/* ============================================================
   Argus Live Demo - page styles
   Inherits design tokens from ../styles.css
   ============================================================ */

.demo-body { background: var(--bg-0); min-height: 100vh; overflow-x: hidden; }

.demo-nav {
    position: sticky; top: 0; z-index: 100; padding: 18px 0;
    background: rgba(6,6,15,0.78);
    backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px);
    border-bottom: 1px solid var(--border);
}
.nav-container {
    display: flex; align-items: center; justify-content: space-between;
    max-width: 1100px; margin: 0 auto; padding: 0 24px;
}
.demo-back-link {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 0.85rem; font-weight: 500; color: var(--text-1);
    padding: 7px 14px; border-radius: var(--r-sm); border: 1px solid var(--border);
    transition: var(--t);
}
.demo-back-link:hover { color: var(--cyan); border-color: var(--border-a); background: rgba(34,211,238,0.06); }

.demo-main { position: relative; min-height: calc(100vh - 60px); padding: 56px 0 80px; }
.demo-bg { position: absolute; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.demo-grid {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(34,211,238,0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(34,211,238,0.045) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 70% 70% at 50% 30%, rgba(0,0,0,.85) 0%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 30%, rgba(0,0,0,.85) 0%, transparent 100%);
}
.demo-glow {
    position: absolute; border-radius: 50%; filter: blur(100px); opacity: 0.13; pointer-events: none;
}
.demo-glow-1 {
    width: 520px; height: 520px;
    background: radial-gradient(circle, var(--cyan), transparent 70%);
    top: -180px; right: -100px;
    animation: floatOrb 11s ease-in-out infinite;
}
.demo-glow-2 {
    width: 460px; height: 460px;
    background: radial-gradient(circle, var(--violet), transparent 70%);
    bottom: -160px; left: -120px;
    animation: floatOrb 14s ease-in-out infinite reverse;
}
@keyframes floatOrb {
    0%, 100% { transform: translateY(0) scale(1); }
    50%       { transform: translateY(-30px) scale(1.04); }
}

.demo-container { position: relative; z-index: 1; max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ============================================================
   Hero
   ============================================================ */
.demo-hero {
    text-align: center; margin-bottom: 36px;
    max-width: 720px; margin-left: auto; margin-right: auto;
}
.demo-hero .section-label { margin-bottom: 16px; }
.demo-title {
    font-size: clamp(2.4rem, 6vw, 3.8rem);
    letter-spacing: -0.03em; margin-bottom: 16px;
    font-family: var(--ff-display); line-height: 1.05;
}
.demo-subhead { color: var(--text-1); font-size: 1rem; line-height: 1.78; margin-bottom: 14px; }
.demo-caption {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--ff-mono); font-size: 0.74rem; color: var(--text-2);
    background: rgba(255,255,255,0.03); border: 1px solid var(--border);
    padding: 6px 14px; border-radius: 100px;
}
.demo-caption i { color: var(--cyan); opacity: 0.7; }

/* ============================================================
   Layout
   ============================================================ */
.argus-layout {
    display: grid; grid-template-columns: 1fr 280px; gap: 24px; align-items: start;
}

/* ============================================================
   Toolbar
   ============================================================ */
.reg-toolbar {
    display: flex; align-items: center; justify-content: space-between;
    gap: 14px; margin-bottom: 18px; flex-wrap: wrap;
}

.argus-status-bar {
    display: inline-flex; align-items: center; gap: 10px;
    font-family: var(--ff-mono); font-size: 0.78rem; color: var(--text-1);
    padding: 8px 16px; border-radius: 100px;
    background: rgba(255,255,255,0.03); border: 1px solid var(--border);
}
.status-indicator {
    width: 7px; height: 7px; border-radius: 50%; background: #4ade80;
    box-shadow: 0 0 8px #4ade80;
    animation: pulseDot 2s ease-in-out infinite;
    flex-shrink: 0;
}
@keyframes pulseDot {
    0%, 100% { box-shadow: 0 0 0 0 rgba(74,222,128,0); }
    50%       { box-shadow: 0 0 0 5px rgba(74,222,128,0.18); }
}

.argus-btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 20px; border-radius: var(--r-sm);
    background: var(--gradient); border: none; color: #05050d;
    font-size: 0.88rem; font-family: var(--ff-sans); font-weight: 600;
    transition: var(--t); cursor: pointer;
}
.argus-btn:hover { filter: brightness(1.08); box-shadow: 0 6px 20px rgba(34,211,238,0.28); }
.argus-btn:active { transform: scale(0.97); }
.argus-btn:disabled { opacity: 0.5; cursor: not-allowed; filter: none; box-shadow: none; }

/* ============================================================
   Register grid
   ============================================================ */
.reg-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
}

/* ============================================================
   Register card
   ============================================================ */
.reg-card {
    background: rgba(255,255,255,0.03); border: 1px solid var(--border);
    border-radius: var(--r-lg); padding: 18px 20px;
    transition: border-color 0.35s ease, box-shadow 0.35s ease;
}
.reg-card:hover { border-color: rgba(34,211,238,0.2); }
.reg-card.is-drift {
    border-color: rgba(245,158,11,0.35);
    box-shadow: 0 0 20px rgba(245,158,11,0.07);
}
.reg-card.is-fault {
    border-color: rgba(239,68,68,0.45);
    box-shadow: 0 0 24px rgba(239,68,68,0.10);
}

.reg-card-header {
    display: flex; align-items: flex-start; justify-content: space-between;
    gap: 10px; margin-bottom: 14px;
}
.reg-name-block { display: flex; flex-direction: column; gap: 3px; }
.reg-name { font-size: 0.88rem; font-weight: 600; color: var(--text-0); line-height: 1.2; }
.reg-addr { font-family: var(--ff-mono); font-size: 0.65rem; color: var(--text-2); }

.reg-badge {
    display: inline-flex; align-items: center; gap: 5px; flex-shrink: 0;
    font-family: var(--ff-mono); font-size: 0.66rem; font-weight: 700;
    padding: 4px 9px; border-radius: 100px; letter-spacing: 0.05em;
    white-space: nowrap;
}
.badge-normal {
    background: rgba(34,211,238,0.08); color: var(--cyan);
    border: 1px solid rgba(34,211,238,0.25);
}
.badge-drift {
    background: rgba(245,158,11,0.10); color: #f59e0b;
    border: 1px solid rgba(245,158,11,0.28);
}
.badge-fault {
    background: rgba(239,68,68,0.12); color: #f87171;
    border: 1px solid rgba(239,68,68,0.3);
    animation: faultPulse 1.4s ease-in-out infinite;
}
@keyframes faultPulse {
    0%, 100% { opacity: 0.75; }
    50%       { opacity: 1; }
}

/* ============================================================
   Value display
   ============================================================ */
.reg-value-row {
    display: flex; align-items: baseline; gap: 6px; margin-bottom: 10px;
}
.reg-value {
    font-family: var(--ff-mono); font-size: 1.8rem; font-weight: 500;
    color: var(--text-0); line-height: 1; letter-spacing: -0.02em;
    transition: color 0.3s;
}
.reg-card.is-drift  .reg-value { color: #f59e0b; }
.reg-card.is-fault  .reg-value { color: #f87171; }

.reg-unit {
    font-family: var(--ff-mono); font-size: 0.75rem; color: var(--text-2);
}

@keyframes valFlash {
    0%   { opacity: 0.45; }
    100% { opacity: 1; }
}
.val-flash { animation: valFlash 0.35s ease forwards; }

/* ============================================================
   Sparkline
   ============================================================ */
.reg-spark {
    width: 100%; height: 44px; margin-bottom: 12px;
}
.reg-spark svg { width: 100%; height: 100%; display: block; }

/* ============================================================
   Range bar
   ============================================================ */
.reg-range {
    display: flex; align-items: center; gap: 8px;
}
.reg-limit {
    font-family: var(--ff-mono); font-size: 0.62rem; color: var(--text-2);
    white-space: nowrap; flex-shrink: 0;
}
.reg-track {
    flex: 1; height: 3px; background: rgba(255,255,255,0.07);
    border-radius: 2px; position: relative;
}
.reg-range-marker {
    position: absolute; width: 8px; height: 8px; border-radius: 50%;
    background: var(--cyan); top: -2.5px;
    transform: translateX(-50%);
    transition: left 0.6s ease, background 0.3s ease;
    box-shadow: 0 0 6px rgba(34,211,238,0.5);
}
.reg-card.is-drift  .reg-range-marker { background: #f59e0b; box-shadow: 0 0 6px rgba(245,158,11,0.5); }
.reg-card.is-fault  .reg-range-marker { background: #f87171; box-shadow: 0 0 8px rgba(239,68,68,0.6); }

/* ============================================================
   Feed panel
   ============================================================ */
.feed-panel {
    background: rgba(4,4,12,0.6); border: 1px solid var(--border);
    border-radius: var(--r-lg); overflow: hidden;
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    position: sticky; top: 80px;
}
.feed-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 16px; border-bottom: 1px solid var(--border);
    background: rgba(255,255,255,0.02);
}
.stage-eyebrow {
    font-family: var(--ff-mono); font-size: 0.72rem; color: var(--cyan);
    letter-spacing: 0.12em; text-transform: uppercase;
}
.feed-dot {
    width: 8px; height: 8px; border-radius: 50%; background: #4ade80;
    box-shadow: 0 0 8px #4ade80;
    animation: pulseDot 2s ease-in-out infinite;
}
.feed-log {
    height: 480px; overflow-y: auto; padding: 10px 0;
}
.feed-log::-webkit-scrollbar { width: 6px; }
.feed-log::-webkit-scrollbar-track { background: rgba(255,255,255,0.02); }
.feed-log::-webkit-scrollbar-thumb { background: rgba(34,211,238,0.15); border-radius: 3px; }

.feed-entry {
    padding: 6px 16px; font-family: var(--ff-mono); font-size: 0.71rem;
    line-height: 1.55; color: var(--text-2); border-bottom: 1px solid rgba(255,255,255,0.025);
    transition: background 0.2s;
}
.feed-entry:hover { background: rgba(255,255,255,0.02); }
.feed-entry.entry-new {
    animation: entryFade 0.3s ease forwards;
}
@keyframes entryFade {
    from { opacity: 0; background: rgba(34,211,238,0.08); }
    to   { opacity: 1; background: transparent; }
}

.feed-ts   { color: var(--text-2); margin-right: 8px; }
.feed-ok   { color: #4ade80; }
.feed-drift { color: #f59e0b; }
.feed-fault { color: #f87171; }
.feed-sys  { color: var(--cyan); opacity: 0.75; }
.feed-diag { color: var(--text-1); }

/* ============================================================
   Footer
   ============================================================ */
.footer { background: var(--bg-1); border-top: 1px solid var(--border); padding: 32px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-copy { font-size: 0.82rem; color: var(--text-2); }
.footer-socials { display: flex; gap: 16px; }
.footer-socials a { color: var(--text-2); font-size: 1rem; transition: color var(--t); }
.footer-socials a:hover { color: var(--cyan); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
    .argus-layout { grid-template-columns: 1fr; }
    .feed-panel { position: static; }
    .feed-log { height: 300px; }
}
@media (max-width: 600px) {
    .demo-main { padding: 32px 0 56px; }
    .reg-grid { grid-template-columns: 1fr; }
    .demo-back-link span { display: none; }
    .reg-toolbar { flex-direction: column; align-items: stretch; }
    .reg-value { font-size: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
    .demo-glow, .status-indicator, .feed-dot,
    .badge-fault, .val-flash { animation: none !important; }
    .reg-range-marker { transition: none; }
}