/* style.css — Cyberpunk Glassmorphism 2.0 Design System */
:root {
  --bg-primary: #050811;
  --bg-secondary: #0b1120;
  --bg-card: rgba(15, 23, 42, 0.78);
  --bg-card-hover: rgba(22, 33, 58, 0.9);
  --border: rgba(56, 189, 248, 0.18);
  --border-focus: rgba(56, 189, 248, 0.6);
  --accent-cyan: #00f0ff;
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --glow-cyan: 0 0 25px rgba(0, 240, 255, 0.25);
  --glow-purple: 0 0 25px rgba(139, 92, 246, 0.25);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --status-active: #10b981;
  --status-warn: #f59e0b;
  --status-err: #ef4444;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 240, 255, 0.4) rgba(5, 8, 17, 0.8);
}

body {
  min-height: 100vh;
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 10% 10%, rgba(59, 130, 246, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 90% 90%, rgba(139, 92, 246, 0.12) 0%, transparent 50%),
    linear-gradient(180deg, #070d1a 0%, #03050a 100%);
  color: var(--text-main);
  padding-bottom: 70px;
  overflow-x: hidden;
}

/* ================= UNIVERSAL SLICK SCROLLBAR ================= */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: rgba(5, 8, 17, 0.8);
  border-radius: 99px;
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #0284c7, #00f0ff);
  border-radius: 99px;
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.3);
}
::-webkit-scrollbar-thumb:hover {
  background: #00f0ff;
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.6);
}

/* ================= HEADER & NAV ================= */
.header {
  background: rgba(11, 17, 32, 0.88);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-icon {
  width: 44px;
  height: 44px;
  background: transparent;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  flex-shrink: 0;
}
.brand-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid rgba(56, 189, 248, 0.5);
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.35);
  transition: all 0.25s ease;
}
.brand-icon:hover { transform: scale(1.08); }
.brand-icon:hover img {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 24px rgba(0, 240, 255, 0.6);
}
.brand-name {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.01em;
  background: linear-gradient(90deg, #fff, #93c5fd);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.brand-sub {
  font-size: 11px;
  color: var(--text-dim);
}

.nav-tabs {
  display: flex;
  gap: 6px;
  background: rgba(15, 23, 42, 0.7);
  padding: 4px;
  border-radius: 12px;
  border: 1px solid rgba(51, 65, 85, 0.5);
}
.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.tab-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}
.tab-btn.active {
  background: linear-gradient(135deg, #0284c7, #2563eb);
  color: #fff;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35);
}

.btn-logout {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
  padding: 8px 15px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-logout:hover {
  background: var(--status-err);
  color: #fff;
  box-shadow: 0 0 14px rgba(239, 68, 68, 0.4);
}

/* ================= CONTAINER & TABS ================= */
.container {
  max-width: 1320px;
  margin: 24px auto 0;
  padding: 0 20px;
}
.tab-content { display: none; }
.tab-content.active { display: block; animation: tabFadeIn 0.25s cubic-bezier(0.16, 1, 0.3, 1); }

@keyframes pulseGlow {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 6px rgba(52, 211, 153, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

@keyframes pulseActiveCyan {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 240, 255, 0.8), 0 0 8px #00f0ff; }
  70% { transform: scale(1.15); box-shadow: 0 0 0 7px rgba(0, 240, 255, 0), 0 0 14px rgba(0, 240, 255, 0.8); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 240, 255, 0), 0 0 8px #00f0ff; }
}

@keyframes tabFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ================= CARDS & GRIDS ================= */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}
@media (max-width: 900px) {
  .grid-2 { grid-template-columns: 1fr; }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px;
  backdrop-filter: blur(20px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  transition: all 0.25s ease;
}
.card:hover {
  border-color: rgba(56, 189, 248, 0.4);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 240, 255, 0.08);
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  gap: 10px;
  flex-wrap: wrap;
}
.card-title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ================= SPEEDOMETER HERO ================= */
.speed-hero {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 41, 59, 0.85) 100%);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 24px 28px;
  margin-bottom: 24px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.speed-gauges {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.speed-box {
  display: flex;
  flex-direction: column;
}
.speed-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 5px;
}
.speed-val {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  font-family: monospace;
}
.speed-val.tx { color: #38bdf8; text-shadow: 0 0 14px rgba(56, 189, 248, 0.35); }
.speed-val.rx { color: #34d399; text-shadow: 0 0 14px rgba(52, 211, 153, 0.35); }
.speed-val.subs { color: #a78bfa; text-shadow: 0 0 14px rgba(167, 139, 250, 0.35); }

/* ================= BUTTONS ================= */
.btn-primary {
  background: linear-gradient(135deg, #00f0ff 0%, #3b82f6 100%);
  color: #040914;
  border: none;
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 16px rgba(0, 240, 255, 0.3);
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(0, 240, 255, 0.5);
}
.btn-action-small {
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(148, 163, 184, 0.25);
  color: var(--text-main);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.btn-action-small:hover {
  background: rgba(51, 65, 85, 0.95);
  border-color: var(--accent-cyan);
  transform: translateY(-1px);
}
.btn-action-danger {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-action-danger:hover {
  background: var(--status-err);
  color: #fff;
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.4);
}

/* ================= METRIC ROWS & PILLS ================= */
.metric-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 0;
  border-bottom: 1px solid rgba(51, 65, 85, 0.3);
  font-size: 13px;
}
.metric-row:last-child { border-bottom: none; }
.metric-name { color: var(--text-muted); }
.metric-val { font-weight: 600; color: #fff; }

/* FIX BADGE WRAPPING & OVERLAPS: ALWAYS SINGLE LINE */
.status-pill {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 4px 10px;
  border-radius: 99px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  line-height: 1.2;
}
.status-pill.active {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.35);
  color: #34d399;
}
.status-pill.unbound {
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.35);
  color: #38bdf8;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.15);
}
.status-pill.bound {
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.35);
  color: #c084fc;
}
.status-pill.overflow {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #f87171;
}
.status-pill.radar-active {
  background: rgba(0, 240, 255, 0.16);
  border: 1px solid rgba(0, 240, 255, 0.45);
  color: #00f0ff;
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.22);
}
.status-pill.radar-idle {
  background: rgba(100, 116, 139, 0.18);
  border: 1px solid rgba(100, 116, 139, 0.38);
  color: #94a3b8;
}

/* COUNTDOWN BADGE */
.countdown-badge {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  font-weight: 700;
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.28);
  border-radius: 6px;
  padding: 3px 8px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}
.countdown-badge.expired {
  color: #f87171;
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.35);
}
.countdown-badge.infinite {
  color: #c084fc;
  background: rgba(139, 92, 246, 0.12);
  border-color: rgba(139, 92, 246, 0.35);
  font-size: 13px;
}

/* ================= SUBSCRIPTIONS TABLE ================= */
.sub-table-wrapper {
  overflow-x: auto;
  border-radius: 14px;
  border: 1px solid rgba(51, 65, 85, 0.4);
}
.sub-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  text-align: left;
}
.sub-table th {
  background: rgba(15, 23, 42, 0.9);
  padding: 13px 16px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(51, 65, 85, 0.5);
  white-space: nowrap;
}
.sub-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(51, 65, 85, 0.25);
  vertical-align: middle;
  white-space: nowrap;
}
.sub-row {
  cursor: pointer;
  transition: all 0.18s ease;
}
.sub-row:hover {
  background: rgba(56, 189, 248, 0.06);
}

.progress-track {
  width: 100%;
  height: 6px;
  background: rgba(30, 41, 59, 0.85);
  border-radius: 99px;
  overflow: hidden;
  margin-top: 6px;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #00f0ff, #3b82f6);
  border-radius: 99px;
  transition: width 0.3s ease;
}

/* ================= TERMINAL WINDOW ================= */
.terminal-window {
  background: #020408;
  border: 1px solid rgba(51, 65, 85, 0.6);
  border-radius: 14px;
  overflow: hidden;
}
.terminal-bar {
  background: rgba(15, 23, 42, 0.9);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(51, 65, 85, 0.5);
  flex-wrap: wrap;
  gap: 10px;
}
.term-tab-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.term-tab-btn.active {
  background: rgba(56, 189, 248, 0.15);
  border-color: rgba(56, 189, 248, 0.4);
  color: var(--accent-cyan);
}
.terminal-body {
  height: 380px;
  overflow-y: auto;
  padding: 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  line-height: 1.5;
  color: #94a3b8;
  white-space: pre-wrap;
  word-break: break-all;
}
.log-line { margin-bottom: 2px; }
.log-err { color: #f87171; }
.log-succ { color: #34d399; }
.log-warn { color: #fbbf24; }

/* ================= CUSTOM CONFIRM / DIALOG MODAL ================= */
.confirm-box {
  background: var(--bg-card);
  border: 1px solid rgba(239, 68, 68, 0.4);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7), 0 0 30px rgba(239, 68, 68, 0.25);
  border-radius: 20px;
  padding: 26px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  animation: modalScaleIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.confirm-box.info {
  border-color: var(--border);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7), var(--glow-cyan);
}
.confirm-icon {
  font-size: 38px;
  margin-bottom: 12px;
}
.confirm-title {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.confirm-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.45;
  margin-bottom: 22px;
}
.confirm-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
}

/* ================= MODALS & FORMS ================= */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(12px);
  z-index: 200;
  place-items: center;
  padding: 20px;
}
.modal-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 28px;
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.65), var(--glow-cyan);
  animation: modalScaleIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.modal-box.wide { max-width: 650px; }

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

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  background: transparent;
  border: none;
  font-size: 24px;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.15s;
}
.modal-close:hover { color: #fff; }

.form-group {
  margin-bottom: 18px;
}
.form-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.form-input {
  width: 100%;
  background: rgba(11, 19, 37, 0.85);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: 12px;
  padding: 13px 16px;
  color: #f8fafc;
  font-size: 14px;
  outline: none;
  caret-color: var(--accent-cyan);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.form-input::placeholder {
  color: rgba(148, 163, 184, 0.4);
}
.form-input:focus {
  border-color: var(--accent-cyan);
  background: rgba(13, 24, 46, 0.95);
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.35);
}

/* FIX BROWSER AUTOFILL UGLY WHITE/LIGHT-BLUE BACKGROUND */
input:-webkit-autofill,
input:-webkit-autofill:hover, 
input:-webkit-autofill:focus, 
input:-webkit-autofill:active,
.form-input:-webkit-autofill,
.form-input:-webkit-autofill:hover,
.form-input:-webkit-autofill:focus,
.form-input:-webkit-autofill:active {
  -webkit-box-shadow: 0 0 0 1000px #0b1325 inset !important;
  box-shadow: 0 0 0 1000px #0b1325 inset !important;
  -webkit-text-fill-color: #f8fafc !important;
  color: #f8fafc !important;
  caret-color: var(--accent-cyan) !important;
  border-color: rgba(56, 189, 248, 0.4) !important;
  transition: background-color 5000s ease-in-out 0s;
  background-color: #0b1325 !important;
}

/* CYBER TOGGLE SWITCH */
.toggle-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(15, 23, 42, 0.6);
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid rgba(51, 65, 85, 0.4);
  margin-bottom: 12px;
}
.toggle-text {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}
.cyber-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}
.cyber-switch input { opacity: 0; width: 0; height: 0; }
.switch-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: rgba(51, 65, 85, 0.8);
  border-radius: 24px;
  transition: 0.25s;
  border: 1px solid rgba(148, 163, 184, 0.3);
}
.switch-slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  border-radius: 50%;
  transition: 0.25s;
}
.cyber-switch input:checked + .switch-slider {
  background-color: #0284c7;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.4);
}
.cyber-switch input:checked + .switch-slider:before {
  transform: translateX(20px);
  background-color: #fff;
}

.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(15, 23, 42, 0.96);
  border: 1px solid var(--accent-cyan);
  box-shadow: var(--glow-cyan);
  color: #fff;
  padding: 12px 20px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 600;
  z-index: 300;
  display: none;
  animation: tabFadeIn 0.2s ease-out;
}

/* ================= LOGIN ================= */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  width: 100%;
}
.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  backdrop-filter: blur(24px);
  border-radius: 24px;
  padding: 38px 36px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6), var(--glow-cyan);
  animation: tabFadeIn 0.3s ease-out;
}
.login-header {
  text-align: center;
  margin-bottom: 28px;
}
.login-logo {
  width: 76px;
  height: 76px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.login-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 20px;
  border: 1.5px solid rgba(56, 189, 248, 0.6);
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.45);
  animation: logoPulse 4s ease-in-out infinite alternate;
}
@keyframes logoPulse {
  0% { box-shadow: 0 0 20px rgba(0, 240, 255, 0.35); border-color: rgba(56, 189, 248, 0.5); }
  100% { box-shadow: 0 0 32px rgba(139, 92, 246, 0.65); border-color: rgba(168, 85, 247, 0.85); }
}
.login-title {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, #fff, #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.login-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 6px;
}
.btn-submit {
  width: 100%;
  padding: 13px;
  margin-top: 8px;
  background: linear-gradient(135deg, #00f0ff 0%, #3b82f6 100%);
  color: #040914;
  border: none;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0, 240, 255, 0.35);
  transition: all 0.2s;
}
.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 26px rgba(0, 240, 255, 0.5);
}
.login-error {
  display: none;
  margin-top: 16px;
  padding: 10px 14px;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 10px;
  color: #f87171;
  font-size: 13px;
  text-align: center;
}

/* ================= MOBILE RESPONSIVE ENGINE (320px - 768px) ================= */

@media (max-width: 900px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .header-inner {
    padding: 10px 14px;
    gap: 10px;
  }
  .brand {
    flex: 1;
    min-width: 0;
  }
  .brand-icon {
    width: 36px;
    height: 36px;
  }
  .brand-name {
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .brand-sub {
    display: none; /* Hide cluster subtitle on small mobile screens */
  }
  .btn-logout {
    padding: 6px 12px;
    font-size: 12px;
  }

  /* Full-width horizontally scrollable swipe tabs */
  .nav-tabs {
    width: 100%;
    order: 3;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    display: flex;
    gap: 4px;
    padding: 3px;
  }
  .nav-tabs::-webkit-scrollbar {
    display: none;
  }
  .tab-btn {
    flex-shrink: 0;
    padding: 7px 12px;
    font-size: 12px;
    white-space: nowrap;
  }

  .container {
    padding: 0 12px;
    margin-top: 14px;
  }

  /* Speed Hero: 2x2 Clean Grid on Mobile */
  .speed-hero {
    padding: 18px 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
  }
  .speed-gauges {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    width: 100%;
  }
  .speed-box {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(51, 65, 85, 0.4);
    border-radius: 12px;
    padding: 10px 12px;
  }
  .speed-val {
    font-size: 22px;
  }
  #btnQuickCreateSub {
    width: 100%;
    justify-content: center;
    padding: 12px;
  }

  /* Cards & Spacing */
  .card {
    padding: 16px;
    border-radius: 14px;
  }
  .card-header {
    margin-bottom: 12px;
  }

  /* Modals */
  .modal-overlay {
    padding: 12px;
  }
  .modal-box {
    padding: 20px 16px;
    border-radius: 16px;
    max-width: 95vw;
  }
}

@media (max-width: 480px) {
  .speed-val {
    font-size: 19px;
  }
  .speed-val span {
    font-size: 12px !important;
  }
  .speed-label {
    font-size: 9.5px;
  }

  /* Subscriptions Table: touch-optimized scrolling */
  .sub-table th, .sub-table td {
    padding: 10px 12px;
    font-size: 12px;
  }

  /* Toast notification position */
  .toast {
    left: 12px;
    right: 12px;
    bottom: 16px;
    text-align: center;
  }
}