/**
 * ============================================================================
 * CALENDAR REMINDER MODAL - STYLES
 * ============================================================================
 * 
 * FAANG-quality styling for persistent calendar reminder notifications.
 * Follows xDocket design system with CSS custom properties.
 * 
 * @version 1.0.0
 */

/* ============================================================================
   CSS CUSTOM PROPERTIES
   ============================================================================ */

.calendar-reminder-modal {
    --reminder-accent-color: #6366f1;
    --reminder-bg: #ffffff;
    --reminder-text: #1f2937;
    --reminder-text-muted: #6b7280;
    --reminder-border: #e5e7eb;
    --reminder-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --reminder-backdrop: rgba(0, 0, 0, 0.4);
    --reminder-radius: 16px;
    --reminder-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .calendar-reminder-modal {
        --reminder-bg: #1f2937;
        --reminder-text: #f9fafb;
        --reminder-text-muted: #9ca3af;
        --reminder-border: #374151;
        --reminder-backdrop: rgba(0, 0, 0, 0.6);
    }
}

/* ============================================================================
   MODAL CONTAINER & BACKDROP
   ============================================================================ */

.calendar-reminder-modal {
    position: fixed;
    inset: 0;
    z-index: 10500; /* Above Bootstrap modals (1055) */
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 80px;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--reminder-transition), visibility var(--reminder-transition);
}

    .calendar-reminder-modal.visible {
        pointer-events: auto;
        opacity: 1;
        visibility: visible;
    }

.calendar-reminder-backdrop {
    position: absolute;
    inset: 0;
    background: var(--reminder-backdrop);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity var(--reminder-transition);
}

.calendar-reminder-modal.visible .calendar-reminder-backdrop {
    opacity: 1;
}

.calendar-reminder-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    padding: 0 16px;
    transform: translateY(-20px) scale(0.95);
    transition: transform var(--reminder-transition);
}

.calendar-reminder-modal.visible .calendar-reminder-container {
    transform: translateY(0) scale(1);
}

/* ============================================================================
   CARD STRUCTURE
   ============================================================================ */

.calendar-reminder-card {
    position: relative;
    background: var(--reminder-bg);
    border-radius: var(--reminder-radius);
    box-shadow: var(--reminder-shadow);
    overflow: hidden;
    border-left: 4px solid var(--reminder-accent-color);
}

/* ============================================================================
   HEADER
   ============================================================================ */

.calendar-reminder-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 24px 0;
}

.calendar-reminder-icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.calendar-reminder-icon {
    font-size: 24px;
    color: var(--reminder-accent-color);
}

.calendar-reminder-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--reminder-accent-color);
    text-transform: uppercase;
}

.calendar-reminder-pagination {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
    font-size: 12px;
    color: var(--reminder-text-muted);
    background: var(--reminder-border);
    padding: 4px 10px;
    border-radius: 20px;
}

.pagination-current {
    font-weight: 600;
    color: var(--reminder-text);
}

/* ============================================================================
   CONTENT
   ============================================================================ */

.calendar-reminder-content {
    padding: 16px 24px 20px;
}

.calendar-reminder-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--reminder-text);
    margin: 0 0 16px;
    line-height: 1.3;
    word-break: break-word;
}

.calendar-reminder-meta {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.calendar-reminder-meta-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--reminder-text-muted);
}

    .calendar-reminder-meta-item i {
        font-size: 18px;
        width: 20px;
        text-align: center;
        flex-shrink: 0;
    }

/* Countdown states */
.calendar-reminder-countdown {
    font-weight: 500;
    color: var(--reminder-text);
}

    .calendar-reminder-countdown .countdown-time {
        color: var(--reminder-text-muted);
        font-weight: 400;
    }

    .calendar-reminder-countdown.urgent {
        color: #f59e0b;
    }

        .calendar-reminder-countdown.urgent i {
            animation: pulse 1s ease-in-out infinite;
        }

    .calendar-reminder-countdown.overdue {
        color: #ef4444;
    }

        .calendar-reminder-countdown.overdue i {
            color: #ef4444;
        }

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

    50% {
        opacity: 0.5;
    }
}

/* ============================================================================
   PRIMARY ACTION BUTTON
   ============================================================================ */

.calendar-reminder-primary-action {
    padding: 0 24px 16px;
}

.btn-reminder-primary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 14px 24px;
    background: var(--reminder-accent-color);
    color: #ffffff;
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

    .btn-reminder-primary:hover {
        filter: brightness(1.1);
        transform: translateY(-1px);
    }

    .btn-reminder-primary:active {
        transform: translateY(0);
    }

    .btn-reminder-primary:focus-visible {
        outline: 2px solid var(--reminder-accent-color);
        outline-offset: 2px;
    }

    .btn-reminder-primary i {
        font-size: 18px;
    }

/* ============================================================================
   SECONDARY ACTIONS
   ============================================================================ */

.calendar-reminder-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: rgba(0, 0, 0, 0.02);
    border-top: 1px solid var(--reminder-border);
}

.calendar-reminder-snooze {
    position: relative;
}

.btn-reminder-snooze,
.btn-reminder-dismiss {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid var(--reminder-border);
    border-radius: 8px;
    background: var(--reminder-bg);
    color: var(--reminder-text);
    cursor: pointer;
    transition: all 0.2s ease;
}

    .btn-reminder-snooze:hover,
    .btn-reminder-dismiss:hover {
        background: var(--reminder-border);
    }

    .btn-reminder-snooze i,
    .btn-reminder-dismiss i {
        font-size: 16px;
    }

.snooze-caret {
    margin-left: 2px;
    transition: transform 0.2s ease;
}

/* Snooze Dropdown */
.snooze-dropdown {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 0;
    display: flex;
    flex-direction: column;
    min-width: 140px;
    background: var(--reminder-bg);
    border: 1px solid var(--reminder-border);
    border-radius: 10px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    z-index: 10;
}

.snooze-option {
    padding: 10px 16px;
    font-size: 14px;
    color: var(--reminder-text);
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    transition: background 0.15s ease;
}

    .snooze-option:hover {
        background: var(--reminder-border);
    }

    .snooze-option:not(:last-child) {
        border-bottom: 1px solid var(--reminder-border);
    }

/* ============================================================================
   NAVIGATION ARROWS
   ============================================================================ */

.calendar-reminder-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--reminder-bg);
    border: 1px solid var(--reminder-border);
    border-radius: 50%;
    color: var(--reminder-text);
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

    .calendar-reminder-nav:hover {
        background: var(--reminder-border);
    }

    .calendar-reminder-nav.nav-prev {
        left: -18px;
    }

    .calendar-reminder-nav.nav-next {
        right: -18px;
    }

    .calendar-reminder-nav i {
        font-size: 18px;
    }

/* ============================================================================
   PAGINATION DOTS
   ============================================================================ */

.calendar-reminder-dots {
    display: flex;
    justify-content: center;
    gap: 6px;
    padding: 12px 24px 16px;
}

.reminder-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--reminder-border);
    transition: all 0.2s ease;
}

    .reminder-dot.active {
        background: var(--reminder-accent-color);
        width: 20px;
        border-radius: 4px;
    }

/* ============================================================================
   RESPONSIVE ADJUSTMENTS
   ============================================================================ */

@media (max-width: 480px) {
    .calendar-reminder-modal {
        padding-top: 60px;
    }

    .calendar-reminder-container {
        max-width: 100%;
        padding: 0 12px;
    }

    .calendar-reminder-card {
        border-radius: 12px;
    }

    .calendar-reminder-header {
        padding: 16px 16px 0;
    }

    .calendar-reminder-icon-wrapper {
        width: 40px;
        height: 40px;
    }

    .calendar-reminder-icon {
        font-size: 20px;
    }

    .calendar-reminder-content {
        padding: 12px 16px 16px;
    }

    .calendar-reminder-title {
        font-size: 18px;
    }

    .calendar-reminder-primary-action {
        padding: 0 16px 12px;
    }

    .calendar-reminder-actions {
        padding: 12px 16px;
        flex-wrap: wrap;
        gap: 10px;
    }

    .btn-reminder-snooze,
    .btn-reminder-dismiss {
        flex: 1;
        justify-content: center;
    }

    .calendar-reminder-nav {
        display: none; /* Hide arrows on mobile, use swipe */
    }

    .snooze-dropdown {
        left: 50%;
        transform: translateX(-50%);
    }
}

/* ============================================================================
   PRINT STYLES
   ============================================================================ */

@media print {
    .calendar-reminder-modal {
        display: none !important;
    }
}

/* ============================================================================
   REDUCED MOTION
   ============================================================================ */

@media (prefers-reduced-motion: reduce) {
    .calendar-reminder-modal,
    .calendar-reminder-backdrop,
    .calendar-reminder-container,
    .btn-reminder-primary,
    .btn-reminder-snooze,
    .btn-reminder-dismiss,
    .calendar-reminder-nav,
    .reminder-dot,
    .snooze-caret {
        transition: none;
    }

    .calendar-reminder-countdown.urgent i {
        animation: none;
    }
}