:root {
  --bg-color: #1c1c1e;
  --surface-color: #2c2c2e;
  --surface-active: #3a3a3c;
  --border-color: #3a3a3c;
  --text-primary: #ffffff;
  --text-secondary: #8e8e93;
  --power-red: #ff453a;
  --power-green: #30d158;
  --power-glow: rgba(255, 69, 58, 0.4);
  --power-glow-on: rgba(48, 209, 88, 0.4);
  --brand-blue: #0a84ff;
  --status-green: #30d158;
  --font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  height: 100dvh;
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-family);
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.remote-container {
  width: 100%;
  max-width: 380px;
  height: 100%;
  max-height: 844px;
  padding: env(safe-area-inset-top, 16px) 20px env(safe-area-inset-bottom, 16px) 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
  position: relative;
}

/* Header */
.remote-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 8px;
}

.brand {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--text-primary);
  opacity: 0.9;
}

.status-badge {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 12px;
  background-color: rgba(48, 209, 88, 0.15);
  color: var(--status-green);
  transition: all 0.3s ease;
}

.status-badge.error {
  background-color: rgba(255, 69, 58, 0.15);
  color: var(--power-red);
}

/* Toast Notification Banner */
.toast {
  position: absolute;
  top: 60px;
  background-color: rgba(44, 44, 46, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 100;
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.toast.hidden {
  opacity: 0;
  transform: translateY(-10px);
  pointer-events: none;
}

/* General Row */
.remote-row {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

/* Buttons */
.btn {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  outline: none;
  transition: transform 0.1s ease, background-color 0.15s ease, box-shadow 0.15s ease, opacity 0.2s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.btn:active, .btn.active {
  transform: scale(0.93);
  background-color: var(--surface-active);
}

.btn-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
}

.btn-labeled {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.btn-label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  opacity: 0.8;
}

/* Power button styling */
.btn-power {
  background: rgba(255, 69, 58, 0.15);
  border-color: rgba(255, 69, 58, 0.4);
  color: var(--power-red);
}

.btn-power.power-on {
  background: rgba(48, 209, 88, 0.2);
  border-color: rgba(48, 209, 88, 0.5);
  color: var(--power-green);
  box-shadow: 0 0 16px var(--power-glow-on);
}

.btn-power:active {
  transform: scale(0.93);
}

/* Unmapped muted buttons */
.btn-unmapped {
  opacity: 0.35;
  filter: grayscale(0.8);
}

.btn-unmapped:active {
  opacity: 0.5;
  transform: scale(0.95);
}

/* LED Decorative */
.led-indicator {
  display: flex;
  gap: 6px;
  align-items: center;
}

.led-indicator .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--text-secondary);
  opacity: 0.5;
}

/* D-Pad Cluster */
.dpad-cluster {
  position: relative;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: 1fr 1fr 1fr;
  overflow: hidden;
}

.dpad-btn {
  background: transparent;
  border: none;
  color: var(--text-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  outline: none;
  transition: background-color 0.15s ease, transform 0.1s ease;
}

.dpad-btn:active, .dpad-btn.active {
  background-color: var(--surface-active);
}

.dpad-up {
  grid-column: 2;
  grid-row: 1;
  padding-bottom: 8px;
}

.dpad-down {
  grid-column: 2;
  grid-row: 3;
  padding-top: 8px;
}

.dpad-left {
  grid-column: 1;
  grid-row: 2;
  padding-right: 8px;
}

.dpad-right {
  grid-column: 3;
  grid-row: 2;
  padding-left: 8px;
}

.dpad-ok {
  grid-column: 2;
  grid-row: 2;
  border-radius: 50%;
  background: #222224;
  border: 1px solid var(--border-color);
  font-weight: 700;
  font-size: 1.1rem;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.5);
  margin: 6px;
}

.dpad-ok:active, .dpad-ok.active {
  transform: scale(0.92);
  background: var(--surface-active);
}

/* Volume Row */
.volume-row {
  gap: 14px;
}

.btn-vol {
  flex: 1;
  height: 60px;
  border-radius: 18px;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
}

/* Brand Button */
.btn-brand {
  width: 72px;
  height: 64px;
  border-radius: 20px;
  background: linear-gradient(135deg, #2c2c2e 0%, #1f1f21 100%);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.kivi-logo {
  font-weight: 900;
  font-size: 0.75rem;
  letter-spacing: 1px;
  color: #5e5ce6;
}