/* ============================================
   FlashMail — Acid Neon / Retro-Futuristic
   ============================================ */

:root {
  --neon-green: #CCFF00;
  --neon-pink: #FF3CAC;
  --neon-blue: #00D4FF;
  --bg-dark: #0A0A0A;
  --bg-card: #111111;
  --bg-card2: #161616;
  --border: rgba(204, 255, 0, 0.15);
  --border-bright: rgba(204, 255, 0, 0.4);
  --text-primary: #F0F0F0;
  --text-secondary: #888888;
  --text-muted: #555555;
  --font-display: 'Clash Display', sans-serif;
  --font-mono: 'Space Mono', monospace;
  --font-body: 'Outfit', sans-serif;
  --radius: 16px;
  --radius-sm: 10px;
  --glow-green: 0 0 20px rgba(204, 255, 0, 0.3), 0 0 60px rgba(204, 255, 0, 0.1);
  --glow-pink: 0 0 20px rgba(255, 60, 172, 0.3), 0 0 60px rgba(255, 60, 172, 0.1);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-body);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* ── Background ── */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(204,255,0,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(204,255,0,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
}
.bg-glow-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(204,255,0,0.2) 0%, transparent 70%);
  top: -200px; left: -200px;
  animation: driftA 18s ease-in-out infinite alternate;
}
.bg-glow-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(255,60,172,0.2) 0%, transparent 70%);
  bottom: -150px; right: -150px;
  animation: driftB 22s ease-in-out infinite alternate;
}

@keyframes driftA {
  from { transform: translate(0, 0); }
  to   { transform: translate(80px, 60px); }
}
@keyframes driftB {
  from { transform: translate(0, 0); }
  to   { transform: translate(-60px, -80px); }
}

/* ── Header ── */
.header {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 40px;
  border-bottom: 1px solid var(--border);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon {
  font-size: 24px;
  filter: drop-shadow(0 0 8px var(--neon-green));
}
.logo-text {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--neon-green);
  letter-spacing: -0.5px;
  text-shadow: 0 0 20px rgba(204,255,0,0.5);
}

.header-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--neon-green);
  background: rgba(204,255,0,0.08);
  border: 1px solid rgba(204,255,0,0.2);
  padding: 6px 14px;
  border-radius: 100px;
  letter-spacing: 0.5px;
}

/* ── Main ── */
.main {
  position: relative;
  z-index: 5;
  max-width: 720px;
  margin: 0 auto;
  padding: 60px 24px 80px;
}

/* ── Hero ── */
.hero {
  text-align: center;
  margin-bottom: 52px;
  animation: fadeUp 0.7s ease both;
}

.hero-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--neon-pink);
  background: rgba(255,60,172,0.08);
  border: 1px solid rgba(255,60,172,0.2);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(42px, 8vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.gradient-text {
  background: linear-gradient(135deg, var(--neon-green) 0%, var(--neon-blue) 50%, var(--neon-pink) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 30px rgba(204,255,0,0.3));
}

.hero-sub {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 480px;
  margin: 0 auto;
  font-weight: 300;
}

/* ── Generator Card ── */
.generator-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 24px;
  animation: fadeUp 0.7s 0.15s ease both;
  position: relative;
  overflow: hidden;
}

.generator-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon-green), transparent);
  opacity: 0.6;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.card-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--text-muted);
}

.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: all 0.3s;
}
.status-dot.active {
  background: var(--neon-green);
  box-shadow: 0 0 8px var(--neon-green), 0 0 16px rgba(204,255,0,0.4);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ── Custom Input Row ── */
.custom-row {
  margin-bottom: 16px;
}

.custom-input-wrap {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.2s;
}
.custom-input-wrap:focus-within {
  border-color: var(--border-bright);
  box-shadow: 0 0 0 3px rgba(204,255,0,0.06);
}

.custom-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-primary);
  min-width: 0;
}
.custom-input::placeholder { color: var(--text-muted); }

.at-sign {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--neon-green);
  padding: 0 4px;
  flex-shrink: 0;
}

.domain-select {
  background: rgba(204,255,0,0.05);
  border: none;
  border-left: 1px solid var(--border);
  outline: none;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--neon-green);
  cursor: pointer;
  flex-shrink: 0;
}
.domain-select option {
  background: #1a1a1a;
  color: var(--text-primary);
}

/* ── Email Display ── */
.email-display {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: rgba(204,255,0,0.04);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  margin-bottom: 20px;
  min-height: 62px;
  transition: all 0.3s;
}

.email-display.has-email {
  box-shadow: var(--glow-green);
  border-color: rgba(204,255,0,0.5);
}

.email-text {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--text-muted);
  word-break: break-all;
  transition: color 0.3s;
  flex: 1;
}
.email-text.active {
  color: var(--neon-green);
  text-shadow: 0 0 12px rgba(204,255,0,0.4);
  animation: typeIn 0.4s ease;
}

@keyframes typeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.copy-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(204,255,0,0.1);
  border: 1px solid rgba(204,255,0,0.25);
  border-radius: 8px;
  padding: 8px 14px;
  color: var(--neon-green);
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
  white-space: nowrap;
}
.copy-btn:hover:not(:disabled) {
  background: rgba(204,255,0,0.2);
  box-shadow: 0 0 12px rgba(204,255,0,0.2);
}
.copy-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}
.copy-btn.copied {
  background: rgba(204,255,0,0.25);
  color: var(--neon-green);
}

/* ── Action Buttons ── */
.action-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  flex: 1;
  justify-content: center;
  min-width: 120px;
}

.btn-primary {
  background: var(--neon-green);
  color: #0A0A0A;
}
.btn-primary:hover {
  background: #d9ff1a;
  box-shadow: var(--glow-green);
  transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover:not(:disabled) {
  border-color: var(--border-bright);
  background: rgba(204,255,0,0.05);
  color: var(--neon-green);
}
.btn-secondary:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.btn-danger {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid rgba(255,60,172,0.2);
}
.btn-danger:hover:not(:disabled) {
  border-color: rgba(255,60,172,0.5);
  color: var(--neon-pink);
  background: rgba(255,60,172,0.05);
  box-shadow: var(--glow-pink);
}
.btn-danger:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* ── Auto Refresh ── */
.auto-refresh-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.toggle-label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}

.toggle-input { display: none; }

.toggle-slider {
  width: 40px; height: 22px;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: 100px;
  position: relative;
  transition: all 0.3s;
  flex-shrink: 0;
}
.toggle-slider::after {
  content: '';
  position: absolute;
  width: 16px; height: 16px;
  background: var(--text-muted);
  border-radius: 50%;
  top: 2px; left: 2px;
  transition: all 0.3s;
}
.toggle-input:checked + .toggle-slider {
  background: rgba(204,255,0,0.15);
  border-color: var(--neon-green);
}
.toggle-input:checked + .toggle-slider::after {
  background: var(--neon-green);
  transform: translateX(18px);
  box-shadow: 0 0 8px rgba(204,255,0,0.5);
}

.toggle-text {
  font-size: 13px;
  color: var(--text-secondary);
}
.toggle-text strong { color: var(--text-primary); }

.countdown {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--neon-green);
  opacity: 0.7;
}

/* ── Inbox Section ── */
.inbox-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  animation: fadeUp 0.5s ease both;
  margin-bottom: 24px;
}

.inbox-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  border-bottom: 1px solid var(--border);
}

.inbox-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}
.inbox-title svg { color: var(--neon-green); }

.inbox-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  background: var(--bg-card2);
  padding: 4px 12px;
  border-radius: 100px;
  border: 1px solid var(--border);
}

/* ── Empty State ── */
.empty-state {
  text-align: center;
  padding: 60px 24px;
}
.empty-icon { font-size: 48px; margin-bottom: 16px; }
.empty-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.empty-sub {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 320px;
  margin: 0 auto;
}

/* ── Messages List ── */
.messages-list { padding: 8px; }

.message-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid transparent;
  margin-bottom: 4px;
  position: relative;
}
.message-item:hover {
  background: rgba(204,255,0,0.04);
  border-color: var(--border);
}
.message-item.unread::before {
  content: '';
  position: absolute;
  left: 8px; top: 50%;
  transform: translateY(-50%);
  width: 6px; height: 6px;
  background: var(--neon-green);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--neon-green);
}

.msg-avatar {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(204,255,0,0.15), rgba(255,60,172,0.15));
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--neon-green);
  flex-shrink: 0;
}

.msg-content { flex: 1; min-width: 0; }

.msg-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.msg-from {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

.msg-time {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.msg-subject {
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.msg-arrow {
  color: var(--text-muted);
  flex-shrink: 0;
  transition: color 0.2s;
}
.message-item:hover .msg-arrow { color: var(--neon-green); }

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  width: 100%;
  max-width: 640px;
  max-height: 80vh;
  overflow-y: auto;
  padding: 32px;
  box-shadow: var(--glow-green);
  transform: translateY(20px);
  transition: transform 0.3s;
}
.modal-overlay.open .modal {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 16px;
}

.modal-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.modal-from {
  font-size: 14px;
  font-weight: 600;
  color: var(--neon-green);
  font-family: var(--font-mono);
}

.modal-date {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.modal-close {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}
.modal-close:hover {
  background: rgba(255,60,172,0.1);
  border-color: rgba(255,60,172,0.3);
  color: var(--neon-pink);
}

.modal-subject {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
  line-height: 1.3;
}

.modal-body {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-word;
}
.modal-body a {
  color: var(--neon-green);
  text-decoration: underline;
}

/* ── Features Strip ── */
.features {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 24px;
  animation: fadeUp 0.7s 0.3s ease both;
}

.feature {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
}

.feature-icon { font-size: 18px; }

.feature-text {
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
}

.feature-divider {
  width: 1px;
  height: 24px;
  background: var(--border);
}

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--bg-card);
  border: 1px solid var(--border-bright);
  border-radius: 100px;
  padding: 12px 24px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--neon-green);
  box-shadow: var(--glow-green);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s;
  white-space: nowrap;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── Footer ── */
.footer {
  position: relative;
  z-index: 5;
  text-align: center;
  padding: 24px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
}
.footer a {
  color: var(--neon-green);
  text-decoration: none;
  opacity: 0.7;
  transition: opacity 0.2s;
}
.footer a:hover { opacity: 1; }

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Loading spinner ── */
.spinner {
  display: inline-block;
  width: 14px; height: 14px;
  border: 2px solid rgba(10,10,10,0.3);
  border-top-color: #0A0A0A;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-bright); }

/* ── Responsive ── */
@media (max-width: 600px) {
  .header { padding: 16px 20px; }
  .header-badge { display: none; }
  .main { padding: 40px 16px 60px; }
  .generator-card { padding: 24px 20px; }
  .action-row { flex-direction: column; }
  .btn { flex: none; width: 100%; }
  .features { gap: 8px; }
  .feature-divider { display: none; }
  .feature { padding: 6px 12px; }
  .modal { padding: 24px 20px; }
  .custom-input-wrap { flex-wrap: wrap; }
  .domain-select { width: 100%; border-left: none; border-top: 1px solid var(--border); }
}