/*  molpath.css — shared design system for molpath.tools apps
 *  Import via:  <link rel="stylesheet" href="/static/molpath.css">
 *  Then add app-specific overrides in a second stylesheet.
 *
 *  Fonts: load in your HTML <head>:
 *    <link href="https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=Space+Grotesk:wght@400;500;600;700&display=swap" rel="stylesheet">
 */

/* =================================================================
   1. Design Tokens
   ================================================================= */

:root {
  /* --- Palette --- */
  --mp-bg-1: #f5f3eb;
  --mp-bg-2: #e3dbca;
  --mp-panel: #fffef9;
  --mp-ink: #17140f;
  --mp-ink-soft: #594f40;
  --mp-accent: #1f6f61;
  --mp-accent-hover: #17584d;
  --mp-accent-2: #c7642f;
  --mp-border: #c8bfae;
  --mp-danger: #8f1f1f;

  /* --- Semantic --- */
  --mp-success-bg: #e8f5e9;
  --mp-success-border: #4caf50;
  --mp-success-ink: #1b5e20;
  --mp-info-bg: #e3f2fd;
  --mp-info-border: #2196f3;
  --mp-info-ink: #0d47a1;
  --mp-warning-bg: #fff3e0;
  --mp-warning-border: #ff9800;
  --mp-warning-ink: #e65100;
  --mp-error-bg: #fce4ec;
  --mp-error-border: #e57373;
  --mp-error-ink: #b71c1c;

  /* --- Typography --- */
  --mp-sans: "Space Grotesk", system-ui, sans-serif;
  --mp-mono: "IBM Plex Mono", ui-monospace, monospace;
  --mp-fs-xs: 0.75rem;
  --mp-fs-sm: 0.84rem;
  --mp-fs-base: 0.94rem;
  --mp-fs-lg: 1.1rem;
  --mp-fs-xl: clamp(1.3rem, 2.2vw, 2rem);

  /* --- Spacing --- */
  --mp-space-xs: 4px;
  --mp-space-sm: 8px;
  --mp-space-md: 14px;
  --mp-space-lg: 22px;
  --mp-space-xl: 28px;

  /* --- Radii --- */
  --mp-radius-sm: 8px;
  --mp-radius-md: 10px;
  --mp-radius-lg: 14px;

  /* --- Shadows --- */
  --mp-shadow-card: 0 9px 26px rgba(36, 24, 4, 0.08);
  --mp-shadow-hover: 0 2px 8px rgba(31, 111, 97, 0.1);

  /* --- Transitions --- */
  --mp-transition: 0.15s ease;
}


/* =================================================================
   2. Reset & Base
   ================================================================= */

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--mp-sans);
  font-size: var(--mp-fs-base);
  color: var(--mp-ink);
  background:
    radial-gradient(circle at 5% 5%, #fff9de 0%, transparent 35%),
    radial-gradient(circle at 95% 12%, #f4c9ab 0%, transparent 42%),
    linear-gradient(145deg, var(--mp-bg-1), var(--mp-bg-2));
}

h1, h2, h3, h4 { margin: 0; }


/* =================================================================
   3. Layout
   ================================================================= */

.mp-layout {
  width: 96vw;
  max-width: 1400px;
  margin: var(--mp-space-xl) auto 40px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.mp-background-glow {
  position: fixed;
  width: 40vw;
  height: 40vw;
  right: -10vw;
  bottom: -15vw;
  background: radial-gradient(circle, rgba(31, 111, 97, 0.16), transparent 60%);
  pointer-events: none;
  z-index: -1;
}


/* =================================================================
   4. Panel (the main building block)
   ================================================================= */

.mp-panel {
  background: var(--mp-panel);
  border: 1px solid var(--mp-border);
  border-radius: var(--mp-radius-lg);
  padding: var(--mp-space-lg) var(--mp-space-xl);
  box-shadow: var(--mp-shadow-card);
}


/* =================================================================
   5. Typography helpers
   ================================================================= */

.mp-eyebrow {
  margin: 0;
  font-size: var(--mp-fs-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mp-accent);
}

.mp-subtitle {
  margin: 0;
  color: var(--mp-ink-soft);
}

.mp-section-title {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--mp-ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.mp-mono {
  font-family: var(--mp-mono);
}

.mp-soft {
  color: var(--mp-ink-soft);
}


/* =================================================================
   6. Form controls
   ================================================================= */

input, select, button {
  font-family: var(--mp-sans);
  font-size: var(--mp-fs-base);
}

input, select {
  padding: 10px 11px;
  border-radius: var(--mp-radius-sm);
  border: 1px solid var(--mp-border);
  background: #fff;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--mp-accent);
  box-shadow: 0 0 0 2px rgba(31, 111, 97, 0.15);
}

button {
  border: 1px solid var(--mp-border);
  border-radius: var(--mp-radius-sm);
  padding: 9px 12px;
  cursor: pointer;
  transition: background var(--mp-transition), border-color var(--mp-transition);
}

button:hover { border-color: var(--mp-ink-soft); }

.mp-btn-primary {
  background: var(--mp-accent);
  color: #fff;
  border-color: transparent;
}

.mp-btn-primary:hover {
  background: var(--mp-accent-hover);
}

.mp-btn-secondary {
  background: #f3efe4;
}

.mp-btn-danger {
  background: #f9e8e8;
  color: var(--mp-danger);
}


/* =================================================================
   7. Cards
   ================================================================= */

.mp-card {
  border: 1px solid var(--mp-border);
  border-radius: var(--mp-radius-md);
  padding: 11px;
  background: #fff;
  transition: border-color var(--mp-transition), box-shadow var(--mp-transition);
}

.mp-card:hover {
  border-color: var(--mp-accent);
  box-shadow: var(--mp-shadow-hover);
}

.mp-card.active {
  border-color: var(--mp-accent);
}


/* =================================================================
   8. Alerts / banners
   ================================================================= */

.mp-alert {
  border-radius: var(--mp-radius-md);
  padding: var(--mp-space-md) 18px;
  border: 1px solid;
}

.mp-alert-success { background: var(--mp-success-bg); border-color: var(--mp-success-border); color: var(--mp-success-ink); }
.mp-alert-info    { background: var(--mp-info-bg);    border-color: var(--mp-info-border);    color: var(--mp-info-ink); }
.mp-alert-warning { background: var(--mp-warning-bg); border-color: var(--mp-warning-border); color: var(--mp-warning-ink); }
.mp-alert-error   { background: var(--mp-error-bg);   border-color: var(--mp-error-border);   color: var(--mp-error-ink); }

.mp-warning-bar {
  padding: var(--mp-space-sm) 10px;
  font-size: 0.86rem;
  border-left: 4px solid var(--mp-accent-2);
  background: #fff3e8;
}

.mp-error-box {
  background: #fde8e8;
  border: 1px solid #efb6b6;
  color: var(--mp-danger);
  padding: 11px;
  border-radius: var(--mp-radius-sm);
  font-family: var(--mp-mono);
  font-size: 0.8rem;
  white-space: pre-wrap;
}


/* =================================================================
   9. Progress / metric bars
   ================================================================= */

.mp-bar-track {
  height: 6px;
  background: #ece8dc;
  border-radius: 3px;
  overflow: hidden;
}

.mp-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--mp-accent);
  transition: width 0.3s ease;
}

.mp-bar-fill.depleted {
  background: var(--mp-accent-2);
}


/* =================================================================
   10. Utilities
   ================================================================= */

.mp-hidden { display: none; }

.mp-grid { display: grid; gap: var(--mp-space-sm); }
.mp-flex { display: flex; gap: var(--mp-space-sm); align-items: center; }
.mp-between { justify-content: space-between; }

@keyframes mp-fade-up {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.mp-animate-in {
  animation: mp-fade-up 460ms ease both;
}


/* =================================================================
   11. Responsive
   ================================================================= */

@media (max-width: 700px) {
  .mp-layout { gap: 12px; }
  .mp-panel  { padding: var(--mp-space-md) 16px; }
}
