/* ============================================
   EDUPASS POPUP SYSTEM
   Thay thế alert / confirm / prompt native
   ============================================ */

.ep-popup-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10,15,40,.55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    animation: epPopupFadeIn .2s ease;
}
@keyframes epPopupFadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.ep-popup {
    background: #fff;
    border-radius: 24px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 24px 64px rgba(0,0,0,.22), 0 0 0 1px rgba(79,70,229,.08);
    overflow: hidden;
    animation: epPopupSlideUp .28s cubic-bezier(.22,.68,0,1.2);
}
@keyframes epPopupSlideUp {
    from { opacity: 0; transform: translateY(24px) scale(.96); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* Header */
.ep-popup-header {
    padding: 1.4rem 1.6rem 1rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}
.ep-popup-icon {
    width: 48px; height: 48px;
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}
.ep-popup-icon.info    { background: #eff6ff; }
.ep-popup-icon.success { background: #f0fdf4; }
.ep-popup-icon.warning { background: #fffbeb; }
.ep-popup-icon.error   { background: #fef2f2; }
.ep-popup-icon.confirm { background: #f5f3ff; }
.ep-popup-icon.prompt  { background: #f0f9ff; }

.ep-popup-titles { flex: 1; }
.ep-popup-title {
    font-size: 1.05rem;
    font-weight: 800;
    color: #1a1a2e;
    margin: 0 0 .25rem;
    line-height: 1.3;
}
.ep-popup-msg {
    font-size: .9rem;
    color: #5a6a8a;
    line-height: 1.6;
    margin: 0;
}

/* Prompt input */
.ep-popup-input-wrap { padding: 0 1.6rem .4rem; }
.ep-popup-input {
    width: 100%;
    border: 1.5px solid #e0e7ff;
    border-radius: 12px;
    padding: .75rem 1rem;
    font-size: .95rem;
    font-family: inherit;
    outline: none;
    color: #1a1a2e;
    background: #f8f7ff;
    box-sizing: border-box;
    transition: border-color .2s, box-shadow .2s;
}
.ep-popup-input:focus {
    border-color: #4f46e5;
    box-shadow: 0 0 0 3px rgba(79,70,229,.12);
    background: #fff;
}

/* Footer */
.ep-popup-footer {
    padding: 1rem 1.6rem 1.4rem;
    display: flex;
    gap: .7rem;
    justify-content: flex-end;
}
.ep-popup-btn {
    padding: .65rem 1.5rem;
    border: none;
    border-radius: 12px;
    font-size: .9rem;
    font-weight: 700;
    cursor: pointer;
    transition: transform .15s, box-shadow .15s, opacity .15s;
    min-height: 44px;
    font-family: inherit;
}
.ep-popup-btn:hover { transform: translateY(-1px); }
.ep-popup-btn:active { transform: translateY(0); }

.ep-popup-btn-cancel {
    background: #f1f0ff;
    color: #4f46e5;
    border: 1.5px solid #e0d9ff;
}
.ep-popup-btn-cancel:hover { background: #e8e5ff; }

.ep-popup-btn-ok {
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: #fff;
    box-shadow: 0 4px 14px rgba(79,70,229,.3);
}
.ep-popup-btn-ok:hover { box-shadow: 0 6px 20px rgba(79,70,229,.4); }

.ep-popup-btn-ok.success { background: linear-gradient(135deg, #16a34a, #22c55e); box-shadow: 0 4px 14px rgba(22,163,74,.3); }
.ep-popup-btn-ok.warning { background: linear-gradient(135deg, #d97706, #f59e0b); box-shadow: 0 4px 14px rgba(217,119,6,.3); }
.ep-popup-btn-ok.error   { background: linear-gradient(135deg, #dc2626, #ef4444); box-shadow: 0 4px 14px rgba(220,38,38,.3); }
.ep-popup-btn-ok.confirm { background: linear-gradient(135deg, #4f46e5, #7c3aed); }

/* Divider line */
.ep-popup-divider {
    height: 1px;
    background: #f0f0f8;
    margin: 0 1.6rem;
}

/* Mobile */
@media (max-width: 480px) {
    .ep-popup-overlay { align-items: flex-end; padding: 0; }
    .ep-popup { border-radius: 24px 24px 0 0; max-width: 100%; }
    .ep-popup-footer { flex-direction: column-reverse; }
    .ep-popup-btn { width: 100%; text-align: center; }
}