubic-bezier(.2,.8,.2,1) both;
}

@keyframes body-in {
  from { opacity:0; transform:translateY(14px); }
  to   { opacity:1; transform:translateY(0); }
}

/* Rotating byline slot — cross-fades between phrases */
.brand-byline {
  position:relative;
  margin-top:44px;
  min-height:22px;
  max-width:420px;
  font-family:var(--font-m);
  font-size:12px;
  color:var(--dim);
  letter-spacing:.03em;
  animation: body-in .9s .6s cubic-bezier(.2,.8,.2,1) both;
}
.brand-byline::before {
  content:"";
  position:absolute;
  left:0; top:-14px;
  width:36px; height:1px;
  background:var(--accent);
  opacity:.5;
}
.brand-byline-slot {
  position:absolute;
  left:0; top:0;
  opacity:0;
  transform:translateY(4px);
  transition:opacity .5s ease, transform .5s ease;
}
.brand-byline-slot.is-visible {
  opacity:1;
  transform:translateY(0);
}

/* Bottom footer — issue / date */
.brand-foot {
  position:relative;
  z-index:3;
  display:flex;
  align-items:baseline;
  gap:12px;
  font-family:var(--font-m);
  font-size:11px;
  color:var(--faint);
  letter-spacing:.06em;
  text-transform:uppercase;
  padding-top:24px;
  border-top:1px solid var(--border-s);
}
.brand-foot-label {
  color:var(--faint);
}
.brand-foot-value {
  color:var(--muted);
}

/* ═══ RIGHT — form panel ═════════════════════════════════════════════ */

.form-panel {
  position:relative;
  background:var(--surface);
  display:flex;
  align-items:center;
  justify-content:center;
  padding:40px 56px;
  overflow-y:auto;
  animation: form-in .9s .2s cubic-bezier(.2,.8,.2,1) both;
}

@keyframes form-in {
  from { opacity:0; transform:translateY(16px); }
  to   { opacity:1; transform:translateY(0); }
}

.form-stack {
  width:100%;
  max-width:400px;
  display:flex;
  flex-direction:column;
  gap:28px;
}

/* ── Head ──────────────────────────────────────────────────────────── */

.form-head {
  display:flex;
  flex-direction:column;
  gap:10px;
}
.form-eyebrow {
  font-family:var(--font-m);
  font-size:11px;
  color:var(--dim);
  letter-spacing:.18em;
  text-transform:uppercase;
}
.form-title {
  font-family:var(--font-d);
  font-size:40px;
  font-weight:500;
  letter-spacing:-.03em;
  line-height:1.05;
  color:var(--text);
}
.form-sub {
  font-size:14px;
  color:var(--muted);
  line-height:1.6;
}
.form-sub code {
  background:var(--raised);
  padding:1px 7px;
  border-radius:5px;
  font-family:var(--font-m);
  font-size:12px;
  color:var(--accent);
  border:1px solid var(--border-s);
}

/* ── Mode toggle — segmented tab look ───────────────────────────────── */

.mode-toggle {
  display:grid;
  grid-template-columns:1fr 1fr;
  background:var(--raised);
  padding:4px;
  border-radius:var(--radius-sm);
  border:1px solid var(--border-s);
  position:relative;
}
.mode-toggle-btn {
  background:transparent;
  border:0;
  font-family:var(--font);
  font-size:13px;
  font-weight:500;
  color:var(--muted);
  padding:9px 14px;
  border-radius:6px;
  cursor:pointer;
  transition:color .2s ease, background .2s ease;
}
.mode-toggle-btn:hover { color:var(--text); }
.mode-toggle-btn.is-active {
  background:var(--bg);
  color:var(--text);
  box-shadow:
    0 0 0 1px var(--border),
    0 2px 4px rgba(0,0,0,.3);
}

/* ── Error / status region ─────────────────────────────────────────── */

.form-error {
  min-height:18px;
  font-size:13px;
  color:var(--rose);
  background:var(--rose-s);
  border:1px solid transparent;
  border-radius:var(--radius-sm);
  padding:0 12px;
  transition:all .2s ease;
  line-height:1.4;
  display:flex;
  align-items:center;
}
.form-error:empty {
  display:none;
}
.form-error:not(:empty) {
  padding:10px 12px;
  border-color:rgba(244,114,182,.25);
  animation: shake .35s cubic-bezier(.36,.07,.19,.97);
}
.form-error--ok {
  color:var(--green) !important;
  background:rgba(52,211,153,.1) !important;
  border-color:rgba(52,211,153,.25) !important;
}

@keyframes shake {
  10%,90%  { transform:translateX(-1px); }
  20%,80%  { transform:translateX(2px); }
  30%,50%,70% { transform:translateX(-3px); }
  40%,60%  { transform:translateX(3px); }
}

/* ── Form fields ────────────────────────────────────────────────────── */

.form {
  display:flex;
  flex-direction:column;
  gap:18px;
}

.field {
  display:flex;
  flex-direction:column;
  gap:6px;
}

.field-label {
  font-family:var(--font-m);
  font-size:11px;
  color:var(--dim);
  letter-spacing:.12em;
  text-transform:uppercase;
  display:flex;
  justify-content:space-between;
  align-items:baseline;
}

.field-label-aside {
  color:var(--faint);
  text-decoration:none;
  font-size:10px;
  transition:color .2s ease;
}
.field-label-aside:hover {
  color:var(--muted);
}

.field-input {
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:13px 14px;
  font-family:var(--font);
  font-size:15px;
  color:var(--text);
  transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.field-input::placeholder {
  color:var(--faint);
  font-family:var(--font-m);
  font-size:13px;
}
.field-input:hover {
  border-color:#3a3c48;
}
.field-input:focus {
  outline:none;
  border-color:var(--accent);
  background:var(--bg-deep);
  box-shadow:0 0 0 4px var(--accent-soft);
}

/* ── Submit button ─────────────────────────────────────────────────── */

.submit {
  margin-top:6px;
  padding:14px 18px;
  border:0;
  border-radius:var(--radius-sm);
  background:linear-gradient(135deg, var(--accent) 0%, #5568ff 50%, #7c5cfc 100%);
  background-size:200% 100%;
  background-position:0% 0%;
  color:#fff;
  font-family:var(--font);
  font-size:14px;
  font-weight:600;
  letter-spacing:.01em;
  cursor:pointer;
  transition:background-position .4s ease, transform .1s ease, box-shadow .25s ease;
  box-shadow:
    0 0 0 1px rgba(255,255,255,.08) inset,
    0 4px 16px rgba(79,140,255,.22);
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  position:relative;
}
.submit:hover {
  background-position:100% 0%;
  box-shadow:
    0 0 0 1px rgba(255,255,255,.1) inset,
    0 6px 24px rgba(79,140,255,.35);
}
.submit:active { transform:translateY(1px); }
.submit:disabled { opacity:.6; cursor:not-allowed; }

.submit-label { pointer-events:none; }
.submit-spinner {
  width:14px; height:14px;
  border:2px solid rgba(255,255,255,.35);
  border-top-color:#fff;
  border-radius:50%;
  animation:spin .7s linear infinite;
}
.submit.is-busy .submit-spinner { display:inline-block !important; }
@keyframes spin { to { transform:rotate(360deg); } }

/* ── Form fine print (magic-link hint) ─────────────────────────────── */

.form-fineprint {
  font-size:12px;
  color:var(--dim);
  line-height:1.5;
  padding-top:4px;
  border-top:1px dashed var(--border-s);
  padding-top:12px;
  margin-top:4px;
}

/* ── Form foot ─────────────────────────────────────────────────────── */

.form-foot {
  display:flex;
  flex-direction:column;
  gap:4px;
  padding-top:24px;
  border-top:1px solid var(--border-s);
  font-size:12px;
}
.form-foot-line { color:var(--muted); }
.form-foot-line strong {
  font-family:var(--font-d);
  font-weight:600;
  color:var(--text);
}
.form-foot-meta {
  font-family:var(--font-m);
  font-size:10px;
  color:var(--faint);
  letter-spacing:.06em;
  text-transform:uppercase;
}

/* ═══ Responsive ═════════════════════════════════════════════════════ */

@media (max-width: 900px) {
  body { overflow:auto; }
  .shell {
    grid-template-columns:1fr;
    grid-template-rows:auto 1fr;
    height:auto;
    min-height:100vh;
  }
  .brand-panel {
    padding:32px 28px 36px;
    min-height:320px;
  }
  .brand-name { font-size:56px; }
  .brand-tagline { font-size:22px; }
  .watchgrid {
    padding:60px 28px;
    grid-template-rows:repeat(8, 1fr);
  }
  .form-panel { padding:36px 28px; }
  .form-title { font-size:32px; }
}

@media (max-width: 480px) {
  .brand-meta { font-size:10px; }
  .brand-name { font-size:44px; }
  .brand-tagline { font-size:18px; }
  .form-title { font-size:28px; }
}