:root {
  color-scheme: light;

  /* ═══ PRESTIGE PALETTE — Daylight Clubhouse ═══ */

  /* Backgrounds - Warm ivory daylight */
  --bg: #f6f1e8;
  --bg-elevated: #fbf7f0;

  /* Panel surfaces - Clean parchment */
  --panel: rgba(255, 252, 246, 0.92);
  --panel-border: rgba(122, 104, 74, 0.28);

  /* Accent - Aged brass */
  --accent: #a8772a;
  --accent-soft: rgba(168, 119, 42, 0.18);
  --accent-bright: #c89a49;

  /* Golf Greens - Sunlit turf tones */
  --green-dark: #d7e4d0;
  --green-mid: #c6dbc1;
  --green-bright: #b7d3ae;
  --green-accent: #3f7a52;

  /* Text - Charcoal ink */
  --text: #1a1f1a;
  --text-muted: #4f564c;
  --text-subtle: #7a8176;

  /* Heritage accents */
  --brass: #a8853f;
  --pewter: #8b8f90;
  --burgundy: #8b3a3a;

  /* Typography */
  --font-display: "Playfair Display", Georgia, serif;
  --font-body: "DM Sans", -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

/* Utility class for hiding elements */
.hidden {
  display: none !important;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-weight: 400;
  letter-spacing: 0.3px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  height: 72px;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--green-dark);
  border-bottom: 1px solid rgba(180, 162, 130, 0.25);
  /* Subtle top highlight for depth */
  background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.02) 0%, transparent 100%);
}

.brand {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text);
  /* Subtle gold ambient glow */
  text-shadow: 0 0 40px rgba(201, 169, 98, 0.12);
}

.sub {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-subtle);
}

#main {
  position: relative;
  flex: 1;
  display: flex;
}

#green-stage {
  position: relative;
  flex: 1;
  display: flex;
  align-items: stretch;
  justify-content: center;
  overflow: hidden;
  /* Refined green with subtle vignette */
  background: radial-gradient(
    ellipse 120% 100% at 50% 30%,
    var(--green-mid) 0%,
    var(--green-dark) 50%,
    var(--bg) 100%
  );
}

#green-canvas,
#overlay-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

#green-canvas {
  background: transparent;
  touch-action: none;
}

#overlay-canvas {
  pointer-events: none;
}

#hud {
  position: absolute;
  top: 20px;
  left: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 10;
  pointer-events: auto;
}

/* ═══ UI PANELS — Refined Clubhouse Aesthetic ═══ */

.status {
  padding: 12px 16px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.4px;
  color: var(--text);
  /* Subtle depth */
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    0 4px 16px rgba(0, 0, 0, 0.3);
}

.controls {
  padding: 14px 16px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  width: 240px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    0 4px 16px rgba(0, 0, 0, 0.3);
}

.controls-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.controls-title {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--accent);
}

.controls-toggle {
  padding: 6px 10px;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text);
  background: var(--green-mid);
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.controls-toggle:hover {
  background: var(--green-bright);
  border-color: var(--accent);
}

.controls.collapsed .controls-body {
  display: none;
}

.controls.collapsed .controls-header {
  margin-bottom: 0;
}

.control-hint {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.power-meter {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.power-meter span {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ═══ ACTION BUTTONS ═══ */

.button-row {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.action-btn {
  flex: 1;
  padding: 10px 12px;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text);
  background: var(--green-mid);
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.action-btn:hover {
  background: var(--green-bright);
  border-color: var(--accent);
}

.action-btn:active {
  transform: scale(0.98);
}

.action-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.action-btn.secondary {
  background: rgba(180, 162, 130, 0.12);
}

.action-btn.secondary:hover {
  background: rgba(180, 162, 130, 0.22);
  border-color: var(--accent);
}

/* ═══ CHECKBOX CONTROL ═══ */

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

.checkbox-label:hover {
  color: var(--text);
}

.power-track {
  flex: 1;
  height: 4px;
  border-radius: 2px;
  background: rgba(180, 162, 130, 0.12);
  overflow: hidden;
}

.power-fill {
  height: 100%;
  width: 0%;
  /* Gold gradient — trophy aesthetic */
  background: linear-gradient(90deg, var(--brass), #d4c193);
  transition: width 0.1s ease-out;
}

/* ═══ POWER CONTROL — Interactive Slider ═══ */

.power-control {
  margin-bottom: 14px;
}

.power-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.power-label {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.power-info-icon {
  font-size: 14px;
  color: var(--accent);
  cursor: help;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.power-info-icon:hover {
  opacity: 1;
}

.power-percent {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  min-width: 45px;
  text-align: right;
}

.power-percent.too-soft {
  color: #6eb5ff;
}

.power-percent.too-firm {
  color: #ff8a65;
}

.power-percent.optimal {
  color: var(--green-accent);
}

.power-slider-container {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.power-btn {
  width: 28px;
  height: 28px;
  padding: 0;
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 400;
  color: var(--text);
  background: var(--green-mid);
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.power-btn:hover {
  background: var(--green-bright);
  border-color: var(--accent);
}

.power-btn:active {
  transform: scale(0.95);
}

.power-slider-track {
  flex: 1;
  position: relative;
  height: 28px;
  display: flex;
  align-items: center;
}

.power-slider-track input[type="range"] {
  width: 100%;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: rgba(180, 162, 130, 0.2);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
  z-index: 2;
}

.power-slider-track input[type="range"]::-webkit-slider-track {
  height: 4px;
  border-radius: 2px;
  background: rgba(180, 162, 130, 0.2);
}

.power-slider-track input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
  cursor: grab;
  transition: transform 0.1s ease;
}

.power-slider-track input[type="range"]::-webkit-slider-thumb:active {
  cursor: grabbing;
  transform: scale(1.15);
}

.power-slider-track input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
  cursor: grab;
}

.power-recommended-marker {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 2px;
  height: 12px;
  background: var(--green-accent);
  border-radius: 1px;
  z-index: 1;
  pointer-events: none;
  opacity: 0.7;
}

.power-info {
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--text-subtle);
  text-align: center;
  margin-top: 6px;
  min-height: 14px;
}

/* ═══ SESSION STATS — Scorecard Aesthetic ═══ */

.session-stats {
  padding: 14px 16px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  width: 240px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    0 4px 16px rgba(0, 0, 0, 0.3);
}

.session-title {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--panel-border);
}

.session-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 0;
  font-family: var(--font-body);
  font-size: 13px;
}

.session-row span:first-child {
  color: var(--text-muted);
  font-weight: 400;
  letter-spacing: 0.2px;
}

.session-row span:last-child {
  color: var(--text);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

/* ═══ HELP OVERLAY ═══ */

#help {
  position: absolute;
  bottom: 20px;
  left: 20px;
  padding: 10px 14px;
  background: var(--panel);
  border-radius: 4px;
  border: 1px solid var(--panel-border);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.3px;
  color: var(--text-muted);
  z-index: 10;
  box-shadow: 0 4px 16px rgba(30, 34, 28, 0.18);
}

/* Hotkey helper panel */
.hotkey-helper {
  position: absolute;
  bottom: 20px;
  right: 20px;
  padding: 12px 16px;
  background: var(--panel);
  border-radius: 6px;
  border: 1px solid var(--panel-border);
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--text-muted);
  z-index: 10;
  box-shadow: 0 4px 16px rgba(30, 34, 28, 0.18);
  min-width: 180px;
}

.hotkey-title {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--panel-border);
}

.hotkey-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 0;
  gap: 16px;
}

.hotkey-row kbd {
  display: inline-block;
  min-width: 28px;
  padding: 3px 6px;
  background: rgba(0, 0, 0, 0.06);
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 600;
  text-align: center;
  color: var(--text);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
}

.hotkey-row span {
  flex: 1;
  text-align: right;
  color: var(--text-muted);
}

/* ═══ LIVE STATS PANEL — Pro Coach Display ═══ */

.live-stats {
  position: absolute;
  bottom: 20px;
  right: 20px;
  padding: 14px 16px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  width: 180px;
  z-index: 10;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    0 4px 16px rgba(0, 0, 0, 0.3);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

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

.live-stats-title {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--panel-border);
}

.live-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 0;
  font-family: var(--font-body);
  font-size: 12px;
}

.live-row span:first-child {
  color: var(--text-muted);
  font-weight: 400;
}

.live-row span:last-child {
  color: var(--text);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

/* ═══ READ PANEL — Pre-Putt Info ═══ */

.read-panel {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 14px 16px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  width: 180px;
  z-index: 10;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    0 4px 16px rgba(0, 0, 0, 0.3);
}

.read-title {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--panel-border);
}

.read-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 0;
  font-family: var(--font-body);
  font-size: 12px;
}

.read-row span:first-child {
  color: var(--text-muted);
  font-weight: 400;
}

.read-row span:last-child {
  color: var(--text);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.footer {
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  background: var(--bg-elevated);
  border-top: 1px solid var(--panel-border);
  color: var(--text-subtle);
}

.footer-email {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-email:hover {
  color: var(--accent);
  text-decoration: underline;
}

.footer::before,
.footer::after {
  content: "◆";
  font-size: 6px;
  opacity: 0.35;
  color: var(--brass);
}

/* ═══ RESPONSIVE — Maintaining Elegance at All Sizes ═══ */

@media (max-width: 768px) {
  .topbar {
    height: 60px;
    padding: 0 20px;
  }

  .brand {
    font-size: 20px;
    letter-spacing: 1.5px;
  }

  .controls,
  .session-stats {
    width: 200px;
    padding: 12px 14px;
  }

  #hud {
    top: 14px;
    left: 14px;
    gap: 10px;
  }

  #help {
    left: 14px;
    bottom: 14px;
    max-width: 70%;
  }

  .hotkey-helper {
    right: 14px;
    bottom: 14px;
    padding: 10px 12px;
    min-width: 160px;
    font-size: 10px;
  }

  .footer {
    height: 40px;
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .topbar {
    height: 52px;
    padding: 0 16px;
  }

  .brand {
    font-size: 16px;
    letter-spacing: 1px;
  }

  .sub {
    display: none;
  }

  .controls,
  .session-stats {
    width: 170px;
    padding: 10px 12px;
  }

  .session-title {
    font-size: 10px;
  }

  .session-row {
    font-size: 10px;
  }

  .footer::before,
  .footer::after {
    display: none;
  }

  /* Hide hotkey helper on very small screens */
  .hotkey-helper {
    display: none;
  }
}