/* ===================================================================
   Smart Home Dashboard — style.css
   Premium dark-mode design with glassmorphism + micro-animations
   =================================================================== */

/* ── Design Tokens ── */
:root {
  --bg-base:       hsl(225, 18%, 9%);
  --bg-surface:    hsl(225, 16%, 13%);
  --bg-glass:      hsla(225, 20%, 18%, 0.65);
  --bg-card:       hsl(225, 16%, 15%);

  --color-accent:  hsl(218, 90%, 60%);
  --color-amber:   hsl(38, 95%, 55%);
  --color-green:   hsl(155, 70%, 48%);
  --color-red:     hsl(355, 72%, 55%);
  --color-teal:    hsl(190, 80%, 50%);

  --text-primary:  hsl(220, 20%, 92%);
  --text-secondary:hsl(220, 15%, 60%);
  --text-muted:    hsl(220, 12%, 42%);

  --border:        hsla(220, 20%, 100%, 0.07);
  --border-hover:  hsla(220, 20%, 100%, 0.14);

  --radius-sm:  8px;
  --radius-md:  14px;
  --radius-lg:  20px;
  --radius-xl:  28px;

  --shadow-card:   0 4px 24px hsla(0, 0%, 0%, 0.4);
  --shadow-glow-amber: 0 0 28px hsla(38, 95%, 55%, 0.35);
  --shadow-glow-green: 0 0 28px hsla(155, 70%, 48%, 0.35);
  --shadow-glow-red:   0 0 28px hsla(355, 72%, 55%, 0.35);
  --shadow-glow-blue:  0 0 28px hsla(218, 90%, 60%, 0.35);

  --transition-fast:   0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:   0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background-color: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  background-image:
    radial-gradient(ellipse 80% 50% at 20% 0%, hsla(218, 90%, 50%, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 100%, hsla(270, 70%, 50%, 0.06) 0%, transparent 60%);
}

/* ── Typography ── */
h1, h2, h3 { line-height: 1.25; font-weight: 600; letter-spacing: -0.02em; }
h1 { font-size: 1.35rem; }
h2 { font-size: 1rem; font-weight: 500; }
h3 { font-size: 0.95rem; }

/* ── Header ── */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: hsla(225, 18%, 9%, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 0 1.5rem;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand { display: flex; align-items: center; gap: 0.6rem; }

.brand-icon {
  font-size: 1.5rem;
  filter: drop-shadow(0 0 6px hsla(38, 95%, 55%, 0.5));
  animation: pulse-icon 3s ease-in-out infinite;
}

@keyframes pulse-icon {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}

.brand-name { color: var(--text-primary); letter-spacing: -0.03em; }

.header-meta { display: flex; align-items: center; gap: 1.25rem; }

.status-badge {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  transition: color var(--transition-normal);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: background var(--transition-normal), box-shadow var(--transition-normal);
}

.status-badge.connected .status-dot {
  background: var(--color-green);
  box-shadow: 0 0 6px var(--color-green);
  animation: dot-pulse 2s ease-in-out infinite;
}

@keyframes dot-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.status-badge.connected { color: var(--text-primary); }

.clock {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  font-variant-numeric: tabular-nums;
}

/* ── Dashboard Layout ── */
.dashboard {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

/* ── Section ── */
.section { display: flex; flex-direction: column; gap: 1.1rem; }

.section-title {
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* ── Device Grid ── */
.device-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

/* ── Device Card ── */
.device-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.25rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  cursor: default;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal), transform var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.device-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  transition: opacity var(--transition-slow);
  pointer-events: none;
}

.device-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

/* Card: light ON */
.device-card.light-on {
  border-color: hsla(38, 95%, 55%, 0.4);
  box-shadow: var(--shadow-glow-amber), var(--shadow-card);
}
.device-card.light-on::before {
  background: radial-gradient(ellipse at top, hsla(38, 95%, 55%, 0.08) 0%, transparent 70%);
  opacity: 1;
}

/* Card: locked */
.device-card.locked {
  border-color: hsla(355, 72%, 55%, 0.35);
  box-shadow: var(--shadow-glow-red), var(--shadow-card);
}

/* Card: unlocked */
.device-card.unlocked {
  border-color: hsla(155, 70%, 48%, 0.4);
  box-shadow: var(--shadow-glow-green), var(--shadow-card);
}

.card-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--bg-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  transition: transform var(--transition-fast);
}
.device-card:hover .card-icon-wrap { transform: scale(1.08) rotate(-3deg); }

.card-body { display: flex; flex-direction: column; gap: 0.25rem; flex: 1; }

.card-title { font-size: 0.95rem; font-weight: 600; color: var(--text-primary); }
.card-subtitle { font-size: 0.75rem; color: var(--text-muted); font-weight: 400; }

.card-status-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 0.4rem;
}

/* ── Status Pill ── */
.status-pill {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: hsla(220, 15%, 100%, 0.08);
  color: var(--text-muted);
  border: 1px solid var(--border);
  transition: background var(--transition-normal), color var(--transition-normal), border-color var(--transition-normal);
}

.status-pill.on {
  background: hsla(38, 95%, 55%, 0.15);
  color: var(--color-amber);
  border-color: hsla(38, 95%, 55%, 0.4);
}

.status-pill.lock-pill.locked-state {
  background: hsla(355, 72%, 55%, 0.15);
  color: var(--color-red);
  border-color: hsla(355, 72%, 55%, 0.4);
}

.status-pill.lock-pill.unlocked-state {
  background: hsla(155, 70%, 48%, 0.15);
  color: var(--color-green);
  border-color: hsla(155, 70%, 48%, 0.4);
}

/* ── Color Swatch ── */
.color-swatch {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--border-hover);
  background: #ffffff;
  transition: background var(--transition-normal), border-color var(--transition-normal), transform var(--transition-fast);
  flex-shrink: 0;
}
.color-swatch:hover { transform: scale(1.3); }

/* ── Toggle Button ── */
.toggle-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.5rem 0;
  border-radius: var(--radius-sm);
  cursor: pointer;
  letter-spacing: 0.04em;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
  width: 100%;
}
.toggle-btn:hover {
  background: var(--bg-glass);
  border-color: var(--border-hover);
  color: var(--text-primary);
  transform: scale(1.02);
}
.toggle-btn:active { transform: scale(0.98); }

/* ── Thermostat Card ── */
.thermostat-card {
  border-color: hsla(218, 90%, 60%, 0.3);
  box-shadow: var(--shadow-glow-blue), var(--shadow-card);
}

.temp-display {
  display: flex;
  align-items: baseline;
  gap: 0.2rem;
  margin-top: 0.4rem;
}

.temp-value {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.04em;
  transition: color var(--transition-normal);
}

.temp-unit {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.temp-bar-wrap {
  height: 4px;
  background: var(--bg-surface);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 0.5rem;
}

.temp-bar {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-teal), var(--color-accent), var(--color-amber), var(--color-red));
  background-size: 300% 100%;
  transition: width var(--transition-slow);
}

.temp-controls {
  display: flex;
  gap: 0.5rem;
}

.temp-btn {
  flex: 1;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1.1rem;
  font-weight: 600;
  padding: 0.4rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}
.temp-btn:hover { background: var(--bg-glass); border-color: var(--border-hover); transform: scale(1.05); }
.temp-btn:active { transform: scale(0.95); }

/* ── Scenes ── */
.scenes-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.scene-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.4rem 1.2rem;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  color: var(--text-primary);
  transition: background var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal), transform var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.scene-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, hsla(218, 90%, 60%, 0.05) 100%);
  opacity: 0;
  transition: opacity var(--transition-normal);
  pointer-events: none;
}

.scene-btn:hover {
  border-color: var(--border-hover);
  background: var(--bg-glass);
  box-shadow: var(--shadow-glow-blue), var(--shadow-card);
  transform: translateY(-3px);
}
.scene-btn:hover::after { opacity: 1; }
.scene-btn:active { transform: translateY(-1px); }

.scene-icon { font-size: 1.8rem; filter: drop-shadow(0 2px 8px hsla(0,0%,0%,0.5)); }

.scene-label {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-top: 0.3rem;
}

.scene-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
}

/* ── Activity Log ── */
.activity-log {
  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  list-style: none;
  max-height: 320px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.log-entry {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.65rem 1.1rem;
  font-size: 0.8rem;
  border-bottom: 1px solid var(--border);
  animation: log-in 0.3s ease-out;
  transition: background var(--transition-fast);
}
.log-entry:last-child { border-bottom: none; }
.log-entry:hover { background: var(--bg-glass); }

@keyframes log-in {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.log-entry--idle { color: var(--text-muted); font-style: italic; }

.log-time {
  font-variant-numeric: tabular-nums;
  color: var(--text-muted);
  flex-shrink: 0;
  font-size: 0.72rem;
}

.log-tool {
  font-weight: 600;
  color: var(--color-accent);
  font-size: 0.72rem;
  font-family: 'Courier New', monospace;
  padding: 0.1rem 0.4rem;
  background: hsla(218, 90%, 60%, 0.1);
  border-radius: 4px;
  flex-shrink: 0;
}

.log-msg { color: var(--text-secondary); }

.clear-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}
.clear-btn:hover { color: var(--text-primary); border-color: var(--border-hover); }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  background: var(--bg-surface);
  border: 1px solid var(--border-hover);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px hsla(0,0%,0%,0.5);
  transition: transform var(--transition-normal);
  pointer-events: none;
  z-index: 200;
  white-space: nowrap;
}

.toast.show { transform: translateX(-50%) translateY(0); }

/* ── Ripple Effect ── */
@keyframes ripple {
  0%   { transform: scale(0); opacity: 0.4; }
  100% { transform: scale(3); opacity: 0; }
}

.ripple {
  position: absolute;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  background: hsla(218, 90%, 60%, 0.3);
  pointer-events: none;
  animation: ripple 0.6s ease-out forwards;
}

/* ── Responsive ── */
@media (max-width: 600px) {
  .header-inner { height: 56px; }
  .dashboard { padding: 1.25rem 1rem 3rem; gap: 2rem; }
  .device-grid { grid-template-columns: 1fr 1fr; }
  .scenes-row { grid-template-columns: 1fr; }
  .brand-name { font-size: 1.1rem; }
  .clock { display: none; }
}

@media (max-width: 380px) {
  .device-grid { grid-template-columns: 1fr; }
}