/*
 * BRIDGE Modul E — gate, "Moss & Ember Press" system
 * Scoped strictly under .gate; global app tokens untouched.
 *
 * Token source (user-specified palette):
 *   moss ramp  #394319 #637330 #8CA14A #ABBB77 #C7D0A9 #D6DCC1 #E4E8D9
 *   forest ink #13301E
 *   ember      #C66306 (vibrant accent)
 * Text-contrast notes (verified):
 *   #13301E on #E4E8D9 ≈ 11.5:1 (AAA) · #394319 on #E4E8D9 ≈ 8.5:1 (AAA)
 *   #9C4A03 on #E4E8D9 ≈ 5.0:1 (AA small text) · #C66306 reserved for
 *   fills / focus / large marks · white on #B45A05 ≈ 4.8:1 (AA)
 */

.gate {
  --g-paper: #e4e8d9;
  --g-mist: #d6dcc1;
  --g-sage: #c7d0a9;
  --g-moss-l: #abbb77;
  --g-moss: #8ca14a;
  --g-olive: #637330;
  --g-olive-d: #394319;
  --g-ink: #13301e;
  --g-ember: #c66306;
  --g-ember-press: #b45a05;
  --g-ember-text: #9c4a03;
  --g-card: color-mix(in srgb, #e4e8d9 52%, #ffffff 48%);

  --g-pad: 30px;

  display: grid;
  place-items: center;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 24px;
  background:
    radial-gradient(52rem 30rem at 86% -10%, color-mix(in srgb, var(--g-ember) 13%, transparent), transparent 62%),
    radial-gradient(46rem 32rem at -10% 108%, color-mix(in srgb, var(--g-moss) 20%, transparent), transparent 58%),
    repeating-linear-gradient(0deg, transparent 0 31px, color-mix(in srgb, var(--g-sage) 40%, transparent) 31px 32px),
    repeating-linear-gradient(90deg, transparent 0 31px, color-mix(in srgb, var(--g-sage) 40%, transparent) 31px 32px),
    linear-gradient(170deg, var(--g-paper) 0%, var(--g-mist) 100%);
  color: var(--g-ink);
  font-family: var(--font-sans);
}

.gate ::selection {
  background: var(--g-moss);
  color: var(--g-paper);
}

/* ---------------------------------- screen-reader-only h1 ---------------------------------- */

.gate-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------------------------------- desk trim ---------------------------------- */

.gate-cropmark {
  position: fixed;
  width: 18px;
  height: 18px;
  pointer-events: none;
  opacity: 0.55;
}

.gate-cropmark.tl {
  top: 16px;
  left: 16px;
  border-top: 1.5px solid var(--g-olive);
  border-left: 1.5px solid var(--g-olive);
}

.gate-cropmark.tr {
  top: 16px;
  right: 16px;
  border-top: 1.5px solid var(--g-olive);
  border-right: 1.5px solid var(--g-olive);
}

.gate-cropmark.bl {
  bottom: 16px;
  left: 16px;
  border-bottom: 1.5px solid var(--g-olive);
  border-left: 1.5px solid var(--g-olive);
}

.gate-cropmark.br {
  bottom: 16px;
  right: 16px;
  border-bottom: 1.5px solid var(--g-olive);
  border-right: 1.5px solid var(--g-olive);
}

/* ---------------------------------- the slip ---------------------------------- */

.gate-formwrap {
  position: relative;
  width: min(430px, 100%);
}

.gate-card {
  position: relative;
  background: var(--g-card);
  border: 1px solid color-mix(in srgb, var(--g-sage) 80%, transparent);
  border-radius: 10px;
  padding: var(--g-pad);
  box-shadow:
    0 1px 0 rgba(19, 48, 30, 0.04),
    0 24px 48px -28px rgba(19, 48, 30, 0.35);
}

/* ---------------------------------- fields ---------------------------------- */

.gate-field {
  margin-bottom: 20px;
}

.gate-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--g-olive);
  margin-bottom: 4px;
}

.gate-field input,
.gate-field select {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1.5px solid color-mix(in srgb, var(--g-olive) 55%, transparent);
  border-radius: 0;
  padding: 8px 1px;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--g-ink);
  caret-color: var(--g-ink);
}

.gate-field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1.5 6 6.5 11 1.5' stroke='%2313301e' stroke-width='1.8' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 2px center;
  padding-right: 24px;
  cursor: pointer;
}

.gate-field input.gate-key-input {
  font-family: var(--font-mono);
  font-size: 13.5px;
}

.gate-field input::placeholder {
  color: color-mix(in srgb, var(--g-olive) 75%, transparent);
}

.gate-field input:focus,
.gate-field select:focus {
  outline: none;
  border-bottom-color: var(--g-ember);
  box-shadow: 0 1.5px 0 var(--g-ember);
}

.gate-field input:disabled,
.gate-field select:disabled {
  opacity: 0.55;
}

.gate-key-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.gate-key-row input {
  flex: 1;
  min-width: 0;
}

.gate-peek {
  flex: none;
  border: 0;
  background: none;
  padding: 2px 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--g-olive);
  cursor: pointer;
  border-bottom: 1px solid transparent;
}

.gate-peek:hover:not(:disabled) {
  color: var(--g-ink);
  border-bottom-color: color-mix(in srgb, var(--g-olive) 70%, transparent);
}

/* ---------------------------------- actions ---------------------------------- */

.gate-cta {
  width: 100%;
  border: 0;
  border-radius: 7px;
  padding: 13px 16px;
  background: var(--g-ink);
  color: var(--g-paper);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: background 160ms ease, box-shadow 160ms ease, transform 80ms ease;
}

.gate-cta:hover:not(:disabled) {
  background: var(--g-olive-d);
  box-shadow: 0 8px 20px -10px color-mix(in srgb, var(--g-ink) 70%, transparent);
}

.gate-cta:active:not(:disabled) {
  transform: translateY(1px);
}

.gate-cta:disabled {
  cursor: default;
  opacity: 0.75;
}

.gate-cta[data-phase="cleared"] {
  background: var(--g-ember-press);
}

.gate-demo {
  width: 100%;
  border: 1.5px solid var(--g-ember);
  border-radius: 7px;
  padding: 12px 16px;
  background: transparent;
  color: var(--g-ember-text);
  font-family: var(--font-sans);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease;
}

.gate-demo:hover:not(:disabled) {
  background: color-mix(in srgb, var(--g-ember) 9%, transparent);
  border-color: var(--g-ember-press);
}

.gate-demo:disabled {
  cursor: default;
  opacity: 0.55;
}

.gate-or {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 18px 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--g-olive);
}

.gate-or span {
  flex: 1;
  height: 1px;
  background: color-mix(in srgb, var(--g-olive) 28%, transparent);
}

.gate-switch {
  display: block;
  margin: 16px auto 0;
  border: 0;
  background: none;
  padding: 2px 0;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--g-olive);
  cursor: pointer;
  border-bottom: 1px solid transparent;
  transition: color 140ms ease;
}

.gate-switch:hover:not(:disabled) {
  color: var(--g-ember-text);
  border-bottom-color: color-mix(in srgb, var(--g-ember-text) 60%, transparent);
}

.gate-switch:disabled {
  opacity: 0.55;
  cursor: default;
}

/* ---------------------------------- error ---------------------------------- */

.gate-error {
  margin: 0 0 18px;
  padding-left: 10px;
  border-left: 2.5px solid var(--g-ember);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--g-ember-text);
}

/* ---------------------------------- clearance stamp ---------------------------------- */

.gate-stamp {
  position: absolute;
  top: -30px;
  right: -20px;
  width: 130px;
  height: 130px;
  pointer-events: none;
  color: var(--g-ember);
  transform: rotate(-12deg);
  mix-blend-mode: multiply;
  z-index: 2;
}

/* ---------------------------------- focus + motion ---------------------------------- */

.gate button:focus-visible {
  outline: 2px solid var(--g-ember);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: no-preference) {
  .gate-card {
    animation: gate-rise 620ms cubic-bezier(0.22, 1, 0.36, 1) both;
  }

  .gate-cropmark {
    animation: gate-fade 900ms ease 200ms both;
  }

  .gate-stamp {
    animation: gate-stamp-in 560ms cubic-bezier(0.16, 1.3, 0.3, 1) both;
  }
}

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

@keyframes gate-fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 0.55;
  }
}

@keyframes gate-stamp-in {
  0% {
    opacity: 0;
    transform: scale(2.1) rotate(-22deg);
  }
  55% {
    opacity: 1;
    transform: scale(0.95) rotate(-10deg);
  }
  75% {
    transform: scale(1.04) rotate(-13deg);
  }
  100% {
    transform: scale(1) rotate(-12deg);
  }
}

/* ---------------------------------- responsive ---------------------------------- */

@media (max-width: 560px) {
  .gate {
    padding: 20px 16px;
  }

  .gate-card {
    --g-pad: 22px;
  }

  .gate-stamp {
    width: 102px;
    height: 102px;
    top: -22px;
    right: -10px;
  }

  .gate-cropmark {
    display: none;
  }
}