/**
 * StudyHub.AZ - Стили уведомлений 2026
 * Централизованный файл для message-container, notification-toast, stats-notification, student-notification
 * Использует переменные из vars.css
 *
 * Медиа-запросы и адаптивные стили — в responsive.css (архитектура: mobile ≤767px, tablet 768-1024px, desktop ≥1025px)
 */

/* === 🎯 MESSAGE CONTAINER (центр) === */
.message-container {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: var(--z-toast, 9999);
    width: auto;
    max-width: 90vw;
    min-width: 320px;
    pointer-events: none;
}

/* === 🎨 ALERT (message-container content) === */
.message-container .alert {
    /* Сброс стилей из components.css .alert:not(.notification-toast) */
    display: block;
    position: relative;
    margin-bottom: 10px;
    padding: 0;
    border: 1px solid transparent;
    border-radius: var(--notif-radius-lg);
    box-shadow: var(--notif-shadow);
    backdrop-filter: var(--notif-backdrop);
    -webkit-backdrop-filter: var(--notif-backdrop);
    pointer-events: auto;
    overflow: hidden;
    animation: notifSlideInDown 0.4s ease-out;
    transition: box-shadow var(--notif-transition), transform var(--notif-transition);
}

.message-container .alert:hover {
    transform: translateY(-2px);
    box-shadow: var(--notif-shadow-hover);
}

.message-container .alert-content {
    display: flex;
    align-items: flex-start;
    padding: var(--notif-padding);
    gap: var(--notif-gap);
}

.message-container .alert-icon {
    flex-shrink: 0;
    font-size: var(--notif-icon-size);
    margin-top: 2px;
}

.message-container .alert-body {
    flex: 1;
    min-width: 0;
}

.message-container .alert-text {
    line-height: 1.5;
    word-wrap: break-word;
}

.message-container .alert-close {
    flex-shrink: 0;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    min-width: var(--notif-close-min);
    min-height: var(--notif-close-min);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    opacity: 0.6;
}

.message-container .alert-close:hover {
    background: rgba(0, 0, 0, 0.1);
    opacity: 1;
    transform: scale(1.1);
}

.message-container .alert-close:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 2px;
}

.message-container .alert-actions {
    display: flex;
    gap: 8px;
    margin-top: 12px;
    flex-wrap: wrap;
}

.message-container .alert-actions .btn {
    padding: 6px 12px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-size: 0.875em;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* === 📊 Progress bar === */
.message-container .alert-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.message-container .progress-bar {
    height: 100%;
    background: currentColor;
    opacity: 0.3;
    animation: notifProgressShrink linear forwards;
}

/* === 🎨 Color schemes (message-container) === */
.message-container .alert-success {
    background: linear-gradient(135deg, #dcfce7, #bbf7d0);
    border-color: #86efac;
    color: #166534;
}

.message-container .alert-error,
.message-container .alert-danger {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    border-color: #fca5a5;
    color: #991b1b;
}

.message-container .alert-info {
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    border-color: #93c5fd;
    color: #1e40af;
}

.message-container .alert-warning {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    border-color: #fcd34d;
    color: #92400e;
}

.message-container .alert-primary {
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    border-color: #93c5fd;
    color: #1e40af;
}

.message-container .alert-light {
    background: linear-gradient(135deg, #f8fafc, #f1f5f9);
    border-color: #e2e8f0;
    color: #475569;
}

.message-container .alert-dark {
    background: linear-gradient(135deg, #1e293b, #334155);
    border-color: #475569;
    color: #f8fafc;
}

.message-container .alert-neutral {
    background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
    border-color: #cbd5e1;
    color: #334155;
}

.message-container .alert-dark-theme {
    background: rgba(30, 30, 30, 0.95) !important;
    color: #ffffff !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
}

/* === 🎭 Animations === */
@keyframes notifSlideInDown {
    from {
        opacity: 0;
        transform: translateY(-100%);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes notifSlideOutUp {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-100%);
    }
}

@keyframes notifProgressShrink {
    from { width: 100%; }
    to { width: 0%; }
}

@keyframes notifPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.message-container .alert.removing {
    animation: notifSlideOutUp 0.3s ease-in forwards;
}

.message-container .alert.pulsing {
    animation: notifPulse 2s infinite;
}

/* === FIXED NOTIFICATION UTILITIES === */
.notification-fixed {
    top: 20px !important;
    right: 20px !important;
    z-index: var(--z-toast, 9999) !important;
    min-width: 300px !important;
}

.notifications-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: var(--z-toast, 9999);
    max-width: 400px;
}

/* === NOTIFICATION TOAST (центр) === */
body > .notification-toast,
body > .alert.notification-toast {
    position: fixed !important;
    top: 24px !important;
    left: 50% !important;
    right: auto !important;
    bottom: auto !important;
    transform: translateX(-50%) translateY(-120px) !important;
    z-index: 99999 !important;
    max-width: 520px;
    width: auto;
    min-width: 320px;
    padding: 0 !important;
    border-radius: var(--notif-radius-lg) !important;
    box-shadow: var(--notif-shadow) !important;
    opacity: 0;
    visibility: hidden;
    transition: transform var(--notif-transition), opacity 0.4s ease, visibility 0s 0.4s;
    margin: 0 !important;
    overflow: hidden;
    backdrop-filter: var(--notif-backdrop);
    -webkit-backdrop-filter: var(--notif-backdrop);
    border: none !important;
    font-weight: 500;
    font-size: 15px;
    line-height: 1.5;
}

body > .notification-toast.show,
body > .alert.notification-toast.show {
    transform: translateX(-50%) translateY(0) !important;
    opacity: 1 !important;
    visibility: visible !important;
    transition: transform var(--notif-transition), opacity 0.4s ease, visibility 0s;
}

body > .notification-toast.hide,
body > .alert.notification-toast.hide {
    transform: translateX(-50%) translateY(-120px) scale(0.95) !important;
    opacity: 0 !important;
    visibility: hidden !important;
    transition: transform 0.3s ease, opacity 0.3s ease, visibility 0s 0.3s;
}

body > .notification-toast .notification-content,
body > .alert.notification-toast .notification-content,
.stats-notification .notification-content {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: var(--notif-padding);
    position: relative;
}

body > .notification-toast .notification-content::before,
body > .alert.notification-toast .notification-content::before,
.stats-notification .notification-content::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: currentColor;
    opacity: 0.6;
    border-radius: var(--notif-radius-lg) 0 0 var(--notif-radius-lg);
}

body > .notification-toast .notification-content i,
body > .alert.notification-toast .notification-content i,
.stats-notification .notification-content i {
    font-size: 1.25rem;
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.25);
    padding: 4px;
}

body > .notification-toast .notification-content span,
body > .alert.notification-toast .notification-content span,
.stats-notification .notification-content span {
    flex: 1;
    font-weight: 500;
    letter-spacing: 0.01em;
    word-break: break-word;
}

/* notification-toast colors */
.alert.notification-toast.alert-success {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.95) 0%, rgba(22, 163, 74, 0.95) 100%) !important;
    color: #ffffff !important;
}

.alert.notification-toast.alert-danger,
.alert.notification-toast.alert-error {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.95) 0%, rgba(220, 38, 38, 0.95) 100%) !important;
    color: #ffffff !important;
}

.alert.notification-toast.alert-warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.95) 0%, rgba(234, 179, 8, 0.95) 100%) !important;
    color: #ffffff !important;
}

.alert.notification-toast.alert-info {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.95) 0%, rgba(37, 99, 235, 0.95) 100%) !important;
    color: #ffffff !important;
}

@keyframes notifPulseShadow {
    0%, 100% { box-shadow: var(--notif-shadow); }
    50% { box-shadow: var(--notif-shadow-hover); }
}

body > .notification-toast.show,
body > .alert.notification-toast.show {
    animation: notifPulseShadow 2s ease-in-out 0.3s;
}

/* === STATS NOTIFICATION (справа) === */
body > .stats-notification,
body > .alert.stats-notification {
    top: 24px !important;
    left: auto !important;
    right: 24px !important;
    transform: translateX(120px) translateY(0) !important;
    max-width: 380px;
    min-width: 280px;
    padding: 0 !important;
    border-radius: var(--notif-radius) !important;
    box-shadow: var(--notif-shadow-hover) !important;
    background: linear-gradient(135deg, rgba(100, 116, 139, 0.98) 0%, rgba(71, 85, 105, 0.98) 100%) !important;
    color: #ffffff !important;
    backdrop-filter: var(--notif-backdrop);
    -webkit-backdrop-filter: var(--notif-backdrop);
    border: 1px solid rgba(255, 255, 255, 0.15) !important;
    font-size: 14px;
    font-weight: 500;
    opacity: 0;
    visibility: hidden;
    transition: transform var(--notif-transition), opacity 0.3s ease, visibility 0s 0.3s;
}

body > .stats-notification.show,
body > .alert.stats-notification.show {
    transform: translateX(0) translateY(0) !important;
    opacity: 1 !important;
    visibility: visible !important;
    animation: statsNotificationSlide 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

body > .stats-notification.hide,
body > .alert.stats-notification.hide {
    transform: translateX(120px) translateY(0) scale(0.95) !important;
    opacity: 0 !important;
    visibility: hidden !important;
}

.stats-notification .notification-content {
    padding: 12px 16px;
    gap: 10px;
}

.stats-notification .notification-content i {
    font-size: 1.1rem;
    width: 22px;
    height: 22px;
    background: rgba(255, 255, 255, 0.2);
}

.stats-notification .notification-content::before {
    width: 3px;
    background: rgba(255, 255, 255, 0.5);
}

.stats-notification.alert-success {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.98) 0%, rgba(22, 163, 74, 0.98) 100%) !important;
    border-color: rgba(34, 197, 94, 0.4) !important;
}

.stats-notification.alert-error,
.stats-notification.alert-danger {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.98) 0%, rgba(220, 38, 38, 0.98) 100%) !important;
    border-color: rgba(239, 68, 68, 0.4) !important;
}

.stats-notification.alert-warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.98) 0%, rgba(234, 179, 8, 0.98) 100%) !important;
    border-color: rgba(245, 158, 11, 0.4) !important;
}

.stats-notification.alert-info {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.98) 0%, rgba(37, 99, 235, 0.98) 100%) !important;
    border-color: rgba(59, 130, 246, 0.4) !important;
}

@keyframes statsNotificationSlide {
    0% {
        transform: translateX(120px) translateY(0);
        opacity: 0;
    }
    60% {
        transform: translateX(-5px) translateY(0);
    }
    100% {
        transform: translateX(0) translateY(0);
        opacity: 1;
    }
}

/* === STUDENT NOTIFICATION (справа) === */
@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

.student-notification {
    position: fixed !important;
    top: 20px !important;
    right: 20px !important;
    left: auto !important;
    bottom: auto !important;
    z-index: 10000 !important;
    min-width: 300px;
    max-width: 500px;
    box-shadow: var(--notif-shadow);
    animation: slideInRight 0.35s ease-out;
    opacity: 0;
    border-radius: var(--notif-radius);
    padding: var(--notif-padding) !important;
    padding-right: 48px !important;
    transition: top 0.3s ease-out, opacity 0.3s ease-out, transform 0.3s ease-in;
    margin: 0 !important;
    display: block !important;
    border: 1px solid transparent !important;
    backdrop-filter: var(--notif-backdrop);
    -webkit-backdrop-filter: var(--notif-backdrop);
}

.student-notification.show {
    opacity: 1;
}

.student-notification.hide {
    opacity: 0;
    transform: translateX(100%);
}

.student-notification.alert-success {
    border-left: 4px solid #22c55e !important;
    background-color: #dcfce7 !important;
    color: #166534 !important;
}

.student-notification.alert-danger {
    border-left: 4px solid #ef4444 !important;
    background-color: #fee2e2 !important;
    color: #991b1b !important;
}

.student-notification.alert-info {
    border-left: 4px solid #3b82f6 !important;
    background-color: #dbeafe !important;
    color: #1e40af !important;
}

.student-notification-content {
    display: flex;
    align-items: flex-start;
    gap: var(--notif-gap);
}

.student-notification-icon {
    margin-top: 2px;
    flex-shrink: 0;
}

.student-notification-message {
    flex: 1;
    padding-right: 8px;
}

.student-notification .btn-close {
    position: absolute;
    top: 50%;
    right: 8px;
    transform: translateY(-50%);
    opacity: 0.6;
    transition: opacity 0.2s, background-color 0.2s;
    padding: 10px;
    min-width: var(--notif-close-min);
    min-height: var(--notif-close-min);
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
    color: inherit;
    z-index: 1;
}

.student-notification .btn-close:hover {
    opacity: 1;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 50%;
}

.student-notification .btn-close:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 2px;
}

/* === LEGACY NOTIFICATION (slide from right) === */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 20px;
    border-radius: 8px;
    color: white;
    font-weight: 500;
    z-index: 10000;
    max-width: 400px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    opacity: 0;
    transform: translateX(100%);
    transition: opacity 0.3s ease-out, transform 0.3s ease-out;
}

.notification-show {
    opacity: 1;
    transform: translateX(0);
    animation: slideIn 0.3s ease-out;
}

.notification-hide {
    animation: slideOut 0.3s ease-in;
}

.notification-warning {
    background: #ff9800;
}

.notification-error {
    background: #f44336;
}

.notification-info {
    background: #2196f3;
}

/* === SCHEDULE MODULE (из schedule.css) === */
.time-status {
  display: none;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 10px 14px;
  border-radius: 8px;
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

.time-status.success {
  color: #065f46;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(5, 150, 105, 0.1));
  border-color: rgba(16, 185, 129, 0.3);
}

.time-status.error {
  color: #991b1b;
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(220, 38, 38, 0.1));
  border-color: rgba(239, 68, 68, 0.3);
}

.time-status.warning {
  color: #92400e;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(217, 119, 6, 0.1));
  border-color: rgba(245, 158, 11, 0.3);
}

.time-status.loading {
  color: #374151;
  background: linear-gradient(135deg, rgba(107, 114, 128, 0.1), rgba(75, 85, 99, 0.1));
  border-color: rgba(107, 114, 128, 0.3);
}

.conflict-block {
  margin-top: 20px;
  padding: 20px;
  border: 2px solid #f59e0b;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(217, 119, 6, 0.05));
  animation: fadeInDown 0.4s ease-out;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.15);
}

.conflict-header {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: #92400e;
  margin-bottom: 16px;
  font-size: 1rem;
}

.conflict-header i {
  font-size: 1.1rem;
  animation: pulse 2s infinite;
}

.conflict-list {
  margin-bottom: 16px;
}

.conflict-item {
  padding: 12px 16px;
  margin-bottom: 10px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 8px;
  border-left: 4px solid #f59e0b;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
  transition: all 0.2s ease;
}

.conflict-item:hover {
  transform: translateX(4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.conflict-item strong {
  color: #1f2937;
  display: block;
  margin-bottom: 6px;
  font-size: 1rem;
  font-weight: 600;
}

.conflict-time {
  font-size: 0.9rem;
  color: #6b7280;
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}

.conflict-time::before {
  content: "🕐";
  font-size: 0.8rem;
}

.conflict-actions {
  border-top: 1px solid rgba(245, 158, 11, 0.2);
  padding-top: 16px;
}

.conflict-note {
  color: #6b7280;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 8px;
  line-height: 1.4;
}

.conflict-note i {
  color: #3b82f6;
  font-size: 0.9rem;
}