* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg:       #060e1f;
  --surface:  #0f1b30;
  --surface2: #162035;
  --card:     #0d1829;
  --border:   rgba(255,255,255,0.07);
  --accent:   #f59e0b;
  --accent2:  #fbbf24;
  --green:    #10b981;
  --red:      #ef4444;
  --blue:     #3b82f6;
  --text:     #f1f5f9;
  --text2:    #64748b;
  --text3:    #94a3b8;
  --font:     'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-kh:  'Noto Sans Khmer', 'Inter', sans-serif;
}

body {
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 140% 60% at 50% -5%, rgba(99,102,241,0.10) 0%, transparent 65%),
    radial-gradient(ellipse 60% 50% at 95% 80%,  rgba(245,158,11,0.05) 0%, transparent 60%);
  color: var(--text);
  font-family: var(--font);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 16px 40px;
}

/* ── Top Bar ──────────────────────────────────────────────────────────────── */
.top-bar {
  width: 100%;
  max-width: 420px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.lang-toggle {
  display: flex;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 3px;
  gap: 2px;
}

.lang-btn {
  padding: 5px 13px;
  border: none;
  border-radius: 20px;
  background: transparent;
  color: var(--text2);
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.3px;
}

.lang-btn.active {
  background: var(--accent);
  color: #000;
}

.top-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

.ctrl-btn {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px 9px;
  font-size: 16px;
  cursor: pointer;
  line-height: 1;
  transition: background 0.2s, border-color 0.2s;
  color: var(--text3);
}

.ctrl-btn:hover { background: rgba(255,255,255,0.09); border-color: rgba(255,255,255,0.12); }
.ctrl-btn.wakelock-on { background: rgba(251,191,36,0.12); border-color: rgba(251,191,36,0.3); }

/* ── Status dot ───────────────────────────────────────────────────────────── */
.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--red);
  margin-left: 2px;
  box-shadow: 0 0 6px rgba(239,68,68,0.5);
  transition: background 0.3s, box-shadow 0.3s;
}

.status-dot.connected {
  background: var(--green);
  box-shadow: 0 0 8px rgba(16,185,129,0.6);
  animation: pulse-green 2.5s ease infinite;
}

@keyframes pulse-green {
  0%,100% { box-shadow: 0 0 0 0   rgba(16,185,129,0.5); }
  60%     { box-shadow: 0 0 0 8px rgba(16,185,129,0); }
}

/* ── Device Card ─────────────────────────────────────────────────────────── */
.device-card {
  width: 100%;
  max-width: 420px;
  background: linear-gradient(160deg, #111d30 0%, #0a1320 100%);
  border: 1px solid var(--border);
  border-radius: 28px;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.03),
    0 32px 64px rgba(0,0,0,0.6),
    0 0 80px rgba(245,158,11,0.04);
}

/* ── Header ──────────────────────────────────────────────────────────────── */
.device-header {
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
}

.brand { display: flex; align-items: center; gap: 10px; }

.brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #d97706, #f59e0b);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(245,158,11,0.25);
}

.brand-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  font-family: var(--font-kh);
  letter-spacing: -0.2px;
}

.brand-sub {
  font-size: 10px;
  color: var(--text2);
  letter-spacing: 1px;
  font-weight: 600;
  margin-top: 1px;
}

.header-badge {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--green);
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.2);
  padding: 3px 9px;
  border-radius: 20px;
}

/* ── Device Screen ───────────────────────────────────────────────────────── */
.device-screen {
  position: relative;
  overflow: hidden;
}

/* ── Screen: Idle = QR Hero ──────────────────────────────────────────────── */
.screen-idle {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 20px 20px;
  gap: 10px;
}

.qr-eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
}

.qr-badge-chip {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: #000;
  background: var(--accent);
  padding: 3px 8px;
  border-radius: 20px;
}

.qr-scan-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text2);
  letter-spacing: 0.3px;
}

.qr-frame-wrap {
  position: relative;
  padding: 10px;
  background: #fff;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow:
    0 0 0 2px rgba(245,158,11,0.25),
    0 12px 40px rgba(0,0,0,0.5),
    0 0 60px rgba(245,158,11,0.06);
}

/* Corner bracket markers */
.qr-corner {
  position: absolute;
  width: 22px;
  height: 22px;
  border-color: var(--accent);
  border-style: solid;
  z-index: 2;
}
.qr-corner.tl { top: -2px;  left: -2px;  border-width: 3px 0 0 3px; border-radius: 5px 0 0 0; }
.qr-corner.tr { top: -2px;  right: -2px; border-width: 3px 3px 0 0; border-radius: 0 5px 0 0; }
.qr-corner.bl { bottom: -2px; left: -2px;  border-width: 0 0 3px 3px; border-radius: 0 0 0 5px; }
.qr-corner.br { bottom: -2px; right: -2px; border-width: 0 3px 3px 0; border-radius: 0 0 5px 0; }

.qr-spinner {
  width: 220px;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #64748b;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font);
}

#qr-img {
  display: block;
  border-radius: 6px;
}

.qr-meta-row {
  width: 100%;
  max-width: 240px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.qr-merchant {
  font-size: 13px;
  font-weight: 600;
  color: var(--text3);
}

.qr-timer-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
}

.qr-countdown {
  font-size: 11px;
  color: var(--text2);
  font-variant-numeric: tabular-nums;
  min-width: 70px;
  text-align: right;
}

.qr-refresh-btn {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text2);
  border-radius: 6px;
  padding: 3px 8px;
  font-size: 13px;
  cursor: pointer;
  line-height: 1.6;
  transition: all 0.15s;
  font-family: var(--font);
}

.qr-refresh-btn:hover { color: var(--accent); border-color: rgba(245,158,11,0.4); }
.qr-refresh-btn.spinning { animation: spin 0.5s ease; }
@keyframes spin { to { transform: rotate(360deg); } }

.qr-progress-track {
  width: 240px;
  height: 3px;
  background: rgba(255,255,255,0.06);
  border-radius: 99px;
  overflow: hidden;
}

.qr-progress-bar {
  height: 100%;
  width: 100%;
  background: var(--green);
  border-radius: 99px;
  transition: width 1s linear, background 0.8s ease;
}

.idle-text {
  font-size: 12px;
  color: var(--text2);
  font-family: var(--font-kh);
  letter-spacing: 0.2px;
}

/* ── Screen: Payment Received ────────────────────────────────────────────── */
.screen-payment {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 36px 24px 32px;
  gap: 10px;
  min-height: 420px;
  background: linear-gradient(160deg, rgba(16,185,129,0.07), rgba(5,150,105,0.03));
  animation: payment-in 0.45s cubic-bezier(0.34, 1.4, 0.64, 1);
}

.screen-payment.visible { display: flex; }

@keyframes payment-in {
  from { opacity: 0; transform: scale(0.94); }
  to   { opacity: 1; transform: scale(1); }
}

.payment-check-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, #10b981, #059669);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 4px;
  animation: check-pop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.1s both,
             check-glow 2.5s ease 0.6s infinite;
  box-shadow: 0 8px 24px rgba(16,185,129,0.3);
}

@keyframes check-pop {
  from { transform: scale(0); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}

@keyframes check-glow {
  0%,100% { box-shadow: 0 8px 24px rgba(16,185,129,0.3), 0 0 0 0   rgba(16,185,129,0.25); }
  50%     { box-shadow: 0 8px 24px rgba(16,185,129,0.3), 0 0 0 14px rgba(16,185,129,0); }
}

.payment-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--green);
  letter-spacing: 2px;
  text-transform: uppercase;
  font-family: var(--font-kh);
}

.payment-amount {
  display: flex;
  align-items: baseline;
  gap: 4px;
  line-height: 1;
  margin: 4px 0;
}

.payment-currency {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent2);
  vertical-align: baseline;
  margin-bottom: 6px;
}

#payment-amount-value {
  font-size: 58px;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: -2px;
  font-variant-numeric: tabular-nums;
}

.payment-sender {
  font-size: 15px;
  color: var(--text3);
  font-family: var(--font-kh);
  margin-top: 2px;
}

.payment-sender span:last-child {
  color: var(--text);
  font-weight: 600;
}

.payment-time {
  font-size: 12px;
  color: var(--text2);
}

/* Flash on payment */
.flash { animation: flash-anim 0.6s ease; }

@keyframes flash-anim {
  0%   { background: linear-gradient(160deg, rgba(16,185,129,0.18), rgba(5,150,105,0.1)); }
  100% { background: transparent; }
}

/* ── Subscribe Section ───────────────────────────────────────────────────── */
.subscribe-section {
  padding: 0 18px 20px;
}

.subscribe-btn {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 14px;
  background: linear-gradient(135deg, #d97706, #f59e0b);
  color: #000;
  font-size: 15px;
  font-weight: 700;
  font-family: var(--font-kh);
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 4px 16px rgba(245,158,11,0.2);
  letter-spacing: 0.1px;
}

.subscribe-btn:hover:not(:disabled) {
  background: linear-gradient(135deg, #f59e0b, #fbbf24);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(245,158,11,0.3);
}

.subscribe-btn:disabled {
  background: rgba(255,255,255,0.06);
  color: var(--text2);
  cursor: not-allowed;
  box-shadow: none;
}

.status-text {
  text-align: center;
  font-size: 12px;
  color: var(--text2);
  margin-top: 10px;
  font-family: var(--font-kh);
}

/* ── Divider ─────────────────────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0 18px;
}

/* ── Demo Panel ──────────────────────────────────────────────────────────── */
.demo-panel { padding: 18px 18px 20px; }

.demo-title {
  font-size: 10px;
  font-weight: 700;
  color: var(--text2);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 14px;
  font-family: var(--font-kh);
}

.demo-form { display: flex; flex-direction: column; gap: 9px; }

.input-row { display: flex; gap: 9px; }

.demo-input {
  flex: 1;
  padding: 11px 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 11px;
  color: var(--text);
  font-size: 14px;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.2s, background 0.2s;
}

.demo-input:focus {
  border-color: rgba(245,158,11,0.4);
  background: rgba(255,255,255,0.06);
}

.demo-input::placeholder { color: var(--text2); }
.demo-input option { background: #111827; }

.trigger-btn {
  width: 100%;
  padding: 13px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, #059669, #10b981);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.1px;
  box-shadow: 0 4px 16px rgba(16,185,129,0.2);
}

.trigger-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(16,185,129,0.3);
}

.trigger-btn:disabled {
  background: rgba(255,255,255,0.05);
  color: var(--text2);
  cursor: not-allowed;
  box-shadow: none;
}

/* ── Toast ───────────────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(120px);
  background: #1e293b;
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--text);
  padding: 11px 20px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font);
  transition: transform 0.3s cubic-bezier(0.34, 1.4, 0.64, 1);
  z-index: 300;
  white-space: nowrap;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

.toast.show { transform: translateX(-50%) translateY(0); }
.toast.success { border-left: 3px solid var(--green); }
.toast.error   { border-left: 3px solid var(--red); }
.toast.info    { border-left: 3px solid var(--accent); }

/* ── Settings Panel ──────────────────────────────────────────────────────── */
.settings-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(4px);
  z-index: 200;
}

.settings-overlay.visible { display: block; }

.settings-panel {
  position: fixed;
  bottom: -100%;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 420px;
  background: #111d30;
  border: 1px solid var(--border);
  border-radius: 24px 24px 0 0;
  z-index: 201;
  transition: bottom 0.35s cubic-bezier(0.34, 1.3, 0.64, 1);
  padding-bottom: env(safe-area-inset-bottom, 16px);
}

.settings-panel.open { bottom: 0; }

.settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--border);
}

.settings-title { font-size: 15px; font-weight: 700; color: var(--text); }

.settings-close {
  background: rgba(255,255,255,0.06);
  border: none;
  border-radius: 50%;
  width: 28px;
  height: 28px;
  color: var(--text3);
  font-size: 13px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.settings-body {
  padding: 16px 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 70vh;
  overflow-y: auto;
}

.settings-row { display: flex; align-items: center; justify-content: space-between; }
.settings-row label { font-size: 13px; color: var(--text3); font-weight: 600; }

.slider-value { font-size: 13px; font-weight: 700; color: var(--accent); }

.settings-slider {
  width: 100%;
  -webkit-appearance: none;
  height: 5px;
  border-radius: 3px;
  background: rgba(255,255,255,0.08);
  outline: none;
  margin: 7px 0 3px;
}

.settings-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 0 0 3px rgba(245,158,11,0.2);
}

.slider-labels { display: flex; justify-content: space-between; font-size: 10px; color: var(--text2); margin-bottom: 4px; }

.settings-hint {
  font-size: 12px;
  color: var(--text2);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  line-height: 1.7;
  margin: 2px 0;
}

.settings-hint code {
  background: rgba(255,255,255,0.07);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 11px;
  color: var(--accent);
}

.settings-divider { border: none; border-top: 1px solid var(--border); margin: 6px 0; }

.tts-badge { font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 20px; letter-spacing: 0.3px; }
.badge-good  { background: rgba(16,185,129,0.12); color: var(--green); }
.badge-basic { background: rgba(245,158,11,0.12); color: var(--accent); }

.settings-save-btn {
  margin-top: 14px;
  width: 100%;
  padding: 13px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, #d97706, #f59e0b);
  color: #000;
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font);
  cursor: pointer;
}

/* ── Voice recording rows ────────────────────────────────────────────────── */
.voice-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 11px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 11px;
  margin-bottom: 6px;
}

.voice-info { display: flex; flex-direction: column; gap: 2px; }
.voice-label { font-size: 13px; font-weight: 600; color: var(--text); font-family: var(--font-kh); }
.voice-hint  { font-size: 11px; color: var(--text2); font-family: var(--font-kh); }
.voice-actions { display: flex; align-items: center; gap: 5px; }

.vbtn {
  border: none;
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 13px;
  cursor: pointer;
  background: rgba(255,255,255,0.06);
  color: var(--text);
  transition: background 0.15s;
  white-space: nowrap;
  font-family: var(--font);
}

.vbtn:hover         { background: rgba(255,255,255,0.1); }
.vbtn-rec           { background: rgba(239,68,68,0.12); color: #ef4444; }
.vbtn-rec:hover     { background: rgba(239,68,68,0.22); }
.vbtn-rerecord      { background: rgba(245,158,11,0.12); color: var(--accent); }
.vbtn-rerecord:hover{ background: rgba(245,158,11,0.22); }
.vbtn-play          { background: rgba(16,185,129,0.12); color: var(--green); }
.vbtn-play:hover    { background: rgba(16,185,129,0.22); }
.vbtn-save          { background: rgba(16,185,129,0.12); color: var(--green); font-size: 12px; }
.vbtn-save:hover    { background: rgba(16,185,129,0.22); }
.vbtn-del           { background: rgba(239,68,68,0.06); color: #ef4444; }
.vbtn-del:hover     { background: rgba(239,68,68,0.18); }
.vbtn-stop          { background: #ef4444; color: #fff; }
.vbtn-cancel        { background: rgba(255,255,255,0.05); color: var(--text2); }
.vbtn-expand        { font-size: 16px; letter-spacing: -1px; }

.voice-count {
  font-size: 10px;
  font-weight: 700;
  color: var(--green);
  background: rgba(16,185,129,0.1);
  padding: 2px 7px;
  border-radius: 20px;
}

.takes-list { border-top: 1px solid var(--border); margin-top: 8px; padding-top: 8px; }

.take-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 4px;
  border-radius: 7px;
}

.take-item:hover { background: rgba(255,255,255,0.04); }
.take-label { font-size: 12px; color: var(--text2); }
.takes-loading, .takes-empty { font-size: 12px; color: var(--text2); padding: 6px 4px; display: block; }

.num-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  color: var(--text3);
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  margin-bottom: 6px;
}

.num-toggle:hover { background: rgba(255,255,255,0.07); }

.rec-timer {
  font-size: 13px;
  font-weight: 700;
  color: #ef4444;
  animation: blink 1s step-start infinite;
  min-width: 36px;
}

@keyframes blink { 50% { opacity: 0.3; } }

/* ── iOS Guides ──────────────────────────────────────────────────────────── */
.ios-guide-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(4px);
  z-index: 200;
}

.ios-guide-panel {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: #111d30;
  border: 1px solid var(--border);
  border-radius: 24px 24px 0 0;
  padding: 28px 24px 40px;
  z-index: 201;
  max-width: 480px;
  margin: 0 auto;
}

.ios-guide-close {
  position: absolute; top: 16px; right: 20px;
  background: none; border: none; color: var(--text2);
  font-size: 20px; cursor: pointer;
}

.ios-guide-icon  { font-size: 48px; text-align: center; margin-bottom: 12px; }
.ios-guide-title { font-size: 20px; font-weight: 700; color: var(--text); text-align: center; margin-bottom: 10px; }
.ios-guide-body  { color: var(--text3); font-size: 14px; text-align: center; margin-bottom: 16px; }

.ios-guide-steps {
  color: var(--text);
  font-size: 14px;
  line-height: 2.2;
  padding-left: 20px;
  margin-bottom: 16px;
}

.ios-share-icon {
  display: inline-block;
  background: var(--blue);
  color: white;
  border-radius: 5px;
  padding: 1px 5px;
  font-size: 12px;
}

.ios-guide-note { font-size: 12px; color: var(--text2); text-align: center; margin-bottom: 20px; line-height: 1.6; }

.ios-guide-btn {
  width: 100%; padding: 14px; border: none; border-radius: 14px;
  background: linear-gradient(135deg, #d97706, #f59e0b);
  color: #000; font-size: 16px; font-weight: 700;
  font-family: var(--font); cursor: pointer;
}

/* ── QR Scan Button ──────────────────────────────────────────────────────── */
.qr-scan-btn {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text2);
  border-radius: 6px;
  padding: 3px 8px;
  font-size: 14px;
  cursor: pointer;
  line-height: 1.6;
  transition: all 0.15s;
  font-family: var(--font);
}
.qr-scan-btn:hover { color: var(--accent); border-color: rgba(245,158,11,0.4); }

/* ── Scanner Overlay ─────────────────────────────────────────────────────── */
.scanner-overlay {
  position: fixed;
  inset: 0;
  background: #000;
  z-index: 400;
  display: flex;
  flex-direction: column;
}

.scanner-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  padding-top: max(14px, env(safe-area-inset-top, 14px));
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2;
  flex-shrink: 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.scanner-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.4px;
  font-family: var(--font);
}

.scanner-close-btn {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  color: #fff;
  border-radius: 10px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font);
  transition: background 0.15s;
}
.scanner-close-btn:hover { background: rgba(255,255,255,0.18); }

.scanner-viewport {
  flex: 1;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

#scanner-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scanner-frame {
  position: absolute;
  width: 240px;
  height: 240px;
  z-index: 2;
  /* Dark vignette outside the scanning frame */
  box-shadow: 0 0 0 9999px rgba(0,0,0,0.55);
  border-radius: 4px;
  overflow: hidden;
}

.scan-corner {
  position: absolute;
  width: 28px;
  height: 28px;
  border-color: var(--accent);
  border-style: solid;
  z-index: 3;
}
.scan-corner.tl { top: -1px; left: -1px; border-width: 3px 0 0 3px; border-radius: 5px 0 0 0; }
.scan-corner.tr { top: -1px; right: -1px; border-width: 3px 3px 0 0; border-radius: 0 5px 0 0; }
.scan-corner.bl { bottom: -1px; left: -1px; border-width: 0 0 3px 3px; border-radius: 0 0 0 5px; }
.scan-corner.br { bottom: -1px; right: -1px; border-width: 0 3px 3px 0; border-radius: 0 0 5px 0; }

.scan-line {
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--accent) 30%, var(--accent2) 50%, var(--accent) 70%, transparent 100%);
  box-shadow: 0 0 10px rgba(245,158,11,0.8), 0 0 4px rgba(245,158,11,0.5);
  animation: scan-sweep 2s ease-in-out infinite;
  z-index: 3;
}

@keyframes scan-sweep {
  0%   { top: 4px;                    opacity: 1; }
  48%  { top: calc(100% - 6px);       opacity: 1; }
  50%  { top: calc(100% - 6px);       opacity: 0; }
  52%  { top: 4px;                    opacity: 0; }
  54%  { top: 4px;                    opacity: 1; }
  100% { top: 4px;                    opacity: 1; }
}

.scanner-frame.detected .scan-line {
  animation-play-state: paused;
  opacity: 0;
  transition: opacity 0.2s;
}

.scanner-frame.detected {
  box-shadow: 0 0 0 9999px rgba(0,0,0,0.55), 0 0 0 3px var(--green);
  transition: box-shadow 0.2s;
}

.scanner-hint {
  position: absolute;
  bottom: 36px;
  left: 0; right: 0;
  text-align: center;
  font-size: 13px;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  z-index: 3;
  padding: 6px 20px;
  font-family: var(--font);
  pointer-events: none;
}

/* ── Scanner Result Panel ─────────────────────────────────────────────────── */
.scanner-result {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(160deg, #111d30 0%, #0a1320 100%);
  border-top: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px 20px 0 0;
  padding: 20px 20px calc(20px + env(safe-area-inset-bottom, 0px));
  z-index: 10;
  animation: result-slide-up 0.35s cubic-bezier(0.34, 1.3, 0.64, 1);
}

@keyframes result-slide-up {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}

.result-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--green);
  text-transform: uppercase;
  margin-bottom: 8px;
  font-family: var(--font);
}

.result-text {
  font-size: 12px;
  color: var(--text3);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 14px;
  word-break: break-all;
  line-height: 1.6;
  font-family: monospace;
  max-height: 80px;
  overflow-y: auto;
}

.result-actions {
  display: flex;
  gap: 10px;
}

.result-btn {
  flex: 1;
  padding: 12px;
  border: none;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.15s;
}

.result-copy {
  background: linear-gradient(135deg, #d97706, #f59e0b);
  color: #000;
}
.result-copy:hover { background: linear-gradient(135deg, #f59e0b, #fbbf24); }

.result-scan-again {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text);
}
.result-scan-again:hover { background: rgba(255,255,255,0.12); }

.scan-pay-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.scan-pay-check {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #10b981, #059669);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(16,185,129,0.3);
}

.scan-pay-info { display: flex; flex-direction: column; gap: 2px; }

.scan-pay-merchant {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  font-family: var(--font-kh);
}

.scan-pay-city {
  font-size: 12px;
  color: var(--text2);
}

.scan-pay-form {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-bottom: 10px;
}

.result-submit {
  background: linear-gradient(135deg, #059669, #10b981);
  color: #fff;
  box-shadow: 0 4px 14px rgba(16,185,129,0.25);
}
.result-submit:hover { background: linear-gradient(135deg, #10b981, #34d399); }

/* ── Merchant Manager ─────────────────────────────────────────────────────── */
.merchant-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 400;
  display: flex;
  flex-direction: column;
}

.merchant-mgr-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  padding-top: max(14px, env(safe-area-inset-top, 14px));
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.merchant-back {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--text3);
  border-radius: 10px;
  padding: 7px 13px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font);
  transition: background 0.15s;
}
.merchant-back:hover { background: rgba(255,255,255,0.1); }

.merchant-mgr-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  font-family: var(--font);
}

.merchant-new-btn {
  background: linear-gradient(135deg, #d97706, #f59e0b);
  border: none;
  color: #000;
  border-radius: 10px;
  padding: 7px 13px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  font-family: var(--font);
  transition: opacity 0.15s;
}
.merchant-new-btn:hover { opacity: 0.85; }

.merchant-list {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
}

.merchant-loading {
  text-align: center;
  color: var(--text2);
  font-size: 13px;
  padding: 40px 0;
}

.merchant-card {
  background: linear-gradient(160deg, #111d30 0%, #0a1320 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  transition: border-color 0.2s;
}

.merchant-card-active {
  border-color: rgba(245,158,11,0.35);
  background: linear-gradient(160deg, #16200f 0%, #0f1a09 100%);
}

.mcard-qr {
  flex-shrink: 0;
  background: #fff;
  border-radius: 8px;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}

.mcard-qr img { display: block; border-radius: 4px; }

.mcard-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.mcard-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-family: var(--font-kh);
}

.mcard-bakong {
  font-size: 11px;
  color: var(--text2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mcard-city {
  font-size: 11px;
  color: var(--text2);
}

.mcard-active-badge {
  display: inline-block;
  margin-top: 4px;
  font-size: 10px;
  font-weight: 700;
  color: var(--accent);
  background: rgba(245,158,11,0.12);
  border: 1px solid rgba(245,158,11,0.25);
  padding: 2px 8px;
  border-radius: 20px;
  letter-spacing: 0.3px;
}

.mcard-actions {
  display: flex;
  flex-direction: column;
  gap: 5px;
  flex-shrink: 0;
}

.mbtn {
  border: none;
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font);
  transition: background 0.15s;
  white-space: nowrap;
}

.mbtn-activate {
  background: rgba(245,158,11,0.12);
  color: var(--accent);
  border: 1px solid rgba(245,158,11,0.2);
}
.mbtn-activate:hover { background: rgba(245,158,11,0.22); }

.mbtn-dl {
  background: rgba(255,255,255,0.05);
  color: var(--text3);
  border: 1px solid var(--border);
}
.mbtn-dl:hover { background: rgba(255,255,255,0.1); }

.mbtn-edit {
  background: rgba(59,130,246,0.1);
  color: var(--blue);
  border: 1px solid rgba(59,130,246,0.2);
}
.mbtn-edit:hover { background: rgba(59,130,246,0.2); }

.mbtn-del {
  background: rgba(239,68,68,0.08);
  color: var(--red);
  border: 1px solid rgba(239,68,68,0.15);
}
.mbtn-del:hover { background: rgba(239,68,68,0.18); }

/* Merchant form bottom sheet */
.merchant-form-bg {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  z-index: 410;
}

.merchant-form-sheet {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: #111d30;
  border: 1px solid var(--border);
  border-radius: 20px 20px 0 0;
  z-index: 411;
  max-width: 480px;
  margin: 0 auto;
  padding: 0 20px calc(20px + env(safe-area-inset-bottom, 0px));
  animation: slide-up-sheet 0.3s cubic-bezier(0.34, 1.3, 0.64, 1);
}

@keyframes slide-up-sheet {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}

.merchant-form-handle {
  width: 36px; height: 4px;
  background: rgba(255,255,255,0.15);
  border-radius: 2px;
  margin: 12px auto 0;
}

.merchant-form-hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0 12px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

.merchant-form-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  font-family: var(--font);
}

.merchant-form-close {
  background: rgba(255,255,255,0.06);
  border: none;
  border-radius: 50%;
  width: 28px; height: 28px;
  color: var(--text3);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.merchant-form-fields {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.merchant-form-cancel-btn {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: transparent;
  color: var(--text3);
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.15s;
}
.merchant-form-cancel-btn:hover { background: rgba(255,255,255,0.05); }
.result-submit:disabled { background: rgba(255,255,255,0.06); color: var(--text2); cursor: not-allowed; box-shadow: none; }