/* start-project page styles — extends assets/theme.css */
body {
  overflow-x: hidden;
  position: relative;
}
#ambient3d {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.68;
}
.sp-nav,
.sp-wrap {
  position: relative;
  z-index: 1;
}
.sp-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px clamp(18px, 4vw, 48px);
  border-bottom: 1px solid var(--line);
  background: var(--glass);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}
.sp-logo {
  font: 600 1rem/1 var(--display);
  letter-spacing: -0.01em;
  color: var(--t1);
}
.sp-logo span {
  color: var(--accent);
}
.sp-back {
  font: 500 0.84rem/1 var(--body);
  color: var(--muted);
}
.sp-back:hover {
  color: var(--t1);
}
.theme-tog {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--glass);
  color: var(--accent);
  cursor: pointer;
}
.theme-tog svg {
  width: 16px;
  height: 16px;
}
.theme-tog .i-sun {
  display: none;
}
:root[data-theme="light"] .theme-tog .i-sun {
  display: block;
}
:root[data-theme="light"] .theme-tog .i-moon {
  display: none;
}

.sp-wrap {
  max-width: 820px;
  margin: 0 auto;
  padding: clamp(28px, 5vw, 56px) clamp(18px, 4vw, 32px) 100px;
}
.sp-kicker {
  display: block;
  font: 500 0.68rem/1 var(--body);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.sp-title {
  font: 300 clamp(1.9rem, 4vw, 2.6rem) / 1.15 var(--display);
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}
.sp-sub {
  color: var(--muted);
  max-width: 56ch;
  margin: 0 0 32px;
}

.sp-bar {
  height: 3px;
  background: var(--line);
  border-radius: 999px;
  margin-bottom: 10px;
  overflow: hidden;
}
.sp-bar i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-dim), var(--accent-soft));
  width: 16%;
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.sp-dots {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 30px;
}
.sp-dots span {
  font: 500 0.64rem/1 var(--body);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid transparent;
}
.sp-dots span.on {
  color: var(--on-accent);
  background: var(--accent);
}
.sp-dots span.done {
  color: var(--accent);
  border-color: var(--line-strong);
}

.sp-panel {
  background: color-mix(in srgb, var(--panel) 90%, transparent);
  backdrop-filter: blur(18px);
  border: 1px solid var(--line-strong);
  border-radius: 20px;
  padding: clamp(20px, 4vw, 36px);
  box-shadow: var(--shadow);
}
.sp-step {
  display: none;
}
.sp-step.on {
  display: block;
  animation: spUp 0.35s ease;
}
@keyframes spUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.sp-step h2 {
  font: 600 1.3rem/1.25 var(--display);
  letter-spacing: -0.01em;
  margin: 0 0 4px;
}
.sp-step .hint {
  color: var(--muted);
  font-size: 0.88rem;
  margin: 0 0 22px;
}

.sp-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.sp-f {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.sp-f.full {
  grid-column: 1/-1;
}
.sp-f label {
  font: 500 0.72rem/1 var(--body);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
}
.sp-f label b {
  color: var(--accent);
  font-weight: 500;
}
.sp-f input,
.sp-f select,
.sp-f textarea {
  width: 100%;
  background: var(--bg-deep);
  border: 1px solid var(--line);
  border-radius: 11px;
  padding: 13px 14px;
  color: var(--text);
  font: 400 0.95rem/1.5 var(--body);
  min-height: 46px;
}
:root[data-theme="light"] .sp-f input,
:root[data-theme="light"] .sp-f select,
:root[data-theme="light"] .sp-f textarea {
  background: var(--surface);
}
.sp-f textarea {
  min-height: 130px;
  resize: vertical;
}
.sp-f input:focus,
.sp-f select:focus,
.sp-f textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(169, 148, 112, 0.16);
}
.sp-f input.bad,
.sp-f textarea.bad {
  border-color: var(--error);
}
.sp-err {
  font-size: 0.76rem;
  color: var(--error);
  min-height: 1em;
}
.sp-note {
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: 10px;
}

.sp-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(168px, 1fr));
  gap: 10px;
}
.sp-c {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 13px 14px;
  border-radius: 12px;
  text-align: left;
  border: 1px solid var(--line);
  background: var(--bg-deep);
  color: var(--t3);
  font: 500 0.86rem/1.3 var(--body);
}
:root[data-theme="light"] .sp-c {
  background: var(--surface);
}
.sp-c i {
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--line-strong);
  flex: 0 0 auto;
}
.sp-c:hover {
  border-color: var(--line-strong);
  color: var(--t1);
}
.sp-c[aria-pressed="true"] {
  border-color: var(--primary);
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--primary-glow), var(--secondary-glow));
}
.sp-c[aria-pressed="true"] i {
  background: var(--primary);
  box-shadow: 0 0 10px var(--primary-glow);
}

.sp-drop {
  border: 1px dashed var(--line-strong);
  border-radius: 12px;
  padding: 16px;
  color: var(--muted);
  font-size: 0.86rem;
}
.sp-drop input {
  margin-top: 10px;
}
.sp-filelist {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  font-size: 0.84rem;
  color: var(--t2);
}
.sp-filelist li {
  padding: 4px 0;
  display: flex;
  justify-content: space-between;
  gap: 10px;
}
.sp-filelist button {
  color: var(--error);
  background: none;
  border: 0;
  cursor: pointer;
  font-size: 0.8rem;
}

.sp-rev dl {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}
.sp-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 14px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
}
.sp-row:last-child {
  border-bottom: 0;
}
.sp-row dt {
  color: var(--muted);
  font: 500 0.68rem/1.6 var(--body);
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.sp-row dd {
  margin: 0;
  color: var(--t2);
  word-break: break-word;
}

.sp-foot {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 26px;
}
.sp-back-step {
  color: var(--muted);
  font: 500 0.88rem/1 var(--body);
}
.sp-back-step:hover {
  color: var(--t1);
}
.sp-spacer {
  flex: 1;
}
.sp-banner {
  margin-top: 14px;
  padding: 11px 14px;
  border-radius: 10px;
  font-size: 0.86rem;
  border: 1px solid;
  display: none;
}
.sp-banner.show {
  display: block;
}
.sp-banner.err {
  color: var(--error);
  border-color: rgba(241, 115, 94, 0.4);
  background: rgba(241, 115, 94, 0.08);
}

.sp-ok {
  text-align: center;
  padding: 20px 4px 10px;
}
.sp-ok .mark {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1px solid var(--primary);
  color: var(--primary);
  font-size: 1.5rem;
  background: radial-gradient(circle, var(--primary-glow), transparent 70%);
}
.sp-ok h2 {
  font: 600 1.5rem/1.25 var(--display);
  margin: 0 0 10px;
}
.sp-ok p {
  color: var(--muted);
  max-width: 46ch;
  margin: 0 auto 6px;
  font-size: 0.94rem;
}
.sp-id {
  display: inline-block;
  margin: 16px 0 22px;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  font: 500 0.8rem/1 var(--body);
  letter-spacing: 0.1em;
  color: var(--accent);
}
.sp-ok .btns {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .sp-grid {
    grid-template-columns: 1fr;
  }
  .sp-row {
    grid-template-columns: 1fr;
    gap: 3px;
  }
}