/* ============================================================
   DS TECH VISION — Design System v2.0
   DS Queue Lite | 2026
   ============================================================ */

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --ds-bg:            #080e1a;
  --ds-bg-deep:       #050912;
  --ds-surface-1:     rgba(255, 255, 255, 0.04);
  --ds-surface-2:     rgba(255, 255, 255, 0.07);
  --ds-surface-3:     rgba(255, 255, 255, 0.10);
  --ds-border:        rgba(79, 156, 249, 0.16);
  --ds-border-hover:  rgba(79, 156, 249, 0.42);

  --ds-primary:       #4f9cf9;
  --ds-primary-dark:  #2563eb;
  --ds-accent:        #06b6d4;
  --ds-accent-dark:   #0891b2;
  --ds-danger:        #ef4444;
  --ds-success:       #10b981;
  --ds-warning:       #f59e0b;

  --ds-text:          #e8eef7;
  --ds-text-soft:     #b0bdd4;
  --ds-muted:         #6b7fa0;
  --ds-dimmed:        #3a4a63;

  --ds-glow-sm:    0 0 16px rgba(79, 156, 249, 0.30);
  --ds-glow-md:    0 0 32px rgba(79, 156, 249, 0.40), 0 0 64px rgba(6, 182, 212, 0.18);
  --ds-glow-lg:    0 0 60px rgba(79, 156, 249, 0.50), 0 0 120px rgba(6, 182, 212, 0.25);

  --ds-radius-xs:  6px;
  --ds-radius-sm:  10px;
  --ds-radius:     16px;
  --ds-radius-lg:  24px;
  --ds-radius-xl:  32px;

  --ds-font:       'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --ds-font-mono:  'Consolas', 'SF Mono', 'Fira Code', 'Courier New', monospace;

  --ds-transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--ds-font);
  color: var(--ds-text);
  margin: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  user-select: none;
}

/* ── Operator background ───────────────────────────────────── */
.ds-bg {
  background-color: var(--ds-bg);
  background-image:
    radial-gradient(ellipse 90% 60% at 15% 0%,  rgba(79, 156, 249, 0.08) 0%, transparent 55%),
    radial-gradient(ellipse 70% 50% at 85% 100%, rgba(6, 182, 212, 0.06)  0%, transparent 50%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ── Header ────────────────────────────────────────────────── */
.ds-header {
  height: 70px;
  padding: 0 32px;
  display: flex;
  align-items: center;
  background: rgba(5, 9, 18, 0.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--ds-border);
  flex-shrink: 0;
  position: relative;
  z-index: 10;
}

.ds-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--ds-primary) 30%, var(--ds-accent) 70%, transparent 100%);
  opacity: 0.4;
}

/* ── Logo / Brand ──────────────────────────────────────────── */
.ds-logo-badge {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--ds-primary) 0%, var(--ds-accent) 100%);
  border-radius: var(--ds-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1rem;
  color: #fff;
  letter-spacing: 0.05em;
  box-shadow: var(--ds-glow-sm);
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.ds-logo-badge::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 50%;
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--ds-radius-sm) var(--ds-radius-sm) 0 0;
}

.ds-logo-badge-lg {
  width: 54px;
  height: 54px;
  font-size: 1.3rem;
  border-radius: var(--ds-radius-sm);
}

.ds-brand-name {
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.14em;
  color: var(--ds-text);
  line-height: 1.15;
  text-transform: uppercase;
}

.ds-brand-name-lg {
  font-size: 1.2rem;
  letter-spacing: 0.15em;
}

.ds-brand-sub {
  font-size: 0.65rem;
  color: var(--ds-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ── Status indicator ──────────────────────────────────────── */
.ds-status-indicator {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.78rem;
  color: var(--ds-muted);
  letter-spacing: 0.03em;
}

.ds-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ds-dimmed);
  display: inline-block;
  flex-shrink: 0;
  transition: background var(--ds-transition);
}

.ds-dot.active {
  background: var(--ds-success);
  box-shadow: 0 0 8px var(--ds-success);
  animation: ds-blink 2.4s ease-in-out infinite;
}

@keyframes ds-blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.45; }
}

/* ── Clock ─────────────────────────────────────────────────── */
.ds-clock-wrap { text-align: right; }

.ds-clock {
  font-size: 1.35rem;
  font-weight: 700;
  font-family: var(--ds-font-mono);
  color: var(--ds-primary);
  letter-spacing: 0.04em;
  line-height: 1.1;
}

.ds-date {
  font-size: 0.67rem;
  color: var(--ds-muted);
  letter-spacing: 0.04em;
  text-transform: capitalize;
  margin-top: 1px;
}

/* ── Main container ────────────────────────────────────────── */
.ds-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 24px;
  min-height: 0;
}

/* ── Operator panel card ───────────────────────────────────── */
.ds-panel {
  background: var(--ds-surface-1);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius-xl);
  padding: 48px 52px 40px;
  width: 100%;
  max-width: 580px;
  backdrop-filter: blur(32px);
  -webkit-backdrop-filter: blur(32px);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.05) inset,
    0 32px 80px rgba(0, 0, 0, 0.45),
    0 0 0 1px rgba(79, 156, 249, 0.05);
  position: relative;
  overflow: hidden;
}

.ds-panel::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 70%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(79, 156, 249, 0.6), transparent);
}

/* ── Panel badge & title ───────────────────────────────────── */
.ds-panel-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--ds-primary);
  background: rgba(79, 156, 249, 0.10);
  border: 1px solid rgba(79, 156, 249, 0.24);
  padding: 5px 14px;
  border-radius: 20px;
  text-transform: uppercase;
}

.ds-panel-title {
  font-size: 1rem;
  font-weight: 500;
  color: var(--ds-muted);
  letter-spacing: 0.04em;
  margin: 0;
}

/* ── Number input ──────────────────────────────────────────── */
.ds-number-glow {
  position: relative;
  display: inline-block;
}

.ds-number-glow::before {
  content: '';
  position: absolute;
  inset: -28px;
  background: radial-gradient(ellipse, rgba(79, 156, 249, 0.12) 0%, transparent 68%);
  pointer-events: none;
  border-radius: 50%;
  z-index: 0;
}

.ds-number-input {
  position: relative;
  z-index: 1;
  background: rgba(255, 255, 255, 0.04);
  border: 2px solid rgba(79, 156, 249, 0.22);
  border-radius: var(--ds-radius);
  color: #ffffff;
  font-size: clamp(3.5rem, 8vw, 5.5rem);
  font-weight: 900;
  font-family: var(--ds-font-mono);
  text-align: center;
  width: 280px;
  padding: 18px 20px;
  letter-spacing: 0.08em;
  line-height: 1;
  transition: border-color var(--ds-transition), box-shadow var(--ds-transition);
  -moz-appearance: textfield;
  cursor: text;
}

.ds-number-input::-webkit-inner-spin-button,
.ds-number-input::-webkit-outer-spin-button { -webkit-appearance: none; }

.ds-number-input:focus {
  outline: none;
  border-color: var(--ds-primary);
  box-shadow: 0 0 0 3px rgba(79, 156, 249, 0.18), var(--ds-glow-sm);
}

.ds-number-input.ds-pulse {
  animation: ds-num-pop 0.38s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes ds-num-pop {
  0%   { transform: scale(1);    border-color: rgba(79, 156, 249, 0.22); }
  45%  { transform: scale(1.07); border-color: var(--ds-accent); box-shadow: var(--ds-glow-md); }
  100% { transform: scale(1);    border-color: rgba(79, 156, 249, 0.22); }
}

/* ── Control buttons ───────────────────────────────────────── */
.ds-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--ds-radius);
  border: 1.5px solid transparent;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: var(--ds-font);
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all var(--ds-transition);
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
  line-height: 1;
}

.ds-btn:active { transform: scale(0.96); }

.ds-btn-primary {
  background: linear-gradient(135deg, var(--ds-primary) 0%, var(--ds-primary-dark) 100%);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 18px rgba(79, 156, 249, 0.38);
}

.ds-btn-primary:hover {
  box-shadow: 0 6px 28px rgba(79, 156, 249, 0.55);
  transform: translateY(-2px);
}

.ds-btn-outline {
  background: var(--ds-surface-1);
  color: var(--ds-text-soft);
  border-color: var(--ds-border);
}

.ds-btn-outline:hover {
  background: var(--ds-surface-2);
  border-color: var(--ds-border-hover);
  color: var(--ds-text);
}

.ds-btn-danger {
  background: rgba(239, 68, 68, 0.10);
  color: var(--ds-danger);
  border-color: rgba(239, 68, 68, 0.28);
}

.ds-btn-danger:hover {
  background: rgba(239, 68, 68, 0.20);
  border-color: rgba(239, 68, 68, 0.55);
  box-shadow: 0 4px 18px rgba(239, 68, 68, 0.28);
}

/* ── Info bar (panel footer) ───────────────────────────────── */
.ds-info-bar {
  font-size: 0.76rem;
  color: var(--ds-muted);
  border-top: 1px solid var(--ds-border);
  padding-top: 16px;
  margin-top: 8px;
  letter-spacing: 0.02em;
}

/* ── Page footer ───────────────────────────────────────────── */
.ds-footer {
  height: 38px;
  background: rgba(5, 9, 18, 0.7);
  border-top: 1px solid var(--ds-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--ds-dimmed);
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

/* ── Toast notifications ───────────────────────────────────── */
.ds-toast-container {
  position: fixed;
  bottom: 58px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.ds-toast {
  background: rgba(17, 24, 39, 0.95);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius-sm);
  padding: 11px 18px;
  font-size: 0.83rem;
  color: var(--ds-text);
  backdrop-filter: blur(20px);
  opacity: 0;
  transform: translateX(24px);
  transition: opacity 0.24s ease, transform 0.24s ease;
  pointer-events: none;
  white-space: nowrap;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.ds-toast.show {
  opacity: 1;
  transform: translateX(0);
}

.ds-toast-success { border-color: rgba(16, 185, 129, 0.38); color: #34d399; }
.ds-toast-error   { border-color: rgba(239, 68, 68, 0.38);  color: #f87171; }
.ds-toast-warning { border-color: rgba(245, 158, 11, 0.38); color: #fbbf24; }

/* ── Confirmation modal ────────────────────────────────────── */
.ds-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.ds-modal-overlay.show {
  opacity: 1;
  pointer-events: all;
}

.ds-modal {
  background: #0f1929;
  border: 1px solid rgba(79, 156, 249, 0.22);
  border-radius: var(--ds-radius-lg);
  padding: 44px 48px 36px;
  max-width: 420px;
  width: 90%;
  text-align: center;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.65), 0 0 0 1px rgba(79, 156, 249, 0.08);
  transform: translateY(18px) scale(0.97);
  transition: transform 0.26s cubic-bezier(0.34, 1.2, 0.64, 1);
  position: relative;
  overflow: hidden;
}

.ds-modal::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245, 158, 11, 0.5), transparent);
}

.ds-modal-overlay.show .ds-modal {
  transform: translateY(0) scale(1);
}

.ds-modal-icon {
  font-size: 2.4rem;
  color: var(--ds-warning);
  margin-bottom: 14px;
  filter: drop-shadow(0 0 12px rgba(245, 158, 11, 0.5));
}

.ds-modal-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ds-text);
  margin: 0 0 10px;
}

.ds-modal-text {
  font-size: 0.87rem;
  color: var(--ds-muted);
  line-height: 1.6;
  margin: 0;
}

/* ╔═══════════════════════════════════════════════════════════╗
   ║   TV DISPLAY                                              ║
   ╚═══════════════════════════════════════════════════════════╝ */

.ds-tv-bg {
  background-color: #06090f;
  background-image:
    radial-gradient(ellipse 100% 70% at 50%   0%, rgba(79, 156, 249, 0.07) 0%, transparent 55%),
    radial-gradient(ellipse  60% 40% at 0%  100%, rgba(6, 182, 212, 0.05)  0%, transparent 50%),
    radial-gradient(ellipse  60% 40% at 100% 100%, rgba(79, 156, 249, 0.04) 0%, transparent 50%);
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ── TV top bar ─────────────────────────────────────────────── */
.ds-tv-topbar {
  height: 88px;
  padding: 0 5vw;
  display: flex;
  align-items: center;
  background: rgba(6, 9, 15, 0.80);
  border-bottom: 1px solid var(--ds-border);
  flex-shrink: 0;
  position: relative;
}

/* ── TV gradient separator ─────────────────────────────────── */
.ds-tv-separator {
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--ds-primary) 25%, var(--ds-accent) 75%, transparent 100%);
  opacity: 0.55;
  flex-shrink: 0;
}

/* ── TV clock ───────────────────────────────────────────────── */
.ds-tv-clock {
  font-size: clamp(1.6rem, 3.2vw, 2.8rem);
  font-weight: 700;
  font-family: var(--ds-font-mono);
  color: var(--ds-primary);
  letter-spacing: 0.06em;
  line-height: 1.1;
}

.ds-tv-date {
  font-size: clamp(0.7rem, 1.2vw, 1rem);
  color: var(--ds-muted);
  letter-spacing: 0.05em;
  text-transform: capitalize;
  text-align: right;
  margin-top: 2px;
}

/* ── TV main display ────────────────────────────────────────── */
.ds-tv-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(16px, 3vh, 36px);
  min-height: 0;
  padding: 2vh 4vw;
}

.ds-tv-label {
  font-size: clamp(0.85rem, 2.2vw, 1.7rem);
  font-weight: 700;
  letter-spacing: 0.32em;
  color: var(--ds-muted);
  text-transform: uppercase;
}

/* ── Number wrap ────────────────────────────────────────────── */
.ds-tv-number-wrap {
  position: relative;
  padding: clamp(16px, 3vh, 32px) clamp(32px, 6vw, 80px);
  border-radius: var(--ds-radius-xl);
  border: 1px solid rgba(79, 156, 249, 0.13);
  background: rgba(79, 156, 249, 0.025);
  overflow: hidden;
}

.ds-tv-number-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(79, 156, 249, 0.07) 0%, transparent 65%);
  pointer-events: none;
}

.ds-tv-number-wrap::after {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 55%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(79, 156, 249, 0.5), transparent);
}

/* ── The big number ─────────────────────────────────────────── */
.ds-tv-number {
  display: block;
  font-size: clamp(100px, 21vw, 300px);
  font-weight: 900;
  font-family: var(--ds-font-mono);
  color: #ffffff;
  text-shadow:
    0 0  25px rgba(79,  156, 249, 0.65),
    0 0  55px rgba(79,  156, 249, 0.35),
    0 0 100px rgba(6,   182, 212, 0.20);
  letter-spacing: 0.06em;
  line-height: 1;
  position: relative;
  z-index: 1;
}

/* ── Number change animation ────────────────────────────────── */
.ds-tv-number-wrap.ds-tv-pop {
  animation: ds-tv-bounce 0.55s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes ds-tv-bounce {
  0%   { transform: scale(0.90); opacity: 0.55; }
  55%  { transform: scale(1.04); opacity: 1;    }
  100% { transform: scale(1);    opacity: 1;    }
}

.ds-tv-service {
  font-size: clamp(0.85rem, 1.6vw, 1.25rem);
  color: var(--ds-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ── TV bottom bar ──────────────────────────────────────────── */
.ds-tv-bottom {
  height: 54px;
  padding: 0 5vw;
  display: flex;
  align-items: center;
  background: rgba(6, 9, 15, 0.80);
  border-top: 1px solid var(--ds-border);
  flex-shrink: 0;
  font-size: clamp(0.72rem, 1.1vw, 0.9rem);
  color: var(--ds-muted);
  letter-spacing: 0.04em;
}

.ds-tv-version {
  color: var(--ds-dimmed);
  letter-spacing: 0.05em;
}

/* ── Responsive tweaks ──────────────────────────────────────── */
@media (max-width: 600px) {
  .ds-panel { padding: 32px 24px 28px; }
  .ds-number-input { width: 220px; }
  .ds-btn { padding: 12px 18px; font-size: 0.82rem; }
  .ds-header { padding: 0 18px; }
}