/* ═══════════════════════════════════════════════
   OmniSciLab — Global Design System
   © 2026 Ankit Chaubey
═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;0,900;1,400&family=Josefin+Sans:wght@200;300;400;600&family=Space+Mono:wght@400;700&display=swap');

:root {
  --bg:          #050810;
  --bg2:         #080d1a;
  --surface:     rgba(255,255,255,0.04);
  --surface2:    rgba(255,255,255,0.07);
  --border:      rgba(255,255,255,0.08);
  --border2:     rgba(255,255,255,0.14);

  --cyan:        #00f5c8;
  --violet:      #b06aff;
  --emerald:     #00e676;
  --amber:       #ffb300;
  --rose:        #ff4d6d;
  --blue:        #4fc3f7;
  --gold:        #f0c060;

  --text:        #e8eaf6;
  --muted:       #6b7094;
  --dim:         #3a3d5c;

  --radius:      14px;
  --radius-sm:   8px;
  --font-serif:  'Playfair Display', Georgia, serif;
  --font-sans:   'Josefin Sans', sans-serif;
  --font-mono:   'Space Mono', monospace;

  --glow-cyan:   0 0 30px rgba(0,245,200,0.25);
  --glow-violet: 0 0 30px rgba(176,106,255,0.25);
  --glow-amber:  0 0 30px rgba(255,179,0,0.25);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-weight: 300;
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--dim); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* ── GLOBAL NAV ── */
.lab-nav {
  position: sticky; top: 0; z-index: 200;
  background: rgba(5,8,16,0.9);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  padding: 14px 32px;
  display: flex; align-items: center; gap: 20px;
  justify-content: space-between;
}
.lab-nav .nav-brand {
  font-family: var(--font-serif);
  font-size: 1.1rem; font-weight: 700;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; text-decoration: none; white-space: nowrap;
}
.lab-nav .nav-back {
  font-family: var(--font-mono); font-size: 0.65rem;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--muted); text-decoration: none;
  border: 1px solid var(--border); padding: 6px 14px;
  border-radius: 20px; transition: all 0.2s;
}
.lab-nav .nav-back:hover { color: var(--cyan); border-color: var(--cyan); }
.lab-nav .nav-title {
  font-family: var(--font-mono); font-size: 0.7rem;
  letter-spacing: 0.15em; text-transform: uppercase; color: var(--muted);
}

/* ── CONTAINERS ── */
.lab-container {
  max-width: 1400px; margin: 0 auto;
  padding: 40px 32px 80px;
}
.lab-header {
  margin-bottom: 40px; padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.lab-eyebrow {
  font-family: var(--font-mono); font-size: 0.65rem;
  letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--accent, var(--cyan)); margin-bottom: 10px;
}
.lab-title {
  font-family: var(--font-serif); font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900; line-height: 1.1;
  background: linear-gradient(135deg, #fff 30%, var(--accent, var(--cyan)));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; margin-bottom: 10px;
}
.lab-subtitle {
  font-size: 0.9rem; color: var(--muted); max-width: 600px; line-height: 1.7;
}

/* ── PANELS ── */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.panel-header {
  padding: 14px 20px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
}
.panel-header-title {
  font-family: var(--font-mono); font-size: 0.65rem;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--muted);
}
.panel-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent, var(--cyan));
  box-shadow: 0 0 8px var(--accent, var(--cyan));
}
.panel-body { padding: 20px; }

/* ── CANVAS WRAPPER ── */
.canvas-wrap {
  position: relative; background: #000;
  border-radius: var(--radius-sm); overflow: hidden;
}
.canvas-wrap canvas { display: block; width: 100%; }

/* ── CONTROLS ── */
.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.control-group { display: flex; flex-direction: column; gap: 6px; }
.control-label {
  font-family: var(--font-mono); font-size: 0.6rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--muted); display: flex;
  justify-content: space-between; align-items: center;
}
.control-value {
  color: var(--accent, var(--cyan)); font-weight: 700;
}
input[type=range] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 4px;
  background: var(--surface2); border-radius: 2px; outline: none;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent, var(--cyan));
  box-shadow: 0 0 8px var(--accent, var(--cyan));
  cursor: pointer; transition: transform 0.1s;
}
input[type=range]::-webkit-slider-thumb:hover { transform: scale(1.3); }
input[type=range]::-moz-range-thumb {
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent, var(--cyan)); border: none;
  cursor: pointer;
}
input[type=text], input[type=number], select {
  background: var(--surface2); border: 1px solid var(--border);
  color: var(--text); font-family: var(--font-mono); font-size: 0.8rem;
  padding: 8px 12px; border-radius: var(--radius-sm); outline: none;
  width: 100%; transition: border-color 0.2s;
}
input[type=text]:focus, input[type=number]:focus, select:focus {
  border-color: var(--accent, var(--cyan));
}
select option { background: var(--bg2); }

/* ── BUTTONS ── */
.btn {
  font-family: var(--font-mono); font-size: 0.65rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  padding: 10px 20px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); cursor: pointer;
  background: var(--surface); color: var(--text);
  transition: all 0.2s; white-space: nowrap;
}
.btn:hover { border-color: var(--accent, var(--cyan)); color: var(--accent, var(--cyan)); }
.btn-primary {
  background: var(--accent, var(--cyan));
  color: #000; border-color: transparent; font-weight: 700;
}
.btn-primary:hover {
  background: transparent; color: var(--accent, var(--cyan));
  border-color: var(--accent, var(--cyan));
}
.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }

/* ── EQUATION DISPLAY ── */
.equation-box {
  background: rgba(0,0,0,0.4); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 16px 20px;
  font-family: var(--font-mono); font-size: 0.95rem;
  color: var(--accent, var(--cyan)); letter-spacing: 0.05em;
  text-align: center;
}

/* ── INFO CARDS ── */
.info-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
}
.info-card h4 {
  font-family: var(--font-serif); font-size: 1rem; font-weight: 700;
  color: #fff; margin-bottom: 8px;
}
.info-card p { font-size: 0.8rem; color: var(--muted); line-height: 1.7; }

/* ── LAYOUT HELPERS ── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px,1fr)); gap: 20px; }
.flex-gap { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.mb-20 { margin-bottom: 20px; }
.mb-32 { margin-bottom: 32px; }
.mt-20 { margin-top: 20px; }
.full-width { grid-column: 1 / -1; }

/* ── TAGS ── */
.tag {
  font-family: var(--font-mono); font-size: 0.58rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  padding: 3px 9px; border-radius: 20px;
  border: 1px solid currentColor; display: inline-block;
}

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity:0; transform: translateY(20px); }
  to   { opacity:1; transform: translateY(0); }
}
@keyframes pulse-glow {
  0%,100% { opacity: 0.6; } 50% { opacity: 1; }
}
@keyframes spin { to { transform: rotate(360deg); } }

.fade-up { animation: fadeUp 0.6s ease both; }
.fade-up-1 { animation: fadeUp 0.6s 0.1s ease both; }
.fade-up-2 { animation: fadeUp 0.6s 0.2s ease both; }
.fade-up-3 { animation: fadeUp 0.6s 0.3s ease both; }

/* ── FOOTER ── */
.lab-footer {
  margin-top: 60px; padding: 32px 0 0;
  border-top: 1px solid var(--border); text-align: center;
}
.lab-footer .footer-name {
  font-family: var(--font-serif); font-size: 1rem; font-weight: 700;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; margin-bottom: 4px;
}
.lab-footer a { color: var(--cyan); text-decoration: none; }
.lab-footer a:hover { text-decoration: underline; }
.lab-footer .footer-copy {
  font-family: var(--font-mono); font-size: 0.6rem;
  letter-spacing: 0.2em; color: var(--dim); margin-top: 8px;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .lab-container { padding: 24px 16px 60px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .lab-nav { padding: 12px 16px; }
  .controls-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .controls-grid { grid-template-columns: 1fr; }
}