/* ═══════════════════════════════════════════════════════════════════════════
   roadmap-main.css  —  PRISM Engineering Highway  (v4 — horizontal)
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Design tokens ──────────────────────────────────────────────────────── */
:root {
  --rm-bg:        #172340;
  --rm-border:    rgba(255,255,255,0.12);
  --rm-text:      #eef2f8;
  --rm-text-2:    #c8d8eb;
  --rm-muted:     #a0bcda;
  --rm-dim:       #6a8aaa;
  --rm-accent:    #4f6ef7;
  --rm-success:   #22c55e;
  --rm-warn:      #f59e0b;
  --rm-font:      "Inter","Segoe UI",system-ui,sans-serif;
  --ph1: #22c55e; --ph2: #38bdf8; --ph3: #818cf8; --ph4: #f59e0b; --ph5: #f97316;

  /* Highway layout — all geometry lives here, JS mirrors these values  */
  --rm-road-h:  200px;   /* rendered SVG height                          */
  --rm-pad-v:   130px;   /* vertical space above & below road for cards  */
  --rm-wrap-h:  460px;   /* = pad-v + road-h + pad-v = 130+200+130       */
  --rm-card-w:  260px;
}

/* ── Page body ──────────────────────────────────────────────────────────── */
body.roadmap-main-mode {
  background: var(--rm-bg);
  /* Lock to viewport — no page scroll */
  height: 100vh !important;
  max-height: 100vh !important;
  overflow: hidden !important;
  display: block !important;
}
body.roadmap-main-mode #im-toolbar { display: none !important; }

/* ── Root wrapper ───────────────────────────────────────────────────────── */
#rm-main {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  position: relative;   /* anchor for #rm-particle-canvas */
  background: linear-gradient(180deg, #172340 0%, #152040 35%, #121c3a 70%, #101830 100%);
  font-family: var(--rm-font);
  color: var(--rm-text);
}

/* ── Particle constellation canvas ─────────────────────────────────────── */
#rm-particle-canvas {
  animation: rm-fade-up 1.2s ease both 0.3s;
}

/* ════════════════════════════════════════════════════════════════════════════
   HERO  (compact)
   ════════════════════════════════════════════════════════════════════════════ */
#rm-hero {
  position: relative;
  z-index: 2;
  padding: 10px 24px 6px;
  text-align: center;
  flex-shrink: 0;
  animation: rm-fade-up 0.45s ease both;
}
#rm-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 800px 280px at 50% 0, rgba(79,110,247,0.12) 0%, transparent 65%);
  pointer-events: none;
}
#rm-hero::after {
  content: '';
  position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 500px; max-width: 80%; height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(79,110,247,0.25) 40%, rgba(79,110,247,0.25) 60%, transparent 100%);
}
.rm-hero-inner { position: relative; max-width: 600px; margin: 0 auto; }

.rm-hero-title {
  font-size: clamp(var(--fs-lg), 2.2vw, var(--fs-2xl));
  font-weight: 800; letter-spacing: -0.03em; line-height: var(--lh-tight);
  color: var(--rm-text); margin-bottom: 6px;
}
.rm-hero-title em {
  font-style: normal;
  background: linear-gradient(110deg, #5a7fff 0%, #9b8af7 50%, #38bdf8 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

.rm-hero-stats {
  display: flex; align-items: center; justify-content: center; margin-bottom: 6px;
}
.rm-hero-stat {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 0 18px; border-right: 1px solid rgba(255,255,255,0.09);
}
.rm-hero-stat:last-child { border-right: none; }
.rm-hero-stat-value {
  font-size: var(--fs-md); font-weight: 800; color: var(--rm-text); letter-spacing: -0.025em; line-height: 1;
}
.rm-hero-stat-label {
  font-size: var(--fs-xss); font-weight: 600; letter-spacing: 0.07em; text-transform: uppercase; color: var(--rm-dim);
}

.rm-hero-progress-wrap { max-width: 340px; margin: 0 auto; }
.rm-hero-progress-meta {
  display: flex; justify-content: space-between;
  font-size: var(--fs-xss); font-weight: 600; color: var(--rm-muted); margin-bottom: 4px;
}
#rm-hero-pct { color: var(--rm-accent); font-weight: 800; }
.rm-hero-progress-track {
  height: 4px; background: rgba(255,255,255,0.08); border-radius: 999px; overflow: hidden;
}
#rm-hero-progress-bar {
  height: 100%; width: 0%; border-radius: 999px;
  background: linear-gradient(90deg, #4f6ef7 0%, #9b8af7 100%);
  transition: width 1s cubic-bezier(.16,1,.3,1);
  box-shadow: 0 0 10px rgba(79,110,247,0.5);
}

/* Scroll hint — hidden (page is now viewport-locked) */
.rm-scroll-hint { display: none; }

/* ════════════════════════════════════════════════════════════════════════════
   HORIZONTAL HIGHWAY CANVAS — full viewport width, no scroll
   ════════════════════════════════════════════════════════════════════════════ */
#rm-journey-canvas {
  flex: 1 1 0;
  min-height: 0;
  position: relative;
  z-index: 2;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 0;
}

/* Dot-grid texture */
.rm-canvas-bg {
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none; z-index: 0;
}

/* ── Road wrapper — full width, fixed height ────────────────────────────── */
#rm-road-wrap {
  position: relative;
  width: 100%;
  height: var(--rm-wrap-h);   /* 550px */
  z-index: 1;
  flex-shrink: 0;
}

/* SVG sits in the vertical centre band of the wrapper */
#rm-road-svg {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  height: var(--rm-road-h);    /* 200px tall */
  overflow: visible;
}
.rm-road-layer { pointer-events: none; }

#rm-road-progress-path {
  stroke-dasharray: 3200;
  stroke-dashoffset: 3200;
  transition: stroke-dashoffset 1.6s cubic-bezier(.16,1,.3,1) .5s;
}

/* ── START / MASTERY caps ───────────────────────────────────────────────── */
.rm-road-cap {
  position: absolute;
  /* matches SVG which uses top:50%; transform:translateY(-50%) */
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
}
.rm-road-cap-start { left: 16px; }
.rm-road-cap-end   { right: 16px; }

.rm-road-cap-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: var(--fs-xss); font-weight: 800; letter-spacing: 0.12em;
  color: #a5baff;
  background: rgba(30,50,100,0.85);
  border: 1.5px solid rgba(79,110,247,0.55);
  padding: 5px 13px; border-radius: 999px;
  box-shadow: 0 0 18px rgba(79,110,247,0.35), inset 0 1px 0 rgba(255,255,255,0.08);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  white-space: nowrap;
}
.rm-road-cap-badge-end {
  color: #fcd970;
  background: rgba(60,40,10,0.88);
  border-color: rgba(245,158,11,0.60);
  box-shadow: 0 0 18px rgba(245,158,11,0.35), inset 0 1px 0 rgba(255,255,255,0.08);
}

/* ── Phase checkpoint rings — HTML divs (avoids SVG stretch distortion) ─── */
.rm-node-ring {
  position: absolute;
  width: 34px; height: 34px;
  transform: translate(-50%, -50%);
  z-index: 8;
  border-radius: 50%;
  /* Ambient glow layer */
  background: radial-gradient(circle, color-mix(in srgb, var(--nring-col) 18%, transparent) 0%, transparent 70%);
  box-shadow:
    0 0 0 1.5px color-mix(in srgb, var(--nring-col) 55%, transparent),
    0 0 12px  color-mix(in srgb, var(--nring-col) 28%, transparent);
  pointer-events: none;
}
/* Inner dark fill + coloured border = the "ring" */
.rm-node-ring::before {
  content: '';
  position: absolute; inset: 6px;
  border-radius: 50%;
  background: #0e1e38;
  border: 1.5px solid color-mix(in srgb, var(--nring-col) 70%, transparent);
  box-shadow: 0 0 8px color-mix(in srgb, var(--nring-col) 30%, transparent);
}
/* Centre dot */
.rm-node-ring::after {
  content: '';
  position: absolute;
  width: 9px; height: 9px;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: var(--nring-col);
  opacity: 0.75;
  box-shadow: 0 0 6px var(--nring-col);
}
.rm-node-done::after { opacity: 1; }
.rm-node-next::after {
  animation: rm-node-pulse 2.2s ease-in-out infinite;
}
@keyframes rm-node-pulse {
  0%,100% { box-shadow: 0 0 4px var(--nring-col); transform: translate(-50%,-50%) scale(1); }
  50%     { box-shadow: 0 0 12px var(--nring-col); transform: translate(-50%,-50%) scale(1.25); }
}

/* ════════════════════════════════════════════════════════════════════════════
   PHASE MILESTONE CARDS  — float above (rm-ms-top) or below (rm-ms-bottom)
   JS sets `left` (%) and `bottom` or `top` (px) on each card.
   CSS handles centering on that x position.
   ════════════════════════════════════════════════════════════════════════════ */
#rm-milestones {
  position: absolute; inset: 0; pointer-events: none; z-index: 5;
}

.rm-milestone {
  position: absolute;
  width: 20rem;
  height: auto;
  pointer-events: auto;
  opacity: 0;
  transition: opacity 0.42s ease, transform 0.42s ease;
}
/* centred horizontally on the checkpoint x% */
.rm-milestone.rm-ms-top {
  transform: translateX(-50%) translateY(-10px);
}
.rm-milestone.rm-ms-bottom {
  transform: translateX(-50%) translateY(10px);
}
.rm-milestone.rm-ms-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Connector line from card to checkpoint ring */
.rm-milestone-connector {
  position: absolute;
  left: 50%; transform: translateX(-50%);
  width: 1px; height: 20px;
  opacity: 0.5;
  transition: opacity 0.25s ease, box-shadow 0.25s ease, width 0.25s ease;
}
.rm-ms-top    .rm-milestone-connector {
  bottom: -20px;
  background: linear-gradient(180deg, var(--ms-color, var(--rm-accent)) 0%, transparent 100%);
}
.rm-ms-bottom .rm-milestone-connector {
  top: -20px;
  background: linear-gradient(180deg, transparent 0%, var(--ms-color, var(--rm-accent)) 100%);
}
/* Connector brightens when card is hovered */
.rm-milestone:hover .rm-milestone-connector {
  opacity: 1;
  width: 2px;
  box-shadow: 0 0 8px var(--ms-color, var(--rm-accent));
}

/* ── Card shell ─────────────────────────────────────────────────────────── */
.rm-ms-card {
  background: rgba(13,24,48,0.80);
  border: 1px solid var(--rm-border);
  border-radius: 12px;
  padding: 16px 16px 13px;
  display: block; color: inherit; text-decoration: none; cursor: pointer;
  position: relative; overflow: hidden;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  isolation: isolate;
  transition:
    background 0.22s ease,
    border-color 0.22s ease,
    box-shadow 0.28s ease,
    transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);  /* spring */
  user-select: none;
}

/* Left accent bar */
.rm-ms-card::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--ms-color, var(--rm-accent));
  border-radius: 12px 0 0 12px;
  transition: width 0.25s ease, box-shadow 0.25s ease;
}

/* Shimmer sweep — slides across on hover, clipped by overflow:hidden */
.rm-ms-card::after {
  content: '';
  position: absolute;
  top: -10%; left: -55%;
  width: 45%; height: 120%;
  background: linear-gradient(
    105deg,
    transparent 0%,
    rgba(255,255,255,0.05) 40%,
    rgba(255,255,255,0.10) 50%,
    rgba(255,255,255,0.05) 60%,
    transparent 100%
  );
  transform: skewX(-12deg) translateX(0%);
  pointer-events: none;
  border-radius: 0;
  opacity: 0;
  transition: none;
}

.rm-ms-card:focus-visible {
  outline: 2px solid var(--ms-color, var(--rm-accent));
  outline-offset: 3px;
}

.rm-ms-card:hover {
  background: rgba(20,38,72,0.92);
  border-color: color-mix(in srgb, var(--ms-color, var(--rm-accent)) 45%, transparent);
  box-shadow:
    0 10px 40px rgba(0,0,0,0.50),
    0 0 0 1px color-mix(in srgb, var(--ms-color, var(--rm-accent)) 22%, transparent),
    0 0 28px color-mix(in srgb, var(--ms-color, var(--rm-accent)) 16%, transparent),
    inset 0 1px 0 rgba(255,255,255,0.07);
  transform: translateY(-5px) scale(1.022);
}

/* Left bar expands & glows on hover */
.rm-ms-card:hover::before {
  width: 4px;
  box-shadow: 0 0 14px 2px var(--ms-color, var(--rm-accent));
}

/* Trigger shimmer animation on hover */
.rm-ms-card:hover::after {
  animation: rm-card-shimmer 0.65s ease-out forwards;
  opacity: 1;
}

@keyframes rm-card-shimmer {
  0%   { transform: skewX(-12deg) translateX(0%);   opacity: 0; }
  15%  { opacity: 1; }
  85%  { opacity: 1; }
  100% { transform: skewX(-12deg) translateX(370%); opacity: 0; }
}

/* Top-edge glow line appears on hover */
.rm-ms-card .rm-ms-top-glow {
  position: absolute; top: 0; left: 10%; right: 10%; height: 1px;
  background: linear-gradient(90deg,
    transparent,
    color-mix(in srgb, var(--ms-color, var(--rm-accent)) 60%, white),
    transparent);
  opacity: 0;
  transition: opacity 0.28s ease 0.05s;
  pointer-events: none;
  border-radius: 999px;
}
.rm-ms-card:hover .rm-ms-top-glow { opacity: 1; }

/* ── Card header ─────────────────────────────────────────────────────────── */
.rm-ms-head { display: flex; align-items: flex-start; gap: 9px; margin-bottom: 9px; }

.rm-ms-num {
  font-size: var(--fs-xss); font-weight: 800; letter-spacing: 0.1em;
  color: var(--ms-color, var(--rm-accent));
  background: color-mix(in srgb, var(--ms-color, var(--rm-accent)) 13%, transparent);
  border: 1px solid color-mix(in srgb, var(--ms-color, var(--rm-accent)) 24%, transparent);
  padding: 3px 7px; border-radius: 5px;
  flex-shrink: 0; margin-top: 1px; white-space: nowrap;
  align-items: center; display: inline-flex;
  text-align: center;
}
.rm-ms-info { 
    flex: 1; 
    min-width: 0; 
    text-align: center; 
    align-items: center; 
    justify-content: center; 
}
.rm-ms-label {
  font-size: var(--fs-xs); font-weight: 700; color: var(--rm-text);
  letter-spacing: -0.01em; line-height: var(--lh-tight); margin-bottom: 4px;
}


/* ── Phase progress ──────────────────────────────────────────────────────── */
.rm-ms-progress-row {
  display: flex; align-items: center; gap: 8px; margin-bottom: 10px;
}
.rm-ms-progress-track {
  flex: 1; height: 3px; background: rgba(255,255,255,0.08); border-radius: 999px; overflow: hidden;
}
.rm-ms-progress-fill {
  height: 100%; border-radius: 999px;
  background: var(--ms-color, var(--rm-accent)); width: 0%;
  transition: width 0.75s cubic-bezier(.16,1,.3,1) 0.45s;
  box-shadow: 0 0 6px var(--ms-color, var(--rm-accent));
}
.rm-ms-progress-label {
  font-size: var(--fs-xss); font-weight: 800;
  color: var(--ms-color, var(--rm-accent));
  min-width: 32px; text-align: right; white-space: nowrap;
}
.rm-ms-start-cta {
  font-size: var(--fs-xss); font-weight: 700;
  color: var(--ms-color, var(--rm-accent));
  letter-spacing: 0.03em;
  opacity: 0.9;
}

/* ── Topic pills ─────────────────────────────────────────────────────────── */
.rm-ms-topics { display: flex; flex-wrap: wrap; gap: 4px; }

.rm-ms-topic-pill {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: var(--fs-xss); font-weight: 500;
  color: #ffffff;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.10);
  padding: 3px 8px; border-radius: 999px;
  text-decoration: none; cursor: default; white-space: nowrap;
  transition: background 0.14s, color 0.14s, border-color 0.14s;
}
.rm-ms-topic-pill[data-href] { cursor: pointer; }
.rm-ms-topic-pill:hover:not(.rm-tp-locked) {
  background: color-mix(in srgb, var(--ms-color, var(--rm-accent)) 12%, transparent);
  color: var(--rm-text);
  border-color: color-mix(in srgb, var(--ms-color, var(--rm-accent)) 30%, transparent);
}
.rm-ms-topic-pill.rm-tp-locked {
  opacity: 0.35; cursor: default; pointer-events: none; filter: grayscale(0.4);
}
.rm-ms-topic-pill.rm-tp-done {
  color: var(--rm-success); background: rgba(34,197,94,0.08); border-color: rgba(34,197,94,0.20);
}
.rm-ms-topic-pill.rm-tp-next {
  color: #fff; font-weight: 600;
  background: color-mix(in srgb, var(--ms-color, var(--rm-accent)) 16%, transparent);
  border-color: color-mix(in srgb, var(--ms-color, var(--rm-accent)) 38%, transparent);
  animation: rm-pill-glow 2.8s ease-in-out infinite;
}
@keyframes rm-pill-glow {
  0%,100% { box-shadow: 0 0 4px color-mix(in srgb, var(--ms-color, var(--rm-accent)) 18%, transparent); }
  50%     { box-shadow: 0 0 10px color-mix(in srgb, var(--ms-color, var(--rm-accent)) 36%, transparent); }
}
.rm-tp-icon { flex-shrink: 0; display: flex; align-items: center; }

.rm-ms-topic-more {
  font-size: var(--fs-xss); font-weight: 700; color: var(--rm-dim);
  padding: 3px 8px;
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: 999px;
}

/* ── Animations ─────────────────────────────────────────────────────────── */
@keyframes rm-fade-up {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
  #rm-hero { padding: 24px 14px 20px; }
  .rm-hero-stat { padding: 0 14px; }
  .rm-hero-stat-value { font-size: var(--fs-md); }
}

/* ═══════════════════════════════════════════════════════════════════════════
   PHASE 1 — Feature 4 · Engineer Level Identity (main canvas hero)
   ═══════════════════════════════════════════════════════════════════════════ */

#rm-hero-level {
  display: inline-flex;
  align-items: center;
  padding: 2px 12px;
  border-radius: 999px;
  font-size: var(--fs-xss);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
  margin-bottom: 10px;
  border: 1px solid var(--rmid-color, var(--rm-accent));
  background: color-mix(in srgb, var(--rmid-color, var(--rm-accent)) 12%, transparent);
  color: var(--rmid-color, var(--rm-accent));
  transition: color 0.3s, border-color 0.3s, background 0.3s;
  /* Fallback for browsers without color-mix */
  background: rgba(79,110,247,0.10);
}

/* ═══════════════════════════════════════════════════════════════════════════
   PHASE 1 — Feature 3 · Today's Goal card (floating top-right)
   ═══════════════════════════════════════════════════════════════════════════ */

#rm-today-goal {
  position: absolute;
  top: 16px;
  right: 20px;
  width: 280px;
  z-index: 20;
  animation: rm-fade-up 0.4s ease both 0.2s;
}

.rmg-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 16px;
  background: rgba(255,255,255,0.045);
  border: 1px solid rgba(255,255,255,0.11);
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.18s, border-color 0.18s, transform 0.15s;
  text-align: left;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.rmg-inner:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(79,110,247,0.4);
  transform: translateY(-1px);
}

.rmg-inner:focus-visible {
  outline: 2px solid var(--rm-accent);
  outline-offset: 2px;
}

.rmg-inner--done {
  cursor: default;
  opacity: 0.75;
}

.rmg-inner--done:hover {
  transform: none;
  border-color: rgba(255,255,255,0.11);
}

.rmg-done-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(34,197,94,0.15);
  color: var(--rm-success);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.rmg-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  min-width: 0;
}

.rmg-eyebrow {
  font-size: var(--fs-xss);
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--rm-accent);
}

.rmg-title {
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--rm-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.01em;
}

.rmg-context {
  font-size: var(--fs-xss);
  color: var(--rm-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rmg-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.rmg-time {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: var(--fs-xss);
  font-weight: 600;
  color: var(--rm-muted);
  white-space: nowrap;
}

.rmg-arrow {
  color: var(--rm-accent);
  opacity: 0.7;
  transition: opacity 0.15s, transform 0.15s;
}

.rmg-inner:hover .rmg-arrow {
  opacity: 1;
  transform: translateX(3px);
}