/* ============================================================
   Lightbox Notification – Diệu Tâm
   BEM block: .dt-notify
   ============================================================ */

/* ── Custom Properties ────────────────────────────────────── */
:root {
  /* success */
  --dt-notify-success-from: #10b981;
  --dt-notify-success-to:   #059669;
  --dt-notify-success-glow: rgba(16, 185, 129, .25);
  --dt-notify-success-border: #10b981;

  /* error */
  --dt-notify-error-from: #ef4444;
  --dt-notify-error-to:   #dc2626;
  --dt-notify-error-glow: rgba(239, 68, 68, .20);
  --dt-notify-error-border: #ef4444;

  /* warning */
  --dt-notify-warning-from: #f59e0b;
  --dt-notify-warning-to:   #d97706;
  --dt-notify-warning-glow: rgba(245, 158, 11, .20);
  --dt-notify-warning-border: #f59e0b;

  /* card */
  --dt-notify-radius: 20px;
  --dt-notify-shadow: 0 25px 60px rgba(0,0,0,.35), 0 8px 24px rgba(0,0,0,.18);
  --dt-notify-backdrop: rgba(15, 15, 20, .65);
}

/* ── Backdrop ─────────────────────────────────────────────── */
.dt-notify__overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--dt-notify-backdrop);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .35s cubic-bezier(.4,0,.2,1),
              visibility .35s;
  padding: 24px;
}

.dt-notify__overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

/* ── Card ─────────────────────────────────────────────────── */
.dt-notify__card {
  position: relative;
  width: 100%;
  max-width: 440px;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  border: 1px solid rgba(255, 255, 255, .45);
  border-radius: var(--dt-notify-radius);
  box-shadow: var(--dt-notify-shadow);
  padding: 40px 32px 32px;
  text-align: center;
  overflow: hidden;
  transform: scale(.88) translateY(24px);
  opacity: 0;
  transition: transform .4s cubic-bezier(.34,1.56,.64,1),
              opacity .35s ease;
}

.dt-notify__overlay.is-visible .dt-notify__card {
  transform: scale(1) translateY(0);
  opacity: 1;
}

/* coloured top stripe */
.dt-notify__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  border-radius: var(--dt-notify-radius) var(--dt-notify-radius) 0 0;
}

/* ── Close button ─────────────────────────────────────────── */
.dt-notify__close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border: none;
  background: rgba(0, 0, 0, .06);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: #64748b;
  transition: background .2s, color .2s, transform .2s;
  z-index: 2;
}

.dt-notify__close:hover {
  background: rgba(0, 0, 0, .12);
  color: #1e293b;
  transform: rotate(90deg);
}

/* ── Icon circle ──────────────────────────────────────────── */
.dt-notify__icon {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 34px;
  color: #fff;
  position: relative;
  z-index: 1;
  animation: dt-notify-pop .5s cubic-bezier(.34,1.56,.64,1) .15s both;
}

/* glow ring behind the icon */
.dt-notify__icon::after {
  content: '';
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  opacity: .55;
  animation: dt-notify-pulse 2s ease-in-out infinite;
  z-index: -1;
}

@keyframes dt-notify-pop {
  0%   { transform: scale(0); }
  100% { transform: scale(1); }
}

@keyframes dt-notify-pulse {
  0%, 100% { transform: scale(1);   opacity: .4; }
  50%      { transform: scale(1.18); opacity: .15; }
}

/* ── Title ────────────────────────────────────────────────── */
.dt-notify__title {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: #1e293b;
  margin: 0 0 10px;
  line-height: 1.3;
}

/* ── Message ──────────────────────────────────────────────── */
.dt-notify__message {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: #475569;
  margin: 0 0 24px;
  white-space: pre-line;
}

/* ── Actions area ─────────────────────────────────────────── */
.dt-notify__actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dt-notify__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border: none;
  border-radius: 12px;
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: transform .2s, box-shadow .2s, filter .2s;
}

.dt-notify__btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.08);
}

.dt-notify__btn:active {
  transform: translateY(0);
}

.dt-notify__btn--action {
  color: #fff;
}

.dt-notify__btn--dismiss {
  background: transparent;
  color: #64748b;
  font-weight: 500;
  font-size: 14px;
}

.dt-notify__btn--dismiss:hover {
  color: #334155;
  background: rgba(0,0,0,.04);
}

/* ── Countdown bar ────────────────────────────────────────── */
.dt-notify__countdown {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  border-radius: 0 0 var(--dt-notify-radius) var(--dt-notify-radius);
  transition: width linear;
}

/* ================================================================
   TYPE VARIANTS
   ================================================================ */

/* ─── SUCCESS ──────────────────────────────────────────────── */
.dt-notify--success .dt-notify__card::before {
  background: linear-gradient(90deg, var(--dt-notify-success-from), var(--dt-notify-success-to));
}
.dt-notify--success .dt-notify__icon {
  background: linear-gradient(135deg, var(--dt-notify-success-from), var(--dt-notify-success-to));
  box-shadow: 0 6px 24px var(--dt-notify-success-glow);
}
.dt-notify--success .dt-notify__icon::after {
  background: radial-gradient(circle, var(--dt-notify-success-glow), transparent 70%);
}
.dt-notify--success .dt-notify__btn--action {
  background: linear-gradient(135deg, var(--dt-notify-success-from), var(--dt-notify-success-to));
  box-shadow: 0 4px 16px var(--dt-notify-success-glow);
}
.dt-notify--success .dt-notify__countdown {
  background: linear-gradient(90deg, var(--dt-notify-success-from), var(--dt-notify-success-to));
}

/* ─── ERROR ────────────────────────────────────────────────── */
.dt-notify--error .dt-notify__card::before {
  background: linear-gradient(90deg, var(--dt-notify-error-from), var(--dt-notify-error-to));
}
.dt-notify--error .dt-notify__icon {
  background: linear-gradient(135deg, var(--dt-notify-error-from), var(--dt-notify-error-to));
  box-shadow: 0 6px 24px var(--dt-notify-error-glow);
}
.dt-notify--error .dt-notify__icon::after {
  background: radial-gradient(circle, var(--dt-notify-error-glow), transparent 70%);
}
.dt-notify--error .dt-notify__btn--action {
  background: linear-gradient(135deg, var(--dt-notify-error-from), var(--dt-notify-error-to));
  box-shadow: 0 4px 16px var(--dt-notify-error-glow);
}
.dt-notify--error .dt-notify__countdown {
  background: linear-gradient(90deg, var(--dt-notify-error-from), var(--dt-notify-error-to));
}

/* ─── WARNING ──────────────────────────────────────────────── */
.dt-notify--warning .dt-notify__card::before {
  background: linear-gradient(90deg, var(--dt-notify-warning-from), var(--dt-notify-warning-to));
}
.dt-notify--warning .dt-notify__icon {
  background: linear-gradient(135deg, var(--dt-notify-warning-from), var(--dt-notify-warning-to));
  box-shadow: 0 6px 24px var(--dt-notify-warning-glow);
}
.dt-notify--warning .dt-notify__icon::after {
  background: radial-gradient(circle, var(--dt-notify-warning-glow), transparent 70%);
}
.dt-notify--warning .dt-notify__btn--action {
  background: linear-gradient(135deg, var(--dt-notify-warning-from), var(--dt-notify-warning-to));
  box-shadow: 0 4px 16px var(--dt-notify-warning-glow);
}
.dt-notify--warning .dt-notify__countdown {
  background: linear-gradient(90deg, var(--dt-notify-warning-from), var(--dt-notify-warning-to));
}

/* ================================================================
   CONFETTI / PARTICLES  (success only)
   ================================================================ */
.dt-notify__confetti {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.dt-notify__particle {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  opacity: 0;
  animation: dt-confetti-fall 2.8s ease-out forwards;
}

@keyframes dt-confetti-fall {
  0% {
    opacity: 1;
    transform: translate(0, 0) rotate(0deg) scale(1);
  }
  20% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate(var(--dx), var(--dy)) rotate(var(--rot)) scale(.3);
  }
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 480px) {
  .dt-notify__overlay {
    padding: 16px;
  }
  .dt-notify__card {
    padding: 32px 20px 24px;
    border-radius: 16px;
  }
  .dt-notify__icon {
    width: 64px;
    height: 64px;
    font-size: 28px;
  }
  .dt-notify__title {
    font-size: 19px;
  }
  .dt-notify__message {
    font-size: 14px;
  }
  .dt-notify__btn {
    padding: 11px 20px;
    font-size: 14px;
  }
  .dt-notify__close {
    width: 28px;
    height: 28px;
    font-size: 12px;
  }
}