/* ====================================================================
   Screen Studio — page styles.
   Uses the global design tokens defined in styles.css (--bone, --sumi,
   --akane, --display, --serif, --mono, --rule, --gutter, ...). Square
   corners, crimson primary action, mono editorial labels: matches the
   Resonic Studio house style.
   ==================================================================== */

.page-screen-studio {
  background: var(--bone);
  color: var(--sumi);
}

.ss-shell {
  position: relative;
  z-index: 2;
  max-width: 880px;
  margin: 0 auto;
  padding: clamp(40px, 8vh, 88px) var(--gutter) clamp(64px, 12vh, 140px);
}

/* --- brand / header --- */
.ss-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--sumi);
  text-decoration: none;
  transition: opacity 0.25s ease;
}
.ss-brand:hover {
  opacity: 0.7;
}
.ss-brand__mark {
  width: 32px;
  height: 32px;
  object-fit: contain;
  display: block;
}
.ss-brand__txt {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.ss-brand__name {
  font-family: var(--display);
  font-style: italic;
  font-weight: 700;
  font-size: 20px;
}
.ss-brand__sub {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--pencil);
}

/* --- intro --- */
.ss-intro {
  margin-top: clamp(32px, 6vh, 56px);
}
.ss-title {
  margin: 0;
  font-family: var(--display);
  font-style: italic;
  font-weight: 800;
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  line-height: 1;
  letter-spacing: -0.02em;
}
.ss-lede {
  margin: 14px 0 0;
  max-width: 38ch;
  font-family: var(--serif);
  font-size: var(--fs-lede, 21px);
  color: var(--sumi-soft);
}

/* --- panels --- */
.ss-panel {
  margin-top: clamp(32px, 5vh, 48px);
  padding-top: clamp(28px, 4vh, 40px);
  border-top: 0.5px solid var(--rule-soft);
}
.ss-panel__label {
  margin: 0 0 16px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--akane);
}

/* --- buttons (mirrors .btn-primary / .btn-quiet) --- */
.ss-btn {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 18px 32px;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--sumi);
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}
.ss-btn:hover:not(:disabled) {
  border-color: var(--akane);
  color: var(--akane);
}
.ss-btn--primary {
  border-color: var(--akane);
  background: var(--akane);
  color: var(--bone);
  box-shadow: 0 8px 22px -8px rgba(179, 36, 25, 0.45);
}
.ss-btn--primary:hover:not(:disabled) {
  background: var(--akane-deep);
  border-color: var(--akane-deep);
  color: var(--bone);
}
.ss-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
/* Pulsing CTA: draws the eye to "Connect keyboard" until the user clicks it.
   Animates the shadow ring and a subtle background sheen; respects users
   who set prefers-reduced-motion. */
@keyframes ss-btn-pulse {
  0%,
  100% {
    box-shadow: 0 8px 22px -8px rgba(179, 36, 25, 0.45),
      0 0 0 0 rgba(179, 36, 25, 0.55);
  }
  50% {
    box-shadow: 0 8px 22px -8px rgba(179, 36, 25, 0.45),
      0 0 0 14px rgba(179, 36, 25, 0);
  }
}
.ss-btn--pulse:not(:disabled) {
  animation: ss-btn-pulse 1.6s ease-out infinite;
}
@media (prefers-reduced-motion: reduce) {
  .ss-btn--pulse {
    animation: none;
  }
}
.ss-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* --- slot cards --- */
.ss-slots {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.ss-slot {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px;
  border: 1px solid var(--rule);
  background: rgba(244, 238, 224, 0.4);
}
.ss-slot--on {
  border-color: var(--akane);
}
.ss-slot__label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--pencil);
}
.ss-slot__img {
  font-family: var(--serif);
  font-size: 15px;
  color: var(--sumi);
  word-break: break-all;
}

/* --- upload controls --- */
.ss-file {
  display: block;
  width: 100%;
  margin-bottom: 8px;
  font-family: var(--serif);
  font-size: 15px;
  color: var(--sumi-soft);
}
.ss-hint {
  margin: 0 0 18px;
  font-family: var(--serif);
  font-size: 13px;
  color: var(--pencil);
}
.ss-filename {
  margin: 0 0 18px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--sumi);
  word-break: break-all;
}
.ss-radios {
  display: flex;
  gap: 24px;
  margin-bottom: 20px;
}
.ss-radio {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-family: var(--serif);
  font-size: 15px;
  color: var(--sumi);
}
.ss-radio input {
  accent-color: var(--akane);
}

/* --- fit + position controls --- */
.ss-sublabel {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--pencil);
}
.ss-grid {
  display: grid;
  grid-template-columns: repeat(3, 30px);
  grid-template-rows: repeat(3, 30px);
  gap: 4px;
  margin-bottom: 20px;
}
.ss-grid__cell {
  width: 30px;
  height: 30px;
  padding: 0;
  border: 1px solid var(--rule);
  background: rgba(244, 238, 224, 0.4);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.ss-grid__cell:hover {
  border-color: var(--akane);
}
.ss-grid__cell--on {
  background: var(--akane);
  border-color: var(--akane);
}

/* --- status line --- */
.ss-status {
  margin-top: 24px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--sumi-soft);
}
.ss-status--error {
  color: var(--akane);
}

/* --- upload progress bar --- */
.ss-progress {
  margin-top: 14px;
  height: 6px;
  border: 1px solid var(--rule);
  background: rgba(244, 238, 224, 0.4);
}
.ss-progress__fill {
  height: 100%;
  background: var(--akane);
  transition: width 0.18s ease;
}

/* --- footer --- */
.ss-foot {
  display: flex;
  gap: 24px;
  margin-top: clamp(48px, 9vh, 96px);
  padding-top: 24px;
  border-top: 0.5px solid var(--rule-soft);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.ss-foot a {
  color: var(--pencil);
  text-decoration: none;
  transition: color 0.2s ease;
}
.ss-foot a:hover {
  color: var(--akane);
}