/* =========================================================
   ValuMatrix · shared base v2
   - 4 themes: dark / light(Apple-blue) / sepia / glass
   - iOS-style segmented pill controls
   - shared .chip palette (used by home module cards)
   - shared card-enter animation utilities
   ========================================================= */

/* ---------- DARK (default) ---------- */
:root,
:root[data-theme="dark"] {
  --bg:           #0A1018;
  --bg-grid:      #0C131C;
  --panel:        #0F1620;
  --panel-hi:     #131C28;
  --line:         #1B2532;
  --line-soft:    #141C27;
  --ink:          #E6EEF7;
  --ink-dim:      #8A96A5;
  --ink-mute:     #54616F;

  --cyan:         #5DE5FF;
  --cyan-rgb:     93,229,255;
  --cyan-soft:    #2BA8C2;
  --gold:         #E8C16B;
  --gold-rgb:     232,193,107;
  --green:        #5DE0A8;
  --green-rgb:    93,224,168;
  --red:          #FF6B6B;

  --shadow-strong: rgba(0,0,0,.5);
  --shadow-soft:   rgba(0,0,0,.35);
  --glow-mult:     1;

  --hero-grad:  linear-gradient(180deg, #FFFFFF 0%, #8FB7C6 130%);
  --brand-grad: linear-gradient(135deg, #5DE5FF 0%, #2A6FE0 100%);
  --pulse-grad: linear-gradient(180deg, #5DE5FF 0%, rgba(93,229,255,.15) 100%);

  --body-extra-bg: none;
}

/* ---------- LIGHT · Apple-inspired clean (Apple Blue accent) ---------- */
:root[data-theme="light"] {
  --bg:           #F9FAFB;
  --bg-grid:      #EEF1F5;
  --panel:        #FFFFFF;
  --panel-hi:     #F4F6F9;
  --line:         #E5E7EB;
  --line-soft:    #EFF1F4;
  --ink:          #111827;
  --ink-dim:      #4B5563;
  --ink-mute:     #9AA3AF;

  --cyan:         #0071E3;        /* Apple Blue */
  --cyan-rgb:     0,113,227;
  --cyan-soft:    #0058B0;
  --gold:         #B8860B;
  --gold-rgb:     184,134,11;
  --green:        #047857;
  --green-rgb:    4,120,87;
  --red:          #DC2626;

  --shadow-strong: rgba(17,24,39,.08);
  --shadow-soft:   rgba(17,24,39,.05);
  --glow-mult:     .55;

  --hero-grad:  linear-gradient(180deg, #111827 0%, #4B5563 130%);
  --brand-grad: linear-gradient(135deg, #0071E3 0%, #1D4ED8 100%);
  --pulse-grad: linear-gradient(180deg, #0071E3 0%, rgba(0,113,227,.12) 100%);

  --body-extra-bg: none;
}

/* ---------- SEPIA · warm cream paper ---------- */
:root[data-theme="sepia"] {
  --bg:           #F4ECD8;
  --bg-grid:      #EBE0BD;
  --panel:        #FBF6E9;
  --panel-hi:     #F5EBC7;
  --line:         #E0CFA4;
  --line-soft:    #EBDDB8;
  --ink:          #3A2F1B;
  --ink-dim:      #6B5A3F;
  --ink-mute:     #9A8A6F;

  --cyan:         #B8530F;        /* burnt orange — primary */
  --cyan-rgb:     184,83,15;
  --cyan-soft:    #8B3A0A;
  --gold:         #8A6517;        /* deep gold */
  --gold-rgb:     138,101,23;
  --green:        #5C7A4F;        /* sage */
  --green-rgb:    92,122,79;
  --red:          #B43A3A;

  --shadow-strong: rgba(90,60,20,.13);
  --shadow-soft:   rgba(90,60,20,.06);
  --glow-mult:     .5;

  --hero-grad:  linear-gradient(180deg, #3A2F1B 0%, #6B5A3F 130%);
  --brand-grad: linear-gradient(135deg, #B8530F 0%, #6B4014 100%);
  --pulse-grad: linear-gradient(180deg, #B8530F 0%, rgba(184,83,15,.15) 100%);

  --body-extra-bg: none;
}

/* ---------- GLASS · frosted aurora ---------- */
:root[data-theme="glass"] {
  --bg:           #060A1A;
  --bg-grid:      transparent;
  --panel:        rgba(255,255,255,.05);
  --panel-hi:     rgba(255,255,255,.08);
  --line:         rgba(255,255,255,.13);
  --line-soft:    rgba(255,255,255,.07);
  --ink:          #FFFFFF;
  --ink-dim:      rgba(255,255,255,.72);
  --ink-mute:     rgba(255,255,255,.45);

  --cyan:         #5DE5FF;
  --cyan-rgb:     93,229,255;
  --cyan-soft:    #2BA8C2;
  --gold:         #FFD66B;
  --gold-rgb:     255,214,107;
  --green:        #6BE7B2;
  --green-rgb:    107,231,178;
  --red:          #FF6B8A;

  --shadow-strong: rgba(0,0,0,.55);
  --shadow-soft:   rgba(0,0,0,.35);
  --glow-mult:     1.1;

  --hero-grad:  linear-gradient(180deg, #FFFFFF 0%, #BFE4FF 130%);
  --brand-grad: linear-gradient(135deg, #5DE5FF 0%, #7C3AED 100%);
  --pulse-grad: linear-gradient(180deg, #5DE5FF 0%, rgba(93,229,255,.15) 100%);

  /* aurora blobs */
  --body-extra-bg:
    radial-gradient(45% 60% at 12% 8%,  rgba(93,229,255,.30)  0%, transparent 60%),
    radial-gradient(40% 50% at 88% 92%, rgba(124,58,237,.32)  0%, transparent 60%),
    radial-gradient(35% 45% at 78% 12%, rgba(236,72,153,.18)  0%, transparent 60%);
}

/* ---------- CONSTANTS ---------- */
:root {
  --sans: "Inter", "Space Grotesk", system-ui, -apple-system,
          "HarmonyOS Sans SC", "PingFang SC", "Noto Sans SC",
          "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  --mono: "JetBrains Mono", "Fira Code", ui-monospace, SFMono-Regular, Menlo, monospace;
  --zh-sans: "HarmonyOS Sans SC", "PingFang SC", "Noto Sans SC",
             "Microsoft YaHei", "Hiragino Sans GB", sans-serif;

  --r: 14px;
  --pad: 22px;
  --t-fast:  .18s ease;
  --t-card:  .3s cubic-bezier(.2,.7,.2,1);
  --t-theme: .35s ease;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background-color: var(--bg);
  background-image:
    var(--body-extra-bg, none),
    linear-gradient(var(--bg-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px);
  background-size: auto, 56px 56px, 56px 56px;
  background-position: 0 0, -1px -1px, -1px -1px;
  background-attachment: fixed, scroll, scroll;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color var(--t-theme), color var(--t-theme);
}

.shell { max-width: 1320px; margin: 0 auto; padding: 28px 32px 64px; }

/* ----------- TOPBAR ----------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px;
  padding: 12px 16px; margin-bottom: 22px;
  border: 1px solid var(--line); border-radius: 12px;
  background: rgba(15,22,32,.7); backdrop-filter: blur(10px);
  transition: background-color var(--t-theme), border-color var(--t-theme);
}
[data-theme="light"] .topbar {
  background: rgba(255,255,255,.78);
  box-shadow: 0 1px 0 rgba(17,24,39,.04);
}
[data-theme="sepia"] .topbar {
  background: rgba(251,246,233,.82);
  box-shadow: 0 1px 0 rgba(90,60,20,.05);
}
[data-theme="glass"] .topbar {
  background: rgba(255,255,255,.06);
  backdrop-filter: blur(20px) saturate(160%);
  border-color: rgba(255,255,255,.14);
}

.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: .02em;
         color: var(--ink); text-decoration: none; }
.brand-version {
  font-family: var(--mono); font-size: 9.5px; font-weight: 500;
  letter-spacing: .14em;
  padding: 2px 6px; border-radius: 3px;
  border: 1px solid rgba(var(--cyan-rgb),.4);
  color: var(--cyan);
  margin-left: 2px;
  line-height: 1;
  text-transform: uppercase;
}
.brand-mark {
  width: 22px; height: 22px; border-radius: 5px;
  background: var(--brand-grad);
  box-shadow: 0 0 18px rgba(var(--cyan-rgb),.45);
  transition: box-shadow var(--t-theme), background var(--t-theme);
}
[data-theme="light"] .brand-mark { box-shadow: 0 4px 12px rgba(0,113,227,.28); }
[data-theme="sepia"] .brand-mark { box-shadow: 0 4px 12px rgba(184,83,15,.22); }

.nav { display: flex; gap: 18px; font-family: var(--mono); font-size: 12px; color: var(--ink-dim);
       flex: 0 1 auto; }
.nav a { color: inherit; text-decoration: none; transition: color var(--t-fast); }
.nav a:hover, .nav a.active { color: var(--cyan); }

.status-pill {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 12px; color: var(--ink-dim);
  padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px;
  transition: border-color var(--t-theme), color var(--t-theme);
}
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green);
       box-shadow: 0 0 8px var(--green); animation: blink 2.2s infinite; }
@keyframes blink { 0%,60%,100%{opacity:1} 80%{opacity:.35} }

.back {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 12px; color: var(--ink-dim);
  text-decoration: none; padding: 6px 12px;
  border: 1px solid var(--line); border-radius: 999px;
  transition: all var(--t-fast);
}
.back:hover { color: var(--cyan); border-color: rgba(var(--cyan-rgb),.45); }
.back span { font-size: 14px; }

/* ----------- iOS-STYLE SEGMENTED PILL (theme + lang) ----------- */
.vm-controls { display: inline-flex; gap: 8px; align-items: center; }
.vm-seg {
  display: inline-flex; align-items: center;
  padding: 3px;
  background: var(--panel-hi);
  border: 1px solid var(--line);
  border-radius: 999px;
  position: relative;
  transition: background-color var(--t-theme), border-color var(--t-theme);
}
[data-theme="glass"] .vm-seg {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.14);
}
.vm-seg button {
  position: relative; z-index: 1;
  background: transparent; border: 0;
  padding: 5px 10px;
  min-width: 28px; height: 24px;
  border-radius: 999px;
  color: var(--ink-mute);
  font-family: var(--mono); font-size: 12px;
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: color .25s ease;
}
.vm-seg button:hover { color: var(--ink-dim); }
.vm-seg button[aria-pressed="true"] { color: var(--ink); }
.vm-seg button svg { width: 13px; height: 13px; }

/* sliding active background indicator */
.vm-seg .vm-seg-thumb {
  position: absolute; top: 3px; bottom: 3px;
  background: var(--bg);
  border-radius: 999px;
  box-shadow: 0 1px 2px var(--shadow-soft), 0 0 0 1px var(--line-soft) inset;
  transition: left .32s cubic-bezier(.4,.0,.2,1), width .32s cubic-bezier(.4,.0,.2,1);
  z-index: 0;
}
[data-theme="glass"] .vm-seg .vm-seg-thumb {
  background: rgba(255,255,255,.18);
  box-shadow: 0 1px 4px rgba(0,0,0,.25), 0 0 0 1px rgba(255,255,255,.2) inset;
}

/* ----------- CARD BASE ----------- */
.card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: var(--pad);
  overflow: hidden;
  cursor: pointer;
  transition:
    transform var(--t-card),
    box-shadow var(--t-card),
    border-color var(--t-card),
    background-color var(--t-theme),
    color var(--t-theme);
  will-change: transform;
}
[data-theme="light"] .card { box-shadow: 0 1px 2px rgba(17,24,39,.04); }
[data-theme="sepia"] .card { box-shadow: 0 1px 2px rgba(90,60,20,.05); }
[data-theme="glass"] .card {
  backdrop-filter: blur(22px) saturate(170%);
  -webkit-backdrop-filter: blur(22px) saturate(170%);
  box-shadow: 0 8px 32px rgba(0,0,0,.18);
}

.card::before {
  content: "";
  position: absolute; inset: 0;
  border-radius: inherit;
  pointer-events: none;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.03);
}
[data-theme="light"] .card::before { box-shadow: inset 0 1px 0 rgba(255,255,255,.6); }
[data-theme="glass"] .card::before { box-shadow: inset 0 1px 0 rgba(255,255,255,.18); }

.card:not(.no-hover):hover {
  transform: translateY(-5px);
  border-color: rgba(var(--cyan-rgb), .45);
  box-shadow:
    0 0 0 1px rgba(var(--cyan-rgb), .22),
    0 12px 30px var(--shadow-strong),
    0 0 36px rgba(var(--cyan-rgb), calc(.18 * var(--glow-mult)));
}
.card.hover-gd:hover {
  border-color: rgba(var(--gold-rgb), .45);
  box-shadow:
    0 0 0 1px rgba(var(--gold-rgb), .22),
    0 12px 30px var(--shadow-strong),
    0 0 36px rgba(var(--gold-rgb), calc(.16 * var(--glow-mult)));
}
.card.hover-gn:hover {
  border-color: rgba(var(--green-rgb), .45);
  box-shadow:
    0 0 0 1px rgba(var(--green-rgb), .22),
    0 12px 30px var(--shadow-strong),
    0 0 36px rgba(var(--green-rgb), calc(.16 * var(--glow-mult)));
}

/* ----------- TYPOGRAPHY ----------- */
.label {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--ink-mute);
}
.corner {
  position: absolute; top: 14px; right: 16px;
  font-family: var(--mono); font-size: 10px; color: var(--ink-mute);
  letter-spacing: .12em;
}
/* mono-aux: console-style auxiliary text (V5) */
.mono-aux {
  font-family: var(--mono) !important;
  font-size: 10px !important;
  letter-spacing: .16em !important;
  opacity: .4 !important;
  text-transform: uppercase !important;
  color: var(--ink-mute) !important;
}
.h1, .h2, .h3 { margin: 0; font-weight: 600; letter-spacing: -.01em; }
.h1 { font-size: clamp(40px, 6vw, 72px); line-height: 1.1; letter-spacing: -.03em; font-weight: 700; }
.h2 { font-size: 22px; line-height: 1.15; }
.h3 { font-size: 15px; }
.muted { color: var(--ink-dim); }
.mono { font-family: var(--mono); }

/* ----------- BUTTONS / TAGS ----------- */
.tag {
  font-family: var(--mono); font-size: 11px; letter-spacing: .08em;
  padding: 5px 10px; border: 1px solid var(--line); border-radius: 999px;
  color: var(--ink-dim);
}
.tag.cy { color: var(--cyan); border-color: rgba(var(--cyan-rgb), .35); }
.tag.gd { color: var(--gold); border-color: rgba(var(--gold-rgb), .35); }
.tag.gn { color: var(--green); border-color: rgba(var(--green-rgb), .35); }

.btn {
  font-family: var(--mono); font-size: 12px; letter-spacing: .1em;
  padding: 10px 16px; border-radius: 8px; cursor: pointer;
  text-decoration: none; display: inline-flex; align-items: center; gap: 8px;
  transition: all var(--t-fast); border: 1px solid var(--line);
  color: var(--ink); background: transparent;
}
.btn.primary { background: var(--cyan); color: #07111A; border-color: var(--cyan); }
[data-theme="light"] .btn.primary,
[data-theme="sepia"] .btn.primary { color: #FFFFFF; }
.btn.primary:hover { box-shadow: 0 0 22px rgba(var(--cyan-rgb),.55); }
.btn.ghost:hover { border-color: var(--cyan); color: var(--cyan); }

/* ----------- FOOTER NOTE ----------- */
.foot {
  margin-top: 18px; display: flex; justify-content: space-between;
  font-family: var(--mono); font-size: 11px; color: var(--ink-mute); letter-spacing: .12em;
}

/* ============================================================
   CHIPS · harmonious floating mini-cards (used on home module cards)
   ============================================================ */
.chip-cloud {
  flex: 1; min-height: 0;
  display: flex; flex-wrap: wrap;
  align-content: flex-start;
  gap: 7px 7px;
  padding: 6px 0;
  position: relative;
}
.chip {
  --c: 200,200,200;
  font-family: var(--mono); font-size: 11px;
  color: var(--ink);
  background: rgba(var(--c), .12);
  border: 1px solid rgba(var(--c), .35);
  padding: 5px 10px 5px 8px;
  border-radius: 999px;
  display: inline-flex; align-items: center; gap: 7px;
  white-space: nowrap;
  cursor: default;
  transform: translateY(0);
  animation: chip-bob var(--dur, 5s) ease-in-out infinite var(--delay, 0s);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.chip::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%;
  background: rgb(var(--c));
  box-shadow: 0 0 8px rgba(var(--c), .8);
  flex: none;
}
.chip:hover {
  transform: translateY(-3px) scale(1.04);
  border-color: rgba(var(--c), .65);
  box-shadow: 0 5px 14px rgba(var(--c), .35);
}
@keyframes chip-bob {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-4px); }
}

/* card-entrance utility (used by vm-anim staggerIn) */
.fade-up {
  opacity: 0; transform: translateY(10px);
  transition: opacity .55s ease, transform .55s cubic-bezier(.2,.7,.2,1);
}
.fade-up.in {
  opacity: 1; transform: translateY(0);
}

/* mod-particles (canvas overlay for sub-page heroes) */
.mod-particles {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  pointer-events: none; z-index: 0;
  opacity: .85;
}
[data-theme="light"] .mod-particles,
[data-theme="sepia"] .mod-particles { opacity: .5; }

/* ----------- MOBILE ----------- */
@media (max-width: 960px) {
  .shell { padding: 20px 16px 48px; }
  .topbar { flex-wrap: wrap; gap: 10px; }
  .nav { order: 3; width: 100%; justify-content: space-between; gap: 8px; }
  .vm-controls { order: 2; }
}

/* ============ TOOL DETAIL MODAL (V5) ============ */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(7, 12, 20, .6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease;
}
.modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}
.modal-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px 32px;
  max-width: 520px; width: 90%;
  position: relative;
  box-shadow: 0 8px 40px var(--shadow-strong), 0 0 60px rgba(var(--cyan-rgb), calc(.1 * var(--glow-mult)));
  transform: translateY(16px) scale(.97);
  transition: transform .3s cubic-bezier(.2,.7,.2,1);
}
.modal-backdrop.open .modal-card {
  transform: translateY(0) scale(1);
}
.modal-close {
  position: absolute; top: 16px; right: 16px;
  background: none; border: 1px solid var(--line); border-radius: 8px;
  color: var(--ink-mute); font-size: 18px; width: 32px; height: 32px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: background .2s, color .2s;
}
.modal-close:hover { background: rgba(var(--cyan-rgb),.1); color: var(--cyan); }
.modal-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  margin-bottom: 18px; gap: 12px; flex-wrap: wrap;
}
.modal-name {
  font-family: var(--mono); font-size: 18px; font-weight: 600;
  color: var(--ink); letter-spacing: -.01em;
}
.modal-version {
  font-family: var(--mono); font-size: 11px; color: var(--ink-mute);
  letter-spacing: .1em; margin-left: 8px;
  background: var(--panel-hi); padding: 2px 8px; border-radius: 4px;
}
.modal-status { display: flex; align-items: center; gap: 6px; }
.modal-status-dot {
  width: 7px; height: 7px; border-radius: 50%;
}
.modal-status-dot.active { background: var(--green); box-shadow: 0 0 8px var(--green); }
.modal-status-dot.beta  { background: var(--gold); box-shadow: 0 0 8px var(--gold); }
.modal-status-text {
  font-family: var(--mono); font-size: 11px; color: var(--ink-mute);
  letter-spacing: .1em;
}
.modal-body { display: flex; flex-direction: column; gap: 16px; }
.modal-section { display: flex; flex-direction: column; gap: 6px; }
.modal-label {
  font-family: var(--mono); font-size: 10px; color: var(--cyan);
  letter-spacing: .16em; text-transform: uppercase; opacity: .7;
}
.modal-pain {
  font-size: 13.5px; color: var(--ink); line-height: 1.6;
  padding: 10px 14px;
  background: rgba(var(--cyan-rgb), .06);
  border-left: 3px solid var(--cyan);
  border-radius: 0 6px 6px 0;
}
.modal-desc-text {
  font-size: 12.5px; color: var(--ink-dim); line-height: 1.6;
}
.modal-meta {
  display: flex; gap: 16px; flex-wrap: wrap;
  padding-top: 12px; border-top: 1px dashed var(--line-soft);
}
.modal-meta-item {
  font-family: var(--mono); font-size: 11px; color: var(--ink-mute);
  letter-spacing: .08em;
}
.modal-actions {
  margin-top: 18px; display: flex; gap: 10px;
}
.modal-launch {
  font-family: var(--mono); font-size: 13px; letter-spacing: .08em;
  padding: 10px 22px; border-radius: 8px;
  background: var(--cyan); color: #07111A; border: none;
  font-weight: 600; cursor: pointer;
  transition: filter .2s, transform .15s;
}
.modal-launch:hover { filter: brightness(1.1); transform: translateY(-1px); }
[data-theme="light"] .modal-card { box-shadow: 0 8px 40px rgba(17,24,39,.1); }