/* ============================================================
   Sublime LMS — Platform Overview page styles
   Extends site.css with page-specific motifs:
   · Central platform diagram
   · Comparison panels (broken vs connected)
   · Six-pillar radial system
   · Signal flow timeline
   · Recovery path
   · Workspace cards
   ============================================================ */

/* ============================================================
   HERO — central dashboard + orbiting modules
   ============================================================ */
.pl-hero {
  position: relative;
  padding: 64px 0 96px;
  overflow: hidden;
  isolation: isolate;
}
.pl-hero-field {
  position: absolute; inset: 0; z-index: -1;
  background: var(--gradient-pulsefield);
}
.pl-hero-dots {
  position: absolute; inset: 0; z-index: -1;
  background-image: radial-gradient(rgba(17,24,39,0.045) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(to bottom, transparent, black 18%, black 70%, transparent);
}

.pl-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.15fr);
  gap: 56px;
  align-items: center;
  padding-top: 24px;
}

.pl-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(40px, 5.2vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin: 14px 0 22px;
  text-wrap: balance;
}
.pl-hero p.lede {
  font-size: 18px; line-height: 1.6;
  color: var(--fg-body);
  margin-bottom: 28px;
  max-width: 560px;
}
.pl-hero-bullets {
  list-style: none; padding: 0; margin: 28px 0 0;
  display: flex; gap: 18px 28px; flex-wrap: wrap;
}
.pl-hero-bullets li {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--fg-body); font-weight: 500;
}
.pl-hero-bullets i { width: 16px; height: 16px; }

/* ----- system diagram ----- */
.system-diagram {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 620px;
  margin: 0 auto;
}

.sd-svg {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  z-index: 1;
}
.sd-svg path { fill: none; stroke-linecap: round; }
.sd-svg .sd-orbit {
  stroke: rgba(109, 40, 217, 0.10);
  stroke-width: 1.5;
  stroke-dasharray: 3 6;
}
.sd-svg .sd-link {
  stroke-width: 1.6;
  stroke-dasharray: 4 6;
  animation: sd-dash 22s linear infinite;
}
@keyframes sd-dash { to { stroke-dashoffset: -200; } }

.sd-center {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 200px; height: 200px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--color-violet-200);
  box-shadow: var(--shadow-lg), 0 0 0 12px rgba(167, 139, 250, .06);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
  z-index: 5;
}
.sd-center::before {
  content: '';
  position: absolute; inset: -28px;
  border-radius: 50%;
  border: 1px solid rgba(139, 92, 246, .12);
  pointer-events: none;
}
.sd-center::after {
  content: '';
  position: absolute; inset: -52px;
  border-radius: 50%;
  border: 1px dashed rgba(139, 92, 246, .08);
  pointer-events: none;
  animation: sd-spin 60s linear infinite;
}
@keyframes sd-spin { to { transform: rotate(360deg); } }

.sd-center-star {
  width: 44px; height: 44px; border-radius: 14px;
  display: grid; place-items: center;
  background: var(--gradient-ai-primary);
  color: #fff;
  box-shadow: var(--shadow-violet-soft);
  margin-bottom: 10px;
}
.sd-center-star i { width: 22px; height: 22px; }
.sd-center-lbl {
  font-size: 11px; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--color-violet-700);
}
.sd-center-ttl {
  font-family: var(--font-display);
  font-size: 17px; font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.01em;
  margin-top: 2px;
  text-wrap: balance;
  padding: 0 18px;
}
.sd-center-sub {
  font-size: 11px; color: var(--fg-muted);
  margin-top: 6px;
}

/* orbiting module nodes */
.sd-node {
  position: absolute;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 10px 14px 10px 12px;
  display: flex; align-items: center; gap: 10px;
  box-shadow: var(--shadow-md);
  z-index: 4;
  min-width: 158px;
  transform: translate(-50%, -50%);
  animation: sd-float 6s ease-in-out infinite;
}
.sd-node .sd-ico {
  width: 32px; height: 32px; border-radius: 9px;
  display: grid; place-items: center;
  flex-shrink: 0;
}
.sd-node .sd-ico i { width: 16px; height: 16px; }
.sd-node b {
  display: block;
  font-family: var(--font-display);
  font-weight: 650; font-size: 12.5px;
  color: var(--fg); letter-spacing: -0.005em;
  line-height: 1.1;
}
.sd-node span {
  display: block; font-size: 10px; color: var(--fg-muted); margin-top: 2px;
}

.sd-node.violet  .sd-ico { background: var(--color-violet-100); color: var(--color-violet-700); }
.sd-node.teal    .sd-ico { background: var(--color-teal-100); color: var(--color-teal-700); }
.sd-node.blue    .sd-ico { background: var(--color-blue-100); color: var(--color-blue-700); }
.sd-node.emerald .sd-ico { background: var(--color-emerald-100); color: var(--color-emerald-700); }
.sd-node.amber   .sd-ico { background: var(--color-amber-100); color: var(--color-amber-600); }
.sd-node.slate   .sd-ico { background: var(--color-slate-100); color: var(--color-slate-700); }

@keyframes sd-float {
  0%, 100% { transform: translate(-50%, -50%); }
  50%      { transform: translate(-50%, calc(-50% - 5px)); }
}

/* node positions (top center, then clockwise) */
.sd-pos-1 { left: 50%;  top: 7%;   animation-delay: 0s; }
.sd-pos-2 { left: 93%;  top: 28%;  animation-delay: .8s; }
.sd-pos-3 { left: 93%;  top: 72%;  animation-delay: 1.6s; }
.sd-pos-4 { left: 50%;  top: 93%;  animation-delay: 2.4s; }
.sd-pos-5 { left: 7%;   top: 72%;  animation-delay: 3.2s; }
.sd-pos-6 { left: 7%;   top: 28%;  animation-delay: 4s; }

/* tiny learner dots traveling on orbit (decorative) */
.sd-traveler {
  position: absolute;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--color-violet-500);
  box-shadow: 0 0 0 3px rgba(139,92,246,.18);
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  z-index: 3;
}

/* ============================================================
   SECTION 2 — Positioning (traditional vs sublime)
   ============================================================ */
.section.pl-positioning { background: var(--color-ivory); }
.position-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
  margin-top: 24px;
}
.position-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  padding: 32px;
  position: relative;
  overflow: hidden;
}
.position-card.old {
  background: var(--color-mist);
}
.position-card.old .pos-eyebrow { color: var(--fg-muted); }

.position-card.new {
  border: 1px solid var(--color-violet-200);
  box-shadow: var(--shadow-violet-soft);
}
.position-card.new::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient-ai-primary);
}

.pos-eyebrow {
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--color-violet-700);
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 12px;
}
.pos-eyebrow i { width: 14px; height: 14px; }
.position-card h3 {
  font-family: var(--font-display);
  font-size: 22px; font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--fg);
  margin: 0 0 18px;
}

/* tiny path mock inside each card */
.pos-path-mock {
  background: var(--bg);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-soft);
  padding: 18px;
  margin-bottom: 22px;
}
.pos-path-mock svg { width: 100%; height: 60px; display: block; }

/* feature lists */
.position-card ul {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 10px;
}
.position-card li {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 14px; color: var(--fg-body);
}
.position-card li i { width: 16px; height: 16px; flex-shrink: 0; margin-top: 1px; }
.position-card.old li i { color: var(--color-slate-400); }
.position-card.new li i { color: var(--color-violet-600); }
.position-card.new li { color: var(--fg); }

/* ============================================================
   SECTION 3 — Six-pillar radial system
   ============================================================ */
.section.pl-pillars-section { background: var(--bg); position: relative; }

.pillars-radial {
  position: relative;
  width: 100%;
  max-width: 980px;
  aspect-ratio: 1.4 / 1;
  margin: 32px auto 0;
}
.pr-svg {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
}
.pr-svg circle { fill: none; }
.pr-svg .pr-orbit {
  stroke: rgba(109,40,217,.12); stroke-width: 1.5;
  stroke-dasharray: 3 6;
}
.pr-svg .pr-spoke {
  stroke: rgba(109,40,217,.18); stroke-width: 1.2;
  stroke-dasharray: 4 5;
}

.pr-center {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 200px; height: 200px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1F1B3A 0%, #2E1065 100%);
  color: #fff;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
  z-index: 5;
  box-shadow: 0 24px 60px -20px rgba(46, 16, 101, .45);
}
.pr-center::before {
  content: '';
  position: absolute; inset: -10px;
  border-radius: 50%;
  border: 1px solid rgba(167, 139, 250, .25);
}
.pr-center i { width: 22px; height: 22px; color: #A78BFA; margin-bottom: 8px; }
.pr-center-lbl {
  font-size: 10px; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase;
  color: #C4B5FD;
}
.pr-center-ttl {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 700;
  color: #fff; margin-top: 4px;
  letter-spacing: -0.01em;
}
.pr-center-sub {
  font-size: 11px;
  color: rgba(196, 181, 253, .8);
  margin-top: 6px;
  max-width: 140px;
  line-height: 1.4;
}

.pillar-node {
  position: absolute;
  width: 224px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 16px;
  box-shadow: var(--shadow-md);
  z-index: 4;
  transform: translate(-50%, -50%);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.pillar-node:hover { transform: translate(-50%, calc(-50% - 3px)); box-shadow: var(--shadow-lg); }

.pn-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.pn-ico {
  width: 32px; height: 32px; border-radius: 9px;
  display: grid; place-items: center;
}
.pn-ico i { width: 16px; height: 16px; }
.pn-num {
  font-family: var(--font-mono); font-size: 10px; font-weight: 500;
  color: var(--fg-muted); letter-spacing: .04em;
  margin-left: auto;
}
.pillar-node h4 {
  font-family: var(--font-display);
  font-size: 15px; font-weight: 650;
  letter-spacing: -0.005em;
  color: var(--fg);
  margin: 0 0 6px;
}
.pillar-node p {
  margin: 0;
  font-size: 12px; line-height: 1.5;
  color: var(--fg-muted);
}

.pn.violet  .pn-ico { background: var(--color-violet-100); color: var(--color-violet-700); }
.pn.teal    .pn-ico { background: var(--color-teal-100); color: var(--color-teal-700); }
.pn.blue    .pn-ico { background: var(--color-blue-100); color: var(--color-blue-700); }
.pn.emerald .pn-ico { background: var(--color-emerald-100); color: var(--color-emerald-700); }
.pn.amber   .pn-ico { background: var(--color-amber-100); color: var(--color-amber-600); }
.pn.slate   .pn-ico { background: var(--color-slate-100); color: var(--color-slate-700); }

/* six positions around the center, on an ellipse */
.pp-1 { left: 16%; top: 18%; }
.pp-2 { left: 84%; top: 18%; }
.pp-3 { left: 96%; top: 50%; }
.pp-4 { left: 84%; top: 82%; }
.pp-5 { left: 16%; top: 82%; }
.pp-6 { left: 4%;  top: 50%; }

/* ============================================================
   SECTION 4 — Signal flow
   ============================================================ */
.section.pl-signal { background: var(--color-ivory); }
.signal-flow {
  position: relative;
  margin-top: 16px;
  padding: 48px 0 24px;
}
.signal-rail {
  position: absolute;
  top: 92px;
  left: 4%; right: 4%;
  height: 2px;
  background: linear-gradient(90deg,
    var(--color-amber-500) 0%,
    var(--color-violet-500) 35%,
    var(--color-blue-500) 65%,
    var(--color-emerald-500) 100%);
  border-radius: 999px;
  opacity: .25;
}
.signal-rail::after {
  content: '';
  position: absolute;
  top: 0; left: 0; height: 100%;
  width: 0;
  background: linear-gradient(90deg,
    var(--color-amber-500) 0%,
    var(--color-violet-500) 35%,
    var(--color-blue-500) 65%,
    var(--color-emerald-500) 100%);
  border-radius: 999px;
}
.signal-rail.in::after {
  width: 100%;
  transition: width 1.6s var(--ease-out);
}
.signal-steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}
.sig-step {
  display: flex; flex-direction: column; align-items: center;
  text-align: center;
}
.sig-num {
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  color: var(--fg-muted); margin-bottom: 14px;
}
.sig-node {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--border);
  display: grid; place-items: center;
  position: relative;
  z-index: 2;
  box-shadow: var(--shadow-md);
}
.sig-node i { width: 22px; height: 22px; color: var(--color-slate-500); }
.sig-step.amber   .sig-node { border-color: var(--color-amber-500);   background: var(--color-amber-50); }
.sig-step.violet  .sig-node { border-color: var(--color-violet-500);  background: var(--color-violet-50); }
.sig-step.violet2 .sig-node { border-color: var(--color-violet-500);  background: var(--color-violet-50); }
.sig-step.blue    .sig-node { border-color: var(--color-blue-500);    background: var(--color-blue-50); }
.sig-step.teal    .sig-node { border-color: var(--color-teal-500);    background: var(--color-teal-50); }
.sig-step.emerald .sig-node { border-color: var(--color-emerald-500); background: var(--color-emerald-50); }
.sig-step.amber   .sig-node i { color: var(--color-amber-600); }
.sig-step.violet  .sig-node i,
.sig-step.violet2 .sig-node i { color: var(--color-violet-700); }
.sig-step.blue    .sig-node i { color: var(--color-blue-700); }
.sig-step.teal    .sig-node i { color: var(--color-teal-700); }
.sig-step.emerald .sig-node i { color: var(--color-emerald-700); }

.sig-pulse {
  position: absolute; inset: -6px;
  border-radius: 50%;
  border: 2px solid currentColor;
  opacity: 0;
}
.signal-rail.in ~ .signal-steps .sig-pulse { animation: sigPulse 3.4s ease-out infinite; }
@keyframes sigPulse {
  0%   { transform: scale(.8); opacity: .6; }
  100% { transform: scale(1.6); opacity: 0; }
}

.sig-ttl {
  font-family: var(--font-display);
  font-weight: 650; font-size: 14px;
  color: var(--fg); letter-spacing: -0.005em;
  margin-top: 16px;
}
.sig-desc {
  font-size: 12px; color: var(--fg-muted);
  line-height: 1.5; margin-top: 4px;
  max-width: 160px;
}

/* ============================================================
   SECTION 5 — Student experience preview
   ============================================================ */
.split-grid.pl-split {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 64px;
  align-items: center;
}
.split-grid.pl-split.reverse { grid-template-columns: 1.05fr 1fr; }
.split-grid.pl-split.reverse .split-art { order: -1; }

.feat-pills {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin: 24px 0 0;
}
.feat-pills .pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 12px;
  font-size: 12.5px; font-weight: 500;
  color: var(--fg-body);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
}
.feat-pills .pill i { width: 14px; height: 14px; color: var(--color-violet-600); }
.feat-pills .pill.teal i { color: var(--color-teal-600); }
.feat-pills .pill.blue i { color: var(--color-blue-700); }
.feat-pills .pill.emerald i { color: var(--color-emerald-600); }
.feat-pills .pill.amber i { color: var(--color-amber-600); }

.quote-block {
  margin: 28px 0 0;
  padding: 16px 20px;
  background: var(--color-violet-50);
  border-left: 3px solid var(--color-violet-500);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  font-family: var(--font-display);
  font-size: 15px; line-height: 1.5;
  color: var(--color-violet-900);
  letter-spacing: -0.005em;
  font-weight: 500;
}
.quote-block.teal { background: var(--color-teal-50); border-color: var(--color-teal-500); color: #134E4A; }
.quote-block.emerald { background: var(--color-emerald-50); border-color: var(--color-emerald-500); color: var(--color-emerald-700); }
.quote-block.blue { background: var(--color-blue-50); border-color: var(--color-blue-500); color: #1E3A8A; }

/* Student preview card (richer than homepage's phone) */
.student-preview {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.sp-chrome {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #FCFAFF 0%, #FFFFFF 100%);
}
.sp-tab {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px;
  background: var(--color-violet-50);
  color: var(--color-violet-700);
  border-radius: 8px;
  font-size: 12px; font-weight: 600;
}
.sp-tab i { width: 14px; height: 14px; }
.sp-chrome .dots { display: flex; gap: 6px; }
.sp-chrome .dots span { width: 10px; height: 10px; border-radius: 999px; }
.sp-chrome .dots span:nth-child(1) { background: #FCA5A5; }
.sp-chrome .dots span:nth-child(2) { background: #FCD34D; }
.sp-chrome .dots span:nth-child(3) { background: #86EFAC; }
.sp-actions { margin-left: auto; color: var(--fg-muted); display: flex; gap: 14px; }
.sp-actions i { width: 16px; height: 16px; }

.sp-body { padding: 26px 28px; display: grid; gap: 18px; }
.sp-greet { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.sp-greet h4 {
  font-family: var(--font-display);
  font-size: 22px; font-weight: 700;
  color: var(--fg); margin: 0; letter-spacing: -0.015em;
}
.sp-greet .sp-eyebrow { font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--color-violet-700); }

.sp-progress-row {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px;
}
.sp-stat {
  background: var(--color-mist);
  border-radius: var(--radius-lg);
  padding: 14px;
}
.sp-stat-lbl { font-size: 10px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--fg-muted); }
.sp-stat-val {
  font-family: var(--font-display);
  font-size: 20px; font-weight: 700;
  color: var(--fg); margin-top: 4px;
  letter-spacing: -0.01em;
}
.sp-stat-val small { font-size: 12px; color: var(--fg-muted); }
.sp-stat-bar {
  margin-top: 8px;
  height: 5px; border-radius: 999px;
  background: rgba(15,23,42,.06);
  overflow: hidden;
}
.sp-stat-bar span {
  display: block; height: 100%;
  background: var(--color-violet-600);
  border-radius: 999px;
}
.sp-stat.teal .sp-stat-bar span { background: var(--color-teal-500); }
.sp-stat.emerald .sp-stat-bar span { background: var(--color-emerald-500); }

.sp-row {
  display: grid; grid-template-columns: 38px 1fr auto;
  gap: 12px; align-items: center;
  padding: 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.sp-row.violet { background: linear-gradient(135deg, #FAF5FF 0%, #FFFFFF 100%); border-color: var(--color-violet-200); }
.sp-row.amber  { background: #FFFBEB; border-color: var(--color-amber-100); }
.sp-row.teal   { background: var(--color-teal-50); border-color: var(--color-teal-100); }
.sp-row-ico {
  width: 38px; height: 38px; border-radius: 10px;
  display: grid; place-items: center;
}
.sp-row.violet .sp-row-ico { background: var(--color-violet-100); color: var(--color-violet-700); }
.sp-row.amber  .sp-row-ico { background: var(--color-amber-100); color: var(--color-amber-600); }
.sp-row.teal   .sp-row-ico { background: #CCFBF1; color: var(--color-teal-700); }
.sp-row-ico i { width: 18px; height: 18px; }
.sp-row b { display: block; font-family: var(--font-display); font-size: 14px; font-weight: 650; color: var(--fg); letter-spacing: -0.005em; }
.sp-row span { display: block; font-size: 12px; color: var(--fg-muted); margin-top: 2px; line-height: 1.4; }
.sp-row .btn-mini { white-space: nowrap; }

/* ============================================================
   SECTION 6 — AI Mentor preview
   ============================================================ */
.section.pl-aimentor { background: var(--bg); position: relative; }

.ai-canvas {
  position: relative;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  padding: 28px;
  overflow: hidden;
}
.ai-canvas::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(167,139,250,.10), transparent 30%),
    radial-gradient(circle at 80% 80%, rgba(20,184,166,.06), transparent 30%);
  pointer-events: none;
}
.ai-center-card {
  position: relative;
  margin: 0 auto;
  width: 100%; max-width: 360px;
  background: var(--color-mist);
  border-radius: var(--radius-xl);
  padding: 18px;
  border: 1px solid var(--border-soft);
}
.ai-center-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.ai-center-head .ai-icon {
  position: relative;
  width: 40px; height: 40px; border-radius: 12px;
  background: var(--gradient-ai-primary); color: #fff;
  display: grid; place-items: center;
  box-shadow: var(--shadow-violet-soft);
}
.ai-center-head .ai-icon i { width: 18px; height: 18px; }
.ai-center-head .ai-icon .pulse-dot { position: absolute; top: -3px; right: -3px; width: 10px; height: 10px; border-radius: 999px; background: #8B5CF6; box-shadow: 0 0 0 3px var(--color-mist), 0 0 0 5px rgba(139,92,246,.3); animation: breathe 2.4s ease-in-out infinite; }
.ai-center-head b { font-family: var(--font-display); font-size: 14px; font-weight: 650; color: var(--fg); }
.ai-center-head span { display: block; font-size: 11px; color: var(--fg-muted); margin-top: 2px; }
.ai-center-card .lbl {
  font-size: 10px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--color-violet-700);
}
.ai-center-card p {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-size: 14px; line-height: 1.45;
  color: var(--fg);
  letter-spacing: -0.005em;
}

.ai-floats {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 28px;
}
.ai-float {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px;
  display: grid; grid-template-columns: 32px 1fr; gap: 10px; align-items: start;
  box-shadow: var(--shadow-sm);
}
.ai-float .af-ico {
  width: 32px; height: 32px; border-radius: 9px;
  display: grid; place-items: center;
  background: var(--color-violet-100); color: var(--color-violet-700);
}
.ai-float .af-ico i { width: 16px; height: 16px; }
.ai-float.amber .af-ico { background: var(--color-amber-100); color: var(--color-amber-600); }
.ai-float.teal .af-ico { background: var(--color-teal-100); color: var(--color-teal-700); }
.ai-float.blue .af-ico { background: var(--color-blue-100); color: var(--color-blue-700); }
.ai-float .af-lbl { font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--fg-muted); }
.ai-float p { font-size: 13px; line-height: 1.4; color: var(--fg); margin: 3px 0 0; font-weight: 500; letter-spacing: -0.005em; }

.ai-capabilities {
  list-style: none; padding: 0; margin: 28px 0 0;
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px 24px;
}
.ai-capabilities li {
  display: flex; gap: 10px; align-items: flex-start;
  font-size: 14px; color: var(--fg); line-height: 1.45;
}
.ai-capabilities li i {
  width: 18px; height: 18px;
  color: var(--color-violet-600);
  margin-top: 2px; flex-shrink: 0;
}

/* ============================================================
   SECTION 7 — Cohort node map (page-specific)
   ============================================================ */
.section.pl-cohort { background: var(--color-ivory); }

.cohort-canvas {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  padding: 22px;
  position: relative;
  overflow: hidden;
}
.cc-head {
  display: flex; align-items: center; gap: 12px;
  padding-bottom: 14px; margin-bottom: 12px;
  border-bottom: 1px solid var(--border-soft);
}
.cc-head .lbl { font-size: 10px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--color-teal-700); }
.cc-head .ttl { font-family: var(--font-display); font-size: 15px; font-weight: 650; color: var(--fg); margin-top: 2px; }
.cc-head .chip-live {
  margin-left: auto; padding: 4px 10px; border-radius: 999px;
  background: var(--color-teal-50); color: var(--color-teal-700);
  font-size: 11px; font-weight: 600;
  display: inline-flex; align-items: center; gap: 6px;
}
.cc-head .dot-live { width: 6px; height: 6px; border-radius: 999px; background: var(--color-teal-500); animation: breathe 1.8s ease-in-out infinite; }
.cc-svg { width: 100%; height: auto; display: block; }
.cc-svg .pulse-violet { animation: glow 2.6s ease-in-out infinite; transform-origin: center; transform-box: fill-box; }
.cc-foot { display: flex; gap: 16px; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border-soft); flex-wrap: wrap; }
.cc-key { display: inline-flex; align-items: center; gap: 6px; font-size: 11px; color: var(--fg-muted); }
.cc-key i { width: 8px; height: 8px; border-radius: 999px; display: inline-block; }

/* ============================================================
   SECTION 8/9 — Instructor / Admin reused homepage dashboards
   (uses .dash-frame from site.css)
   ============================================================ */

/* ============================================================
   SECTION 10 — Recovery workflow long path
   ============================================================ */
.section.pl-recovery { background: var(--bg); }

.recovery-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
  padding: 36px;
  position: relative;
  overflow: hidden;
}
.recovery-svg { width: 100%; height: 160px; display: block; margin-bottom: 14px; }
.recovery-svg .rp-path {
  stroke-dasharray: 2200;
  stroke-dashoffset: 2200;
}
.recovery-svg.in .rp-path { animation: draw 2.4s var(--ease-out) forwards; }

.recovery-steps {
  display: grid; grid-template-columns: repeat(4, 1fr) 1fr 1fr 1fr 1fr;
  gap: 18px;
  margin-top: 8px;
}
.recovery-steps {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 12px;
}
.rcv {
  padding: 14px;
  border-radius: var(--radius-lg);
  background: var(--color-mist);
  border: 1px solid var(--border);
}
.rcv .rcv-num {
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 500;
  color: var(--fg-muted); margin-bottom: 8px;
}
.rcv .rcv-ico {
  width: 30px; height: 30px; border-radius: 8px;
  display: grid; place-items: center;
  margin-bottom: 10px;
}
.rcv .rcv-ico i { width: 16px; height: 16px; }
.rcv b {
  display: block;
  font-family: var(--font-display);
  font-size: 13px; font-weight: 650;
  color: var(--fg); letter-spacing: -0.005em;
  line-height: 1.3;
  margin-bottom: 4px;
}
.rcv span { font-size: 11px; color: var(--fg-muted); line-height: 1.4; }

.rcv.amber   .rcv-ico { background: var(--color-amber-100);  color: var(--color-amber-600); }
.rcv.violet  .rcv-ico { background: var(--color-violet-100); color: var(--color-violet-700); }
.rcv.blue    .rcv-ico { background: var(--color-blue-100);   color: var(--color-blue-700); }
.rcv.teal    .rcv-ico { background: var(--color-teal-100);   color: var(--color-teal-700); }
.rcv.emerald .rcv-ico { background: var(--color-emerald-100);color: var(--color-emerald-700); }

/* ============================================================
   SECTION 11 — Three workspaces
   ============================================================ */
.section.pl-workspaces { background: var(--color-ivory); position: relative; overflow: hidden; }

.workspaces-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  position: relative;
  z-index: 2;
}
/* faint signal line behind the cards */
.ws-link {
  position: absolute;
  left: 5%; right: 5%;
  top: 50%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-violet-300), var(--color-teal-500), var(--color-emerald-500), transparent);
  opacity: .35;
  z-index: 1;
}

.ws-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.ws-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
}
.ws-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.ws-card.violet::before  { background: var(--gradient-ai-primary); }
.ws-card.teal::before    { background: linear-gradient(90deg, #14B8A6, #0D9488); }
.ws-card.blue::before    { background: linear-gradient(90deg, #3B82F6, #1D4ED8); }

.ws-head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.ws-ico {
  width: 44px; height: 44px; border-radius: 12px;
  display: grid; place-items: center;
}
.ws-ico i { width: 22px; height: 22px; }
.ws-card.violet .ws-ico { background: var(--color-violet-100); color: var(--color-violet-700); }
.ws-card.teal .ws-ico   { background: var(--color-teal-100);   color: var(--color-teal-700); }
.ws-card.blue .ws-ico   { background: var(--color-blue-100);   color: var(--color-blue-700); }

.ws-card h3 {
  font-family: var(--font-display);
  font-size: 20px; font-weight: 700;
  color: var(--fg); letter-spacing: -0.015em;
  margin: 0;
}
.ws-card .ws-aud {
  font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--fg-muted); margin-top: 2px;
}
.ws-card > p { font-size: 14px; line-height: 1.55; color: var(--fg-body); margin: 0 0 16px; }

.ws-feat {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: 1fr 1fr; gap: 6px 18px;
}
.ws-feat li {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--fg); font-weight: 500;
}
.ws-feat li::before {
  content: ''; width: 6px; height: 6px; border-radius: 999px;
  background: var(--color-violet-500);
}
.ws-card.teal .ws-feat li::before  { background: var(--color-teal-500); }
.ws-card.blue .ws-feat li::before  { background: var(--color-blue-500); }

/* ============================================================
   SECTION 12 — Use cases grid
   ============================================================ */
.uc-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.uc-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 24px;
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.uc-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.uc-ico {
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--color-violet-100); color: var(--color-violet-700);
  display: grid; place-items: center;
  margin-bottom: 14px;
}
.uc-ico i { width: 20px; height: 20px; }
.uc-card h4 { font-family: var(--font-display); font-size: 16px; font-weight: 650; color: var(--fg); letter-spacing: -0.005em; margin: 0 0 6px; }
.uc-card p { font-size: 13px; line-height: 1.55; color: var(--fg-muted); margin: 0 0 16px; }
.uc-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 600;
  color: var(--color-violet-700);
  text-decoration: none;
}
.uc-link i { width: 14px; height: 14px; transition: transform var(--dur-base) ease; }
.uc-link:hover i { transform: translateX(3px); }

/* ============================================================
   SECTION 13 — Feature grid with route links
   ============================================================ */
.features-route-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.feat-route {
  display: flex; gap: 14px;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  text-decoration: none;
  color: inherit;
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}
.feat-route:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-violet-200);
}
.feat-route:hover h4 { color: var(--color-violet-700); }
.feat-route .fr-ico {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--color-violet-100); color: var(--color-violet-700);
  display: grid; place-items: center;
  flex-shrink: 0;
}
.feat-route.teal .fr-ico { background: var(--color-teal-100); color: var(--color-teal-700); }
.feat-route.blue .fr-ico { background: var(--color-blue-100); color: var(--color-blue-700); }
.feat-route.emerald .fr-ico { background: var(--color-emerald-100); color: var(--color-emerald-700); }
.feat-route.amber .fr-ico { background: var(--color-amber-100); color: var(--color-amber-600); }
.feat-route .fr-ico i { width: 18px; height: 18px; }
.feat-route h4 {
  font-family: var(--font-display);
  font-size: 14px; font-weight: 650;
  color: var(--fg); letter-spacing: -0.005em;
  margin: 0 0 4px;
  transition: color var(--dur-base) ease;
}
.feat-route p { font-size: 12px; line-height: 1.45; color: var(--fg-muted); margin: 0; }

/* ============================================================
   SECTION 14 — Outcome rings
   ============================================================ */
.section.pl-outcomes { background: var(--color-ivory); }
.outcome-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.outcome {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  display: grid; grid-template-columns: 96px 1fr; gap: 20px;
  align-items: center;
}
.outcome-ring { position: relative; width: 96px; height: 96px; }
.outcome-ring-val {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  font-family: var(--font-display); line-height: 1;
}
.outcome-ring-val b { display: inline-flex; align-items: baseline; font-size: 20px; font-weight: 700; color: var(--fg); letter-spacing: -0.02em; line-height: 1; }
.outcome-ring-val b small { font-size: 12px; color: var(--fg-muted); margin-left: 1px; }
.outcome-ring-val span { font-size: 9px; color: var(--fg-muted); letter-spacing: .1em; text-transform: uppercase; margin-top: 5px; }
.outcome h4 {
  font-family: var(--font-display);
  font-size: 15px; font-weight: 650;
  color: var(--fg); letter-spacing: -0.005em;
  margin: 0 0 4px;
}
.outcome p { font-size: 12px; line-height: 1.5; color: var(--fg-muted); margin: 0; }

/* ============================================================
   SECTION 15 — Final CTA (reuses .final-cta from site.css)
   ============================================================ */

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1100px) {
  .pl-hero-grid { grid-template-columns: 1fr; gap: 56px; }
  .system-diagram { max-width: 560px; }

  .pillars-radial { aspect-ratio: 1 / 1.1; max-width: 720px; }
  .pillar-node { width: 200px; }

  .split-grid.pl-split, .split-grid.pl-split.reverse {
    grid-template-columns: 1fr; gap: 48px;
  }
  .split-grid.pl-split.reverse .split-art { order: 0; }

  .position-grid { grid-template-columns: 1fr; }
  .workspaces-grid { grid-template-columns: 1fr; }
  .ws-link { display: none; }

  .uc-grid { grid-template-columns: repeat(2, 1fr); }
  .features-route-grid { grid-template-columns: repeat(2, 1fr); }
  .outcome-grid { grid-template-columns: repeat(2, 1fr); }
  .recovery-steps { grid-template-columns: repeat(4, 1fr); }

  .ai-floats { grid-template-columns: repeat(2, 1fr); }

  .signal-steps { grid-template-columns: repeat(3, 1fr); row-gap: 32px; }
  .signal-rail { display: none; }
}

@media (max-width: 760px) {
  .pl-hero { padding: 32px 0 56px; }
  .pl-hero h1 { font-size: clamp(34px, 8vw, 44px); }
  .pl-hero p.lede { font-size: 16px; }

  .system-diagram { max-width: 100%; aspect-ratio: 1 / 1.2; }
  .sd-center { width: 150px; height: 150px; }
  .sd-center-ttl { font-size: 14px; padding: 0 10px; }
  .sd-node { min-width: 130px; padding: 8px 10px 8px 8px; }
  .sd-node b { font-size: 11px; }
  .sd-node span { font-size: 9px; }

  .pillars-radial {
    aspect-ratio: auto; max-width: none;
    display: grid; grid-template-columns: 1fr; gap: 12px;
    padding: 0;
  }
  .pr-svg { display: none; }
  .pr-center {
    position: static; transform: none;
    width: 100%; height: auto; border-radius: var(--radius-xl);
    padding: 22px; margin-bottom: 8px;
    align-items: flex-start; text-align: left;
  }
  .pr-center-sub { max-width: none; }
  .pillar-node { position: static; transform: none; width: auto; }

  .signal-steps { grid-template-columns: 1fr 1fr; row-gap: 28px; }

  .ai-floats { grid-template-columns: 1fr 1fr; }
  .ai-capabilities { grid-template-columns: 1fr; }

  .recovery-card { padding: 22px; }
  .recovery-steps { grid-template-columns: 1fr 1fr; }
  .recovery-svg { display: none; }

  .uc-grid { grid-template-columns: 1fr; }
  .features-route-grid { grid-template-columns: 1fr; }
  .outcome-grid { grid-template-columns: 1fr; }
  .outcome { grid-template-columns: 72px 1fr; gap: 16px; padding: 20px; }
  .outcome-ring { width: 72px; height: 72px; }

  .sp-body { padding: 20px; gap: 14px; }
  .sp-progress-row { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .sd-svg .sd-link, .sd-node, .sd-center::after,
  .recovery-svg .rp-path, .signal-rail.in::after, .sig-pulse {
    animation: none !important;
    stroke-dashoffset: 0 !important;
  }
}


/* card top-accent removed — cleaner cards via border/shadow/hover */
.position-card.new::before, .ws-card::before { display:none !important; }