/* ==========================================================================
   NEXUS-3D — COMPONENTS
   Forms, panels, tables, modals, filters and page-level blocks.
   Depends on the tokens in editorial.css.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. PAGE HEADER (inner pages)
   -------------------------------------------------------------------------- */
.page-head {
  position: relative;
  padding-top: clamp(7.5rem, 14vh, 10rem);
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
  overflow: clip;
}
.page-head__inner { position: relative; z-index: 2; max-width: 52rem; }
.page-head h1 { margin: 1.25rem 0 0; }
.page-head .lede { margin-top: 1.5rem; max-width: 46ch; }

/* --------------------------------------------------------------------------
   2. PANELS
   -------------------------------------------------------------------------- */
.panel {
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-radius: 1.5rem;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  box-shadow: var(--shadow-lift);
}
.panel--flat { box-shadow: none; background: transparent; border-color: var(--line); }
.panel--ink { background: var(--ink); color: var(--bone); border-color: transparent; }
.panel--ink .panel__title, .panel--ink h3 { color: var(--bone); }
.panel__title {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(1.25rem, 2vw, 1.6rem); letter-spacing: -0.015em;
  margin: 0 0 0.35rem;
}
.panel__sub { font-size: 0.875rem; color: var(--ink-mute); margin: 0 0 1.5rem; }

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: clamp(1rem, 2.5vw, 2rem); }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: clamp(1rem, 2.5vw, 2rem); }
.grid-sidebar { display: grid; grid-template-columns: minmax(0, 1fr) 22rem; gap: clamp(1.5rem, 3vw, 2.5rem); align-items: start; }
.stack { display: flex; flex-direction: column; gap: 1rem; }
.stack--lg { gap: 2rem; }
.row { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.row--between { justify-content: space-between; }
.sticky-side { position: sticky; top: 7rem; }

/* --------------------------------------------------------------------------
   3. FORMS
   -------------------------------------------------------------------------- */
.form { display: flex; flex-direction: column; gap: 1.15rem; }
.form-row { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1.15rem; }

.field-group { display: flex; flex-direction: column; gap: 0.45rem; min-width: 0; }
.field-group > label {
  font-family: var(--mono); font-size: 0.625rem; letter-spacing: 0.13em;
  text-transform: uppercase; color: var(--ink-mute);
}
.field-group__hint { font-size: 0.75rem; color: var(--ink-faint); }

.input, .select, .textarea {
  width: 100%;
  padding: 0.85rem 1.05rem;
  background: var(--bone);
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  font-size: 0.9375rem;
  color: var(--ink);
  outline: none;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.panel .input, .panel .select, .panel .textarea { background: var(--bone); }
.input::placeholder, .textarea::placeholder { color: var(--ink-faint); }
.input:focus, .select:focus, .textarea:focus {
  border-color: var(--molten);
  background: var(--paper);
  box-shadow: 0 0 0 3px rgba(210, 67, 27, 0.12);
}
.input[aria-invalid="true"], .textarea[aria-invalid="true"] { border-color: var(--molten); }
.textarea { min-height: 8rem; resize: vertical; line-height: 1.6; }

.select {
  appearance: none;
  padding-right: 2.5rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238B8175' stroke-width='1.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  background-size: 1.1rem;
}

/* Range slider */
.range { -webkit-appearance: none; appearance: none; width: 100%; height: 2px; background: var(--line); border-radius: 99px; outline: none; }
.range::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 1.15rem; height: 1.15rem; border-radius: 99px;
  background: var(--molten); border: 3px solid var(--paper);
  box-shadow: 0 1px 6px rgba(23,20,15,.28); cursor: grab;
  transition: transform 0.25s var(--ease);
}
.range::-webkit-slider-thumb:active { cursor: grabbing; transform: scale(1.15); }
.range::-moz-range-thumb {
  width: 1.15rem; height: 1.15rem; border-radius: 99px;
  background: var(--molten); border: 3px solid var(--paper);
  box-shadow: 0 1px 6px rgba(23,20,15,.28); cursor: grab;
}
.range-head { display: flex; align-items: baseline; justify-content: space-between; }
.range-head b { font-family: var(--mono); font-size: 0.8125rem; font-weight: 500; color: var(--ink); }

/* Radio / checkbox cards */
.choice-grid { display: grid; gap: 0.6rem; }
.choice-grid--2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.choice-grid--3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.choice { position: relative; display: block; cursor: pointer; }
.choice input { position: absolute; opacity: 0; pointer-events: none; }
.choice__body {
  display: flex; flex-direction: column; gap: 0.2rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  background: var(--bone);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease), transform 0.25s var(--ease);
}
.choice__body b { font-size: 0.875rem; font-weight: 500; }
.choice__body span { font-family: var(--mono); font-size: 0.625rem; color: var(--ink-mute); letter-spacing: 0.06em; }
.choice:hover .choice__body { border-color: var(--ink-faint); }
.choice input:checked + .choice__body {
  border-color: var(--molten);
  background: rgba(210, 67, 27, 0.06);
}
.choice input:focus-visible + .choice__body { box-shadow: 0 0 0 3px rgba(210,67,27,.18); }

/* Dropzone */
.dropzone {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.65rem;
  padding: clamp(2rem, 5vw, 3.25rem) 1.5rem;
  border: 1.5px dashed var(--ink-faint);
  border-radius: 1.25rem;
  background: var(--bone);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.dropzone:hover, .dropzone.is-over { border-color: var(--molten); background: rgba(210,67,27,.05); }
.dropzone svg { width: 1.75rem; height: 1.75rem; color: var(--ink-mute); }
.dropzone b { font-family: var(--serif); font-size: 1.25rem; font-weight: 400; }
.dropzone span { font-family: var(--mono); font-size: 0.6875rem; color: var(--ink-mute); }

/* --------------------------------------------------------------------------
   4. BADGES & STATUS
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.25rem 0.65rem; border-radius: 99px;
  font-family: var(--mono); font-size: 0.625rem; letter-spacing: 0.08em;
  text-transform: uppercase; white-space: nowrap;
  border: 1px solid var(--line); color: var(--ink-mute); background: var(--bone);
}
.badge--live    { color: var(--sage);   border-color: rgba(95,115,85,.35);  background: rgba(95,115,85,.09); }
.badge--warn    { color: var(--clay);   border-color: rgba(185,118,74,.4);  background: rgba(185,118,74,.09); }
.badge--hot     { color: var(--molten); border-color: rgba(210,67,27,.35);  background: rgba(210,67,27,.08); }
.badge--muted   { color: var(--ink-faint); }

/* --------------------------------------------------------------------------
   5. FILTERS / SEGMENTED CONTROL
   -------------------------------------------------------------------------- */
.filters { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.filter {
  padding: 0.5rem 1rem; border-radius: 99px;
  border: 1px solid var(--line); background: transparent;
  font-size: 0.8125rem; color: var(--ink-soft);
  transition: all 0.3s var(--ease);
}
.filter:hover { border-color: var(--ink-faint); color: var(--ink); }
.filter.is-active { background: var(--ink); border-color: var(--ink); color: var(--bone); }

/* --------------------------------------------------------------------------
   6. TABS
   -------------------------------------------------------------------------- */
.tabs { display: flex; gap: 1.5rem; border-bottom: 1px solid var(--line); }
.tab {
  position: relative; padding: 0.85rem 0;
  font-size: 0.9375rem; color: var(--ink-mute);
  transition: color 0.3s var(--ease);
}
.tab::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px;
  background: var(--molten); transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.tab:hover { color: var(--ink); }
.tab.is-active { color: var(--ink); }
.tab.is-active::after { transform: scaleX(1); }
.tab-panel[hidden] { display: none; }

/* --------------------------------------------------------------------------
   7. DATA TABLE
   -------------------------------------------------------------------------- */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table { width: 100%; border-collapse: collapse; min-width: 40rem; }
.table th {
  text-align: left; padding: 0 1rem 0.75rem 0;
  font-family: var(--mono); font-size: 0.625rem; letter-spacing: 0.13em;
  text-transform: uppercase; color: var(--ink-faint); font-weight: 500;
  border-bottom: 1px solid var(--line); white-space: nowrap;
}
.table td {
  padding: 1rem 1rem 1rem 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 0.875rem; vertical-align: top;
}
.table tr:last-child td { border-bottom: 0; }
.table tbody tr { transition: background 0.25s var(--ease); }
.table tbody tr:hover { background: rgba(255,255,255,.55); }
.table .num { font-family: var(--mono); font-size: 0.8125rem; white-space: nowrap; }
.table .strong { font-weight: 500; }

/* --------------------------------------------------------------------------
   8. STAT TILES
   -------------------------------------------------------------------------- */
.tiles { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1rem; }
.stat-tile {
  padding: 1.35rem 1.5rem;
  border: 1px solid var(--line-soft);
  border-radius: 1.15rem;
  background: var(--paper);
}
.stat-tile b {
  display: block; font-family: var(--serif); font-weight: 400;
  font-size: clamp(1.6rem, 3vw, 2.35rem); line-height: 1; letter-spacing: -0.025em;
}
.stat-tile span {
  display: block; margin-top: 0.5rem;
  font-family: var(--mono); font-size: 0.625rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ink-mute);
}

/* --------------------------------------------------------------------------
   9. MODAL
   -------------------------------------------------------------------------- */
.modal { position: fixed; inset: 0; z-index: 95; display: grid; place-items: center; padding: 1.25rem; visibility: hidden; }
.modal.is-open { visibility: visible; }
.modal__scrim { position: absolute; inset: 0; background: rgba(23,20,15,.45); backdrop-filter: blur(6px); opacity: 0; transition: opacity 0.4s var(--ease); }
.modal.is-open .modal__scrim { opacity: 1; }
.modal__card {
  position: relative;
  width: min(38rem, 100%);
  max-height: 88vh; overflow-y: auto;
  background: var(--bone);
  border: 1px solid var(--line);
  border-radius: 1.5rem;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  transform: translateY(14px) scale(.98); opacity: 0;
  transition: all 0.45s var(--ease);
}
.modal.is-open .modal__card { transform: none; opacity: 1; }
.modal__close { position: absolute; top: 1.1rem; right: 1.1rem; color: var(--ink-mute); }
.modal__close:hover { color: var(--ink); }
.modal__close svg { width: 1.25rem; height: 1.25rem; }

/* --------------------------------------------------------------------------
   10. ACCORDION
   -------------------------------------------------------------------------- */
.accordion { border-top: 1px solid var(--line); }
.acc-item { border-bottom: 1px solid var(--line); }
.acc-head {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
  padding: 1.35rem 0; text-align: left;
  font-family: var(--serif); font-size: clamp(1.05rem, 1.8vw, 1.35rem); font-weight: 400;
  letter-spacing: -0.01em;
  transition: color 0.3s var(--ease);
}
.acc-head:hover { color: var(--molten); }
.acc-head i {
  position: relative; flex: none; width: 0.85rem; height: 0.85rem;
}
.acc-head i::before, .acc-head i::after {
  content: ''; position: absolute; inset: 50% 0 auto 0; height: 1px;
  background: currentColor; transition: transform 0.4s var(--ease);
}
.acc-head i::after { transform: rotate(90deg); }
.acc-item.is-open .acc-head i::after { transform: rotate(0deg); }
.acc-body { overflow: hidden; height: 0; transition: height 0.45s var(--ease); }
.acc-body > div { padding-bottom: 1.5rem; }

/* --------------------------------------------------------------------------
   11. EMPTY / LOADING STATES
   -------------------------------------------------------------------------- */
.empty {
  padding: clamp(2.5rem, 6vw, 4.5rem) 1.5rem;
  text-align: center; color: var(--ink-mute);
  border: 1px dashed var(--line); border-radius: 1.25rem;
}
.empty b { display: block; font-family: var(--serif); font-size: 1.35rem; font-weight: 400; color: var(--ink); margin-bottom: 0.4rem; }
.empty p { margin: 0; font-size: 0.875rem; }

.skeleton {
  border-radius: 0.75rem;
  background: linear-gradient(90deg, var(--bone-deep) 25%, rgba(255,255,255,.65) 50%, var(--bone-deep) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s linear infinite;
}
@keyframes shimmer { to { background-position: -200% 0; } }

/* --------------------------------------------------------------------------
   12. AUTH LAYOUT
   -------------------------------------------------------------------------- */
.auth-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: clamp(2rem, 5vw, 5rem); align-items: center; min-height: 70vh; }
.auth-card { width: min(26rem, 100%); }
.auth-aside { position: relative; }
.auth-aside blockquote {
  margin: 0; font-family: var(--serif); font-weight: 400;
  font-size: clamp(1.5rem, 2.8vw, 2.4rem); line-height: 1.15; letter-spacing: -0.02em;
}
.auth-aside figcaption { margin-top: 1.5rem; font-family: var(--mono); font-size: 0.6875rem; color: var(--ink-mute); }

/* --------------------------------------------------------------------------
   13. CHAT (AI designer)
   -------------------------------------------------------------------------- */
.chat { display: flex; flex-direction: column; height: min(70vh, 40rem); }
.chat__stream { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 1rem; padding-right: 0.5rem; }
.bubble { max-width: 88%; padding: 0.9rem 1.15rem; border-radius: 1.15rem; font-size: 0.9375rem; line-height: 1.6; }
.bubble--bot { align-self: flex-start; background: var(--paper); border: 1px solid var(--line-soft); border-bottom-left-radius: 0.35rem; }
.bubble--me { align-self: flex-end; background: var(--ink); color: var(--bone); border-bottom-right-radius: 0.35rem; }
.bubble--note { align-self: center; background: transparent; border: 1px dashed var(--line); color: var(--ink-mute); font-family: var(--mono); font-size: 0.6875rem; }
.chat__form { display: flex; gap: 0.6rem; padding-top: 1rem; border-top: 1px solid var(--line); margin-top: 1rem; }
.typing { display: inline-flex; gap: 4px; }
.typing i { width: 5px; height: 5px; border-radius: 99px; background: var(--ink-faint); animation: blink 1.2s infinite; }
.typing i:nth-child(2) { animation-delay: .2s; }
.typing i:nth-child(3) { animation-delay: .4s; }
@keyframes blink { 0%, 60%, 100% { opacity: .25; } 30% { opacity: 1; } }

/* --------------------------------------------------------------------------
   14. VIEWER FRAME (quote / AI designer 3D canvas)
   -------------------------------------------------------------------------- */
.viewer {
  position: relative;
  border-radius: 1.5rem;
  overflow: hidden;
  background: linear-gradient(165deg, var(--bone-deep), var(--bone));
  border: 1px solid var(--line-soft);
  min-height: 22rem;
}
.viewer canvas { display: block; width: 100%; height: 100%; }
.viewer__hud {
  position: absolute; left: 1rem; right: 1rem; bottom: 1rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0.7rem 1rem;
  background: rgba(251, 248, 243, .82);
  backdrop-filter: blur(12px);
  border: 1px solid var(--line-soft);
  border-radius: 0.9rem;
  font-family: var(--mono); font-size: 0.6875rem; color: var(--ink-soft);
}
.viewer__empty {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.5rem;
  color: var(--ink-mute); text-align: center; padding: 2rem;
}

/* --------------------------------------------------------------------------
   15. PRICE SUMMARY
   -------------------------------------------------------------------------- */
.summary { display: flex; flex-direction: column; gap: 0.7rem; }
.summary__row { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; font-size: 0.875rem; color: var(--ink-soft); }
.summary__row b { font-family: var(--mono); font-size: 0.8125rem; font-weight: 500; color: var(--ink); }
.summary__total {
  display: flex; align-items: baseline; justify-content: space-between;
  padding-top: 1rem; margin-top: 0.35rem; border-top: 1px solid var(--line);
}
.summary__total span { font-size: 0.875rem; color: var(--ink-soft); }
.summary__total b { font-family: var(--serif); font-size: clamp(1.85rem, 3.2vw, 2.5rem); font-weight: 400; letter-spacing: -0.025em; }

/* --------------------------------------------------------------------------
   16. RESPONSIVE
   -------------------------------------------------------------------------- */
@media (max-width: 1080px) {
  .grid-sidebar { grid-template-columns: 1fr; }
  .sticky-side { position: static; }
  .tiles { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .auth-grid { grid-template-columns: 1fr; min-height: 0; gap: 3rem; }
  .auth-aside { order: -1; }
  .grid-3 { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 720px) {
  .form-row, .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .choice-grid--3, .choice-grid--2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .tiles { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 0.6rem; }
  .stat-tile { padding: 1rem 1.1rem; }
  .tabs { gap: 1rem; overflow-x: auto; scrollbar-width: none; }
  .tabs::-webkit-scrollbar { display: none; }
  .tab { white-space: nowrap; }
}