/*
  ServiceWatcher Dashboard Styles
  - Modern, accessible, responsive
  - Includes light/dark themes via [data-theme]
*/

:root {
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Fira Sans', 'Droid Sans', 'Helvetica Neue', Arial, sans-serif;
  --color-bg: #f5f7fb;
  --color-bg-alt: #ffffff;
  --color-border: #d9e1ec;
  --color-border-strong: #b4c2d4;
  --color-text: #1f2a37;
  --color-text-dim: #5a6b80;
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --color-success: #16a34a;
  --color-danger: #dc2626;
  --color-warning: #d97706;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.06), 0 1px 3px rgba(0,0,0,.1);
  --shadow-md: 0 4px 12px -2px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.08);
  --shadow-lg: 0 10px 25px -5px rgba(0,0,0,.12), 0 8px 10px -6px rgba(0,0,0,.10);
  --grid-gap: clamp(1rem, 2vw, 2rem);
  --transition-fast: 120ms ease;
  --transition-slow: 320ms cubic-bezier(.4,0,.2,1);
}

:root[data-theme='dark'] {
  --color-bg: #0f172a;
  --color-bg-alt: #1e293b;
  --color-border: #334155;
  --color-border-strong: #475569;
  --color-text: #f1f5f9;
  --color-text-dim: #94a3b8;
  --color-accent: #3b82f6;
  --color-accent-hover: #2563eb;
  --color-success: #22c55e;
  --color-danger: #ef4444;
  --color-warning: #f59e0b;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.5), 0 1px 3px rgba(0,0,0,.4);
  --shadow-md: 0 4px 12px -2px rgba(0,0,0,.5), 0 2px 4px rgba(0,0,0,.4);
  --shadow-lg: 0 10px 25px -5px rgba(0,0,0,.55), 0 8px 10px -6px rgba(0,0,0,.5);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.4;
  font-size: 16px;
}

body, button, input { font-family: inherit; }

img, svg { display: block; max-width: 100%; }

/* Layout */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .85rem clamp(1rem, 2.5vw, 2rem);
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(12px) saturate(1.3);
  background: linear-gradient(180deg, rgba(255,255,255,.72), rgba(255,255,255,.65));
}
:root[data-theme='dark'] .app-header {
  background: linear-gradient(180deg, rgba(30,41,59,.85), rgba(30,41,59,.75));
}

.brand {
  display: flex;
  gap: .6rem;
  align-items: center;
}
.logo { font-size: 1.55rem; filter: drop-shadow(0 2px 4px rgba(0,0,0,.25)); }
.app-title { font-size: 1.25rem; margin: 0; font-weight: 600; letter-spacing: .5px; }

.header-actions { display: flex; align-items: center; gap: .5rem; }

.layout {
  width: min(1400px, 100% - clamp(1rem, 2.5vw, 3rem));
  margin: 1.2rem auto 2.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
  gap: var(--grid-gap);
  /* Stretch children so they share the tallest height in the row */
  align-items: stretch;
}

.stats-panel, .services-panel {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.35rem 1.35rem;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  /* Make panel content fill available stretched height */
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.section-title {
  margin: 0 0 .9rem;
  font-size: 1.05rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 600;
  color: var(--color-text-dim);
}

/* Stat Card */
.stat-card {
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 85%);
  color: #fff;
  padding: 2.2rem 1.1rem 1.8rem;
  border-radius: var(--radius-md);
  position: relative;
  isolation: isolate;
  box-shadow: 0 4px 15px -2px rgba(0,0,0,.25);
  overflow: hidden;
}
.stat-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.35), transparent 65%);
  mix-blend-mode: overlay;
  pointer-events: none;
}
.stat-value { font-size: clamp(2.8rem, 7vw, 4.5rem); font-weight: 700; line-height: 1; letter-spacing: -1px; }
.stat-label { font-size: .85rem; letter-spacing: .15em; text-transform: uppercase; opacity: .85; font-weight: 500; }

/* Services */
.panel-header { display: flex; align-items: center; justify-content: space-between; gap: .75rem; flex-wrap: wrap; }
.legend { display: flex; gap: .9rem; font-size: .7rem; text-transform: uppercase; letter-spacing: .15em; font-weight: 600; }
.legend-item { display: inline-flex; align-items: center; gap: .35rem; }
.legend-item .dot { width: .65rem; height: .65rem; border-radius: 50%; display: inline-block; box-shadow: 0 0 0 2px var(--color-bg-alt), 0 0 4px rgba(0,0,0,.25); }
.legend-item.up .dot { background: var(--color-success); }
.legend-item.down .dot { background: var(--color-danger); }

.services-list { display: flex; flex-direction: column; gap: .6rem; margin-top: .25rem; flex: 1 1 auto; }
.service-row { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: .9rem; padding: .85rem 1rem .8rem; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 90%); position: relative; overflow: hidden; }
.service-row::before { content: ""; position: absolute; inset: 0; background: linear-gradient(120deg, transparent 10%, rgba(255,255,255,.18) 45%, transparent 85%); opacity: 0; transition: opacity var(--transition-slow); }
.service-row:hover::before { opacity: 1; }
.service-row:hover { border-color: var(--color-border-strong); }

.service-name { font-weight: 500; font-size: .95rem; letter-spacing: .3px; }
.service-link { font-size: .75rem; color: var(--color-accent); text-decoration: none; opacity: .85; }
.service-link:hover { opacity: 1; text-decoration: underline; }

.status-indicator { width: .85rem; height: .85rem; border-radius: 50%; box-shadow: 0 0 0 4px var(--color-bg-alt), 0 0 0 1px var(--color-border), 0 2px 4px rgba(0,0,0,.25); position: relative; }
.status-up .status-indicator { background: linear-gradient(135deg, var(--color-success), #15803d); }
.status-down .status-indicator { background: linear-gradient(135deg, var(--color-danger), #b91c1c); }
.status-warning .status-indicator { background: linear-gradient(135deg, var(--color-warning), #b45309); }

/* Animated pulse when down */
.status-down .status-indicator::after { content: ""; position: absolute; inset: 0; border-radius: inherit; background: currentColor; animation: pulse 1.8s ease-in-out infinite; opacity: .65; }
.status-down { animation: shake .9s cubic-bezier(.36,.07,.19,.97) both 1; }
@keyframes pulse { 0% { transform: scale(.9); opacity: .8; } 50% { transform: scale(1.35); opacity: 0; } 100% { transform: scale(.9); opacity: 0; } }
@keyframes shake { 10%, 90% { transform: translateX(-1px); } 20%, 80% { transform: translateX(2px); } 30%, 50%, 70% { transform: translateX(-4px); } 40%, 60% { transform: translateX(4px); } }

/* Footer */
.app-footer { text-align: center; padding: 2.5rem 1rem 2rem; font-size: .75rem; color: var(--color-text-dim); }

/* Buttons */
.btn { cursor: pointer; font-size: .9rem; border: 1px solid var(--color-border); background: var(--color-bg); color: var(--color-text); padding: .55rem .9rem; border-radius: var(--radius-md); display: inline-flex; align-items: center; gap: .4rem; font-weight: 500; transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast); }
.btn:hover { background: var(--color-bg-alt); }
.btn:active { transform: translateY(1px); }
.btn-ghost { background: transparent; }
.btn-ghost:hover { background: var(--color-bg-alt); }

/* Scrollbar (WebKit) */
:root { scrollbar-color: var(--color-border-strong) var(--color-bg); }
::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-border-strong); border-radius: 20px; border: 3px solid var(--color-bg); }
::-webkit-scrollbar-thumb:hover { background: var(--color-accent); }

/* Dark mode adjustments for gradients */
:root[data-theme='dark'] .stat-card { box-shadow: 0 8px 18px -4px rgba(0,0,0,.55); }
:root[data-theme='dark'] .service-row { background: linear-gradient(180deg, #0f172a 0%, #1e293b 95%); }
:root[data-theme='dark'] .service-row::before { background: linear-gradient(120deg, transparent 15%, rgba(255,255,255,.08) 45%, transparent 80%); }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* Small screens */
@media (max-width: 600px) {
  .stat-card { padding: 1.8rem 1rem 1.4rem; }
  .app-header { padding: .65rem .9rem; }
  .service-row { grid-template-columns: auto 1fr; }
}