/* ============================================================
   FILAMENT DASHBOARD — STYLE
   Design: Industrial dark theme with material-specific accents
   ============================================================ */

/* --- RESET & TOKENS ---------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);

  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem;
  --space-4: 1rem;    --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem;    --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem;   --space-20: 5rem;   --space-24: 6rem;

  --radius-sm: 0.375rem; --radius-md: 0.5rem;
  --radius-lg: 0.75rem;  --radius-xl: 1rem;
  --radius-full: 9999px;

  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --content-default: 1100px;

  /* Material accent colors */
  --color-accent-pla:  #4ade80;   /* green */
  --color-accent-petg: #38bdf8;   /* sky blue */
  --color-accent-abs:  #fb923c;   /* orange */

  --font-body: 'Space Grotesk', 'Helvetica Neue', sans-serif;
  --font-mono: 'Space Mono', 'Courier New', monospace;
}

/* LIGHT MODE */
:root, [data-theme="light"] {
  --color-bg:        #f4f3ef;
  --color-surface:   #fafaf7;
  --color-surface-2: #ffffff;
  --color-surface-offset: #eceae5;
  --color-border:    #d8d6d0;
  --color-divider:   #e2e0db;
  --color-text:      #1a1815;
  --color-text-muted: #6b6966;
  --color-text-faint: #aaa9a5;
  --color-primary:   #01696f;
  --color-primary-hover: #0c4e54;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.07);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.09);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
}

/* DARK MODE */
[data-theme="dark"] {
  --color-bg:        #111110;
  --color-surface:   #1a1918;
  --color-surface-2: #202020;
  --color-surface-offset: #161514;
  --color-border:    #2e2d2b;
  --color-divider:   #252422;
  --color-text:      #e0dfdc;
  --color-text-muted: #858380;
  --color-text-faint: #4a4947;
  --color-primary:   #4f98a3;
  --color-primary-hover: #227f8b;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.25);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.35);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
}

/* SYSTEM PREF */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:        #111110;
    --color-surface:   #1a1918;
    --color-surface-2: #202020;
    --color-surface-offset: #161514;
    --color-border:    #2e2d2b;
    --color-divider:   #252422;
    --color-text:      #e0dfdc;
    --color-text-muted: #858380;
    --color-text-faint: #4a4947;
    --color-primary:   #4f98a3;
    --color-primary-hover: #227f8b;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.25);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.35);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
  }
}

/* --- BASE --------------------------------------------------- */
html {
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-16);
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
}

img, svg { display: block; max-width: 100%; height: auto; }
ul { list-style: none; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
table { border-collapse: collapse; width: 100%; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); }

.container {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

/* --- HEADER ------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 85%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
}

.header-inner {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-6);
  padding-block: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.logo-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  width: 32px;
  height: 32px;
  color: var(--color-text-muted);
}

.logo-text {
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-family: var(--font-mono);
}

.header-nav {
  display: flex;
  gap: var(--space-6);
  margin-left: auto;
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.nav-link:hover { color: var(--color-text); }

.theme-toggle {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: color var(--transition), background var(--transition);
  flex-shrink: 0;
}

.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface-offset);
}

@media (max-width: 640px) {
  .header-nav { display: none; }
}

/* --- HERO --------------------------------------------------- */
.hero {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
  border-bottom: 1px solid var(--color-divider);
  background: radial-gradient(ellipse at top left, color-mix(in oklab, var(--color-accent-petg) 8%, var(--color-bg)), var(--color-bg) 60%);
}

.hero-inner {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.hero-eyebrow {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.hero-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-5);
}

.vs {
  color: var(--color-text-faint);
  font-weight: 300;
  font-size: 0.65em;
  vertical-align: middle;
}

.hero-sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.filament-pills {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  border: 1.5px solid;
}

.pill.pla  { color: var(--color-accent-pla);  border-color: var(--color-accent-pla);  background: color-mix(in oklab, var(--color-accent-pla) 10%, transparent); }
.pill.petg { color: var(--color-accent-petg); border-color: var(--color-accent-petg); background: color-mix(in oklab, var(--color-accent-petg) 10%, transparent); }
.pill.abs  { color: var(--color-accent-abs);  border-color: var(--color-accent-abs);  background: color-mix(in oklab, var(--color-accent-abs) 10%, transparent); }

/* --- SECTION HEADERS --------------------------------------- */
.section-title {
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
}

.section-sub {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-bottom: var(--space-10);
  line-height: 1.7;
}

/* --- KPI SECTION ------------------------------------------- */
.kpi-section {
  padding-block: clamp(var(--space-12), 6vw, var(--space-20));
  border-bottom: 1px solid var(--color-divider);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-5);
}

.kpi-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: box-shadow var(--transition), transform var(--transition);
}

.kpi-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.kpi-icon {
  color: var(--color-text-muted);
}

.kpi-label {
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.kpi-bars {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.kpi-bar-row {
  display: grid;
  grid-template-columns: 40px 1fr auto;
  align-items: center;
  gap: var(--space-3);
}

.kpi-mat {
  font-size: var(--text-xs);
  font-weight: 700;
  font-family: var(--font-mono);
}

.kpi-bar-track {
  height: 8px;
  background: var(--color-surface-offset);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.kpi-bar-fill {
  height: 100%;
  width: var(--w, 0%);
  border-radius: var(--radius-full);
  transition: width 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.kpi-val {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.kpi-note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  line-height: 1.5;
  border-top: 1px solid var(--color-divider);
  padding-top: var(--space-3);
  margin-top: auto;
}

/* Material text colors */
.pla-text  { color: var(--color-accent-pla);  }
.petg-text { color: var(--color-accent-petg); }
.abs-text  { color: var(--color-accent-abs);  }

/* Bar fill colors */
.pla-fill  { background: var(--color-accent-pla);  }
.petg-fill { background: var(--color-accent-petg); }
.abs-fill  { background: var(--color-accent-abs);  }

/* Dot colors */
.pla-bg  { background: var(--color-accent-pla);  }
.petg-bg { background: var(--color-accent-petg); }
.abs-bg  { background: var(--color-accent-abs);  }

/* --- RADAR SECTION ----------------------------------------- */
.radar-section {
  padding-block: clamp(var(--space-12), 6vw, var(--space-20));
  border-bottom: 1px solid var(--color-divider);
}

.radar-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-12);
  flex-wrap: wrap;
}

.radar-wrap canvas {
  max-width: 480px;
  width: 100% !important;
}

.radar-legend {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  font-weight: 600;
  font-family: var(--font-mono);
}

.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

/* --- BAR SECTION ------------------------------------------- */
.bar-section {
  padding-block: clamp(var(--space-12), 6vw, var(--space-20));
  border-bottom: 1px solid var(--color-divider);
}

.bar-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  position: relative;
  height: 340px;
}

.bar-wrap canvas {
  height: 100% !important;
}

/* --- SETTINGS TABLE ---------------------------------------- */
.settings-section {
  padding-block: clamp(var(--space-12), 6vw, var(--space-20));
  border-bottom: 1px solid var(--color-divider);
}

.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.settings-table {
  background: var(--color-surface);
  width: 100%;
  min-width: 560px;
}

.settings-table thead {
  background: var(--color-surface-offset);
}

.settings-table th {
  padding: var(--space-4) var(--space-6);
  text-align: left;
  font-size: var(--text-xs);
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
}

.settings-table th.pla-text  { color: var(--color-accent-pla);  }
.settings-table th.petg-text { color: var(--color-accent-petg); }
.settings-table th.abs-text  { color: var(--color-accent-abs);  }

.settings-table td {
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-sm);
  border-bottom: 1px solid var(--color-divider);
  vertical-align: middle;
}

.settings-table tr:last-child td { border-bottom: none; }

.settings-table tr:hover td {
  background: var(--color-surface-offset);
}

.badge-wrap { padding-block: var(--space-2); }

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  font-family: var(--font-mono);
}

.badge-low  { background: color-mix(in oklab, #4ade80 15%, transparent); color: #22863a; }
.badge-med  { background: color-mix(in oklab, #fbbf24 15%, transparent); color: #92660c; }
.badge-high { background: color-mix(in oklab, #f87171 15%, transparent); color: #a02020; }

[data-theme="dark"] .badge-low  { background: color-mix(in oklab, #4ade80 15%, transparent); color: #86efac; }
[data-theme="dark"] .badge-med  { background: color-mix(in oklab, #fbbf24 15%, transparent); color: #fde68a; }
[data-theme="dark"] .badge-high { background: color-mix(in oklab, #f87171 15%, transparent); color: #fca5a5; }

/* --- USE CASES --------------------------------------------- */
.usecases-section {
  padding-block: clamp(var(--space-12), 6vw, var(--space-20));
  border-bottom: 1px solid var(--color-divider);
}

.usecases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-5);
}

.usecase-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  transition: box-shadow var(--transition), transform var(--transition);
}

.usecase-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.pla-card  { border-top: 3px solid var(--color-accent-pla);  }
.petg-card { border-top: 3px solid var(--color-accent-petg); }
.abs-card  { border-top: 3px solid var(--color-accent-abs);  }

.usecase-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.usecase-pill {
  font-size: var(--text-xs);
  font-weight: 800;
  font-family: var(--font-mono);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
}

.usecase-pill.pla  { background: color-mix(in oklab, var(--color-accent-pla) 18%, transparent);  color: var(--color-accent-pla);  }
.usecase-pill.petg { background: color-mix(in oklab, var(--color-accent-petg) 18%, transparent); color: var(--color-accent-petg); }
.usecase-pill.abs  { background: color-mix(in oklab, var(--color-accent-abs) 18%, transparent);  color: var(--color-accent-abs);  }

.usecase-tagline {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-style: italic;
}

.usecase-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

.best-title, .worst-title {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.best-title  { color: #22863a; }
.worst-title { color: #a02020; }
[data-theme="dark"] .best-title  { color: #86efac; }
[data-theme="dark"] .worst-title { color: #fca5a5; }

.usecase-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.usecase-list li {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
  padding-left: var(--space-3);
  position: relative;
}

.usecase-list li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--color-text-faint);
}

.usecase-verdict {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-divider);
  padding-top: var(--space-4);
  line-height: 1.6;
  font-style: italic;
}

/* --- DECISION FLOW ----------------------------------------- */
.decision-section {
  padding-block: clamp(var(--space-12), 6vw, var(--space-20));
  border-bottom: 1px solid var(--color-divider);
}

.flow-tree {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
  overflow-x: auto;
  padding-bottom: var(--space-4);
}

.flow-node {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
  text-align: center;
  max-width: 400px;
  box-shadow: var(--shadow-sm);
}

.flow-start {
  background: var(--color-surface-2);
  border-color: var(--color-primary);
  color: var(--color-text);
}

.flow-q {
  font-size: var(--text-xs);
  max-width: 280px;
}

.flow-branches {
  display: flex;
  gap: var(--space-8);
  align-items: flex-start;
  flex-wrap: wrap;
  justify-content: center;
}

.flow-branch {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.flow-label {
  font-size: var(--text-xs);
  font-weight: 700;
  font-family: var(--font-mono);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
}

.no-label  { background: color-mix(in oklab, #6b7280 20%, transparent); color: var(--color-text-muted); }
.yes-label { background: color-mix(in oklab, #4ade80 15%, transparent); color: #22863a; }
[data-theme="dark"] .yes-label { color: #86efac; }

.flow-result {
  font-size: var(--text-xs);
  font-weight: 700;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-lg);
  text-align: center;
  max-width: 220px;
}

.pla-result  { background: color-mix(in oklab, var(--color-accent-pla) 15%, transparent);  color: var(--color-accent-pla);  border: 1px solid color-mix(in oklab, var(--color-accent-pla) 30%, transparent); }
.petg-result { background: color-mix(in oklab, var(--color-accent-petg) 15%, transparent); color: var(--color-accent-petg); border: 1px solid color-mix(in oklab, var(--color-accent-petg) 30%, transparent); }
.abs-result  { background: color-mix(in oklab, var(--color-accent-abs) 15%, transparent);  color: var(--color-accent-abs);  border: 1px solid color-mix(in oklab, var(--color-accent-abs) 30%, transparent); }

/* --- FOOTER ------------------------------------------------- */
.site-footer {
  padding-block: var(--space-8);
  border-top: 1px solid var(--color-divider);
}

.footer-inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.footer-brand {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.footer-note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer-note a {
  color: var(--color-text-faint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-note a:hover { color: var(--color-text-muted); }

/* --- RESPONSIVE --------------------------------------------- */
@media (max-width: 480px) {
  .usecase-body {
    grid-template-columns: 1fr;
  }
  .flow-branches {
    flex-direction: column;
    align-items: center;
  }
  .radar-wrap {
    flex-direction: column;
  }
  .radar-legend {
    flex-direction: row;
    gap: var(--space-6);
  }
}

/* --- ANIMATIONS -------------------------------------------- */
@keyframes bar-grow {
  from { width: 0; }
  to   { width: var(--w, 100%); }
}

.kpi-bar-fill.animated {
  animation: bar-grow 0.9s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}