/* ============================================
   CHAT SYSTEM STYLES
   Fullscreen slide-in panel for real-time chat
   ============================================ */

/* --- Panel Root (clipping container) --- */
#chat-panel-root {
    position: fixed;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 100000;
}

/* --- Fullscreen Panel --- */
#chat-fullscreen {
    position: fixed;
    inset: 0;
    z-index: 100001;
    background: #f9fafb;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    visibility: hidden;
}

#chat-fullscreen.chat-open {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
}

/* Safe area for PWA standalone */
@media all and (display-mode: standalone) {
    #chat-fullscreen {
        padding-top: env(safe-area-inset-top, 0);
    }
    .chat-input-area {
        padding-bottom: env(safe-area-inset-bottom, 0) !important;
    }
}

/* Capacitor: safe-area bottom padding for chat input */
html.plt-capacitor .chat-input-area,
html.plt-ios .chat-input-area {
    padding-bottom: env(safe-area-inset-bottom, 0);
}

/* Capacitor: shrink chat panel when keyboard is open so input stays visible */
html.plt-capacitor body.keyboard-visible #chat-fullscreen {
    height: calc(100vh - var(--keyboard-height, 0px));
}

@supports (-webkit-touch-callout: none) {
    body.standalone-mode #chat-fullscreen {
        padding-top: env(safe-area-inset-top, 0);
    }
}

/* --- Chat Header --- */
.chat-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: white;
    border-bottom: 1px solid #e5e7eb;
    flex-shrink: 0;
    min-height: 3rem;
}

.chat-header-title {
    flex: 1;
    font-size: 1rem;
    font-weight: 600;
    color: #111827;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-header-subtitle {
    font-size: 0.75rem;
    color: #6b7280;
    font-weight: 400;
}

.chat-header-avatar {
    width: 2rem;
    height: 2rem;
    border-radius: 9999px;
    object-fit: cover;
    flex-shrink: 0;
}

.chat-header-avatar-placeholder {
    width: 2rem;
    height: 2rem;
    border-radius: 9999px;
    background: #6366f1;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.75rem;
    flex-shrink: 0;
}

.chat-header-avatar-group {
    width: 2rem;
    height: 2rem;
    border-radius: 9999px;
    background: #e0e7ff;
    color: #4f46e5;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.chat-header-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 9999px;
    color: #4b5563;
    background: transparent;
    border: none;
    cursor: pointer;
    transition:
        background-color 0.15s,
        color 0.15s;
    flex-shrink: 0;
}

.chat-header-btn:hover {
    background: #f3f4f6;
    color: #111827;
}

/* --- Search Bar --- */
.chat-search-bar {
    padding: 0.5rem 1rem;
    background: white;
    border-bottom: 1px solid #e5e7eb;
    flex-shrink: 0;
}

.chat-search-input {
    width: 100%;
    padding: 0.5rem 0.75rem 0.5rem 2.25rem;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    background: #f9fafb;
    outline: none;
    transition: border-color 0.15s;
}

.chat-search-input:focus {
    border-color: #6366f1;
    background: white;
}

.chat-search-wrapper {
    position: relative;
}

.chat-search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: #9ca3af;
    font-size: 0.875rem;
    pointer-events: none;
}

/* --- Conversation List --- */
.chat-conversation-list {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.chat-conversation-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: white;
    border-bottom: 1px solid #f3f4f6;
    cursor: pointer;
    transition: background-color 0.15s;
}

.chat-conversation-item:hover {
    background: #f9fafb;
}

.chat-conversation-item:active {
    background: #f3f4f6;
}

.chat-conversation-item.has-unread {
    background: #eef2ff;
}

.chat-conversation-item.has-unread:hover {
    background: #e0e7ff;
}

/* --- Avatar --- */
.chat-avatar {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 9999px;
    object-fit: cover;
    flex-shrink: 0;
    background: #e5e7eb;
}

.chat-avatar-placeholder {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 9999px;
    background: #6366f1;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1rem;
    flex-shrink: 0;
}

.chat-avatar-group {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 9999px;
    background: #e0e7ff;
    color: #4f46e5;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    flex-shrink: 0;
}

/* Small avatar for message bubbles */
.chat-avatar-sm {
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 9999px;
    object-fit: cover;
    flex-shrink: 0;
    background: #e5e7eb;
}

.chat-avatar-sm-placeholder {
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 9999px;
    background: #6366f1;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.625rem;
    flex-shrink: 0;
}

/* --- Conversation Item Content --- */
.chat-conv-content {
    flex: 1;
    min-width: 0;
}

.chat-conv-name {
    font-size: 0.9375rem;
    font-weight: 600;
    color: #111827;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-conv-preview {
    font-size: 0.8125rem;
    color: #6b7280;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 0.125rem;
}

.chat-conv-preview.unread {
    color: #111827;
    font-weight: 500;
}

/* --- Conversation Item Meta --- */
.chat-conv-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.25rem;
    flex-shrink: 0;
}

.chat-conv-time {
    font-size: 0.6875rem;
    color: #9ca3af;
    white-space: nowrap;
}

.chat-conv-time.unread {
    color: #4f46e5;
    font-weight: 600;
}

.chat-unread-count {
    background: #4f46e5;
    color: white;
    font-size: 0.6875rem;
    font-weight: 700;
    border-radius: 9999px;
    min-width: 1.25rem;
    height: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 0.375rem;
}

/* --- Messages Area --- */
.chat-messages-area {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 0.75rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

/* --- Date Separator --- */
.chat-date-separator {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 0;
}

.chat-date-separator span {
    font-size: 0.6875rem;
    color: #9ca3af;
    background: #f3f4f6;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-weight: 500;
}

/* --- Message Bubble --- */
.chat-message-row {
    display: flex;
    gap: 0.5rem;
    max-width: 85%;
    align-items: flex-end;
}

.chat-message-row.own {
    margin-left: auto;
    flex-direction: row-reverse;
}

.chat-message-row.other {
    margin-right: auto;
}

.chat-bubble {
    padding: 0.5rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.9375rem;
    line-height: 1.4;
    word-break: break-word;
    position: relative;
}

.chat-bubble-own {
    background: #4f46e5;
    color: white;
    border-bottom-right-radius: 0.25rem;
}

.chat-bubble-other {
    background: white;
    color: #1f2937;
    border-bottom-left-radius: 0.25rem;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.chat-bubble-sender {
    font-size: 0.6875rem;
    font-weight: 600;
    color: #4f46e5;
    margin-bottom: 0.125rem;
}

.chat-bubble-time {
    font-size: 0.625rem;
    margin-top: 0.25rem;
    opacity: 0.7;
    text-align: right;
}

.chat-bubble-own .chat-bubble-time {
    color: rgba(255, 255, 255, 0.7);
}

.chat-bubble-other .chat-bubble-time {
    color: #9ca3af;
}

.chat-bubble-edited {
    font-style: italic;
    font-size: 0.5625rem;
    opacity: 0.6;
}

/* --- Input Area --- */
.chat-input-area {
    display: flex;
    align-items: flex-end;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    background: white;
    border-top: 1px solid #e5e7eb;
    flex-shrink: 0;
}

.chat-message-input {
    flex: 1;
    border: 1px solid #d1d5db;
    border-radius: 1.25rem;
    padding: 0.5rem 1rem;
    font-size: 0.9375rem;
    max-height: 7.5rem;
    overflow-y: auto;
    resize: none;
    outline: none;
    line-height: 1.4;
    font-family: inherit;
    transition: border-color 0.15s;
}

.chat-message-input:focus {
    border-color: #6366f1;
}

.chat-message-input::placeholder {
    color: #9ca3af;
}

.chat-send-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 9999px;
    background: #4f46e5;
    color: white;
    border: none;
    cursor: pointer;
    transition:
        background-color 0.15s,
        transform 0.1s;
    flex-shrink: 0;
}

.chat-send-btn:hover {
    background: #4338ca;
}

.chat-send-btn:active {
    transform: scale(0.95);
}

.chat-send-btn:disabled {
    background: #d1d5db;
    cursor: not-allowed;
}

/* Character counter */
.chat-char-counter {
    font-size: 0.625rem;
    color: #9ca3af;
    text-align: right;
    padding: 0 1rem 0.25rem;
    background: white;
}

.chat-char-counter.warning {
    color: #f59e0b;
}

.chat-char-counter.danger {
    color: #ef4444;
}

/* --- Empty State --- */
.chat-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 2rem;
    text-align: center;
    flex: 1;
}

.chat-empty-icon {
    font-size: 3rem;
    color: #d1d5db;
    margin-bottom: 1rem;
}

.chat-empty-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.5rem;
}

.chat-empty-text {
    font-size: 0.875rem;
    color: #9ca3af;
}

/* --- Event Card in Chat --- */
.chat-event-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: linear-gradient(135deg, #1e3a5f 0%, #2d4a6f 100%);
    cursor: pointer;
    flex-shrink: 0;
    transition: background 0.2s;
}

.chat-event-card:hover {
    background: linear-gradient(135deg, #2d4a6f 0%, #3d5a7f 100%);
}

.chat-event-card-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    flex-shrink: 0;
}

.chat-event-card-month {
    font-size: 0.625rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    line-height: 1;
}

.chat-event-card-day {
    font-size: 1.125rem;
    font-weight: 800;
    color: white;
    line-height: 1.2;
}

.chat-event-card-info {
    flex: 1;
    min-width: 0;
}

.chat-event-card-title {
    font-size: 0.875rem;
    font-weight: 700;
    color: white;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-event-card-time {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 2px;
}

.chat-event-card-arrow {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.75rem;
    flex-shrink: 0;
}

/* --- Guardian Read-Only Banner --- */
.chat-guardian-banner {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: #fef3c7;
    border-bottom: 1px solid #fde68a;
    color: #92400e;
    font-size: 0.8125rem;
    font-weight: 500;
    flex-shrink: 0;
}

.chat-guardian-banner i {
    color: #d97706;
}

/* --- Guardian Child Selector --- */
.chat-guardian-child-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: white;
    border-bottom: 1px solid #f3f4f6;
    cursor: pointer;
    transition: background-color 0.15s;
}

.chat-guardian-child-item:hover {
    background: #f9fafb;
}

/* --- New Chat View --- */
.chat-tabs {
    display: flex;
    background: white;
    border-bottom: 1px solid #e5e7eb;
    flex-shrink: 0;
}

.chat-tab {
    flex: 1;
    padding: 0.625rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: #6b7280;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition:
        color 0.15s,
        border-color 0.15s;
}

.chat-tab.active {
    color: #4f46e5;
    border-bottom-color: #4f46e5;
}

.chat-tab:hover:not(.active) {
    color: #374151;
}

/* Friend/Member selection item */
.chat-contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 1rem;
    cursor: pointer;
    transition: background-color 0.15s;
}

.chat-contact-item:hover {
    background: #f9fafb;
}

.chat-contact-item.selected {
    background: #eef2ff;
}

.chat-contact-check {
    width: 1.25rem;
    height: 1.25rem;
    border-radius: 9999px;
    border: 2px solid #d1d5db;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition:
        background-color 0.15s,
        border-color 0.15s;
}

.chat-contact-item.selected .chat-contact-check {
    background: #4f46e5;
    border-color: #4f46e5;
    color: white;
}

/* Group creation form */
.chat-group-form {
    padding: 1rem;
    background: white;
    border-bottom: 1px solid #e5e7eb;
}

.chat-group-input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    outline: none;
    transition: border-color 0.15s;
}

.chat-group-input:focus {
    border-color: #6366f1;
}

.chat-create-group-btn {
    width: 100%;
    padding: 0.625rem;
    margin-top: 0.75rem;
    background: #4f46e5;
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: background-color 0.15s;
}

.chat-create-group-btn:hover {
    background: #4338ca;
}

.chat-create-group-btn:disabled {
    background: #d1d5db;
    cursor: not-allowed;
}

/* Selected members chips */
.chat-selected-members {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    padding: 0.5rem 1rem;
    background: white;
    border-bottom: 1px solid #e5e7eb;
    min-height: 2.5rem;
}

.chat-member-chip {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.5rem;
    background: #eef2ff;
    color: #4f46e5;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.chat-member-chip-remove {
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.15s;
    background: none;
    border: none;
    color: inherit;
    padding: 0;
    font-size: 0.75rem;
}

.chat-member-chip-remove:hover {
    opacity: 1;
}

/* --- Loading States --- */
.chat-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: #9ca3af;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.chat-loading-top {
    padding: 0.75rem;
    text-align: center;
    color: #9ca3af;
    font-size: 0.75rem;
}

.chat-spinner {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid #e5e7eb;
    border-top-color: #6366f1;
    border-radius: 9999px;
    animation: chat-spin 0.6s linear infinite;
}

@keyframes chat-spin {
    to {
        transform: rotate(360deg);
    }
}

/* --- New Messages Indicator --- */
.chat-new-msg-indicator {
    position: absolute;
    bottom: 4.5rem;
    left: 50%;
    transform: translateX(-50%);
    background: #4f46e5;
    color: white;
    padding: 0.375rem 1rem;
    border-radius: 9999px;
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.3);
    z-index: 10;
    transition:
        opacity 0.2s,
        transform 0.2s;
    display: none;
}

.chat-new-msg-indicator.visible {
    display: block;
}

/* --- Toast Messages --- */
.chat-toast {
    position: fixed;
    bottom: 5rem;
    left: 50%;
    transform: translateX(-50%);
    background: #1f2937;
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: 0.5rem;
    font-size: 0.8125rem;
    z-index: 100002;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.chat-toast.visible {
    opacity: 1;
}

/* ============================================
   iOS MESSAGES-STYLE OVERRIDES
   Scoped under .plt-ios to keep Android/web intact
   ============================================ */

/* iOS chat background */
html.plt-ios #chat-fullscreen {
    background: #fff;
}

/* iOS chat header: frosted glass like iMessage */
html.plt-ios .chat-header {
    background: rgba(249, 249, 249, 0.94);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: none;
    box-shadow: 0 0.5px 0 rgba(60, 60, 67, 0.12);
}

html.plt-ios .chat-header-title {
    font-family: -apple-system, 'SF Pro Display', system-ui, sans-serif;
    font-weight: 600;
    font-size: 17px;
    letter-spacing: -0.01em;
}

html.plt-ios .chat-header-btn {
    color: #007aff;
}

html.plt-ios .chat-header-btn:hover {
    color: #0056cc;
    background: transparent;
}

/* iOS messages area */
html.plt-ios .chat-messages-area {
    background: #fff;
    padding: 0.5rem 0.75rem;
    gap: 2px;
}

/* iOS sent bubble: blue like iMessage */
html.plt-ios .chat-bubble-own {
    background: #007aff;
    color: white;
    border-radius: 18px;
    border-bottom-right-radius: 4px;
    box-shadow: none;
}

/* iOS received bubble: light gray like iMessage */
html.plt-ios .chat-bubble-other {
    background: #e9e9eb;
    color: #1c1c1e;
    border-radius: 18px;
    border-bottom-left-radius: 4px;
    box-shadow: none;
}

/* iOS bubble text */
html.plt-ios .chat-bubble {
    font-family: -apple-system, 'SF Pro Text', system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.35;
    padding: 8px 12px;
}

/* iOS bubble sender name */
html.plt-ios .chat-bubble-sender {
    color: #007aff;
    font-size: 12px;
}

/* iOS bubble time */
html.plt-ios .chat-bubble-own .chat-bubble-time {
    color: rgba(255, 255, 255, 0.65);
}

html.plt-ios .chat-bubble-other .chat-bubble-time {
    color: #8e8e93;
}

/* iOS date separator: small centered pill */
html.plt-ios .chat-date-separator span {
    font-family: -apple-system, 'SF Pro Text', system-ui, sans-serif;
    font-size: 12px;
    color: #8e8e93;
    background: rgba(60, 60, 67, 0.06);
    padding: 3px 10px;
    border-radius: 10px;
    font-weight: 500;
}

/* iOS input area: frosted glass with pill input */
html.plt-ios .chat-input-area {
    background: rgba(249, 249, 249, 0.94);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    backdrop-filter: blur(20px) saturate(180%);
    border-top: none;
    box-shadow: 0 -0.5px 0 rgba(60, 60, 67, 0.12);
    padding: 8px 12px;
    gap: 8px;
}

/* iOS pill-shaped message input */
html.plt-ios .chat-message-input {
    border: 1px solid rgba(60, 60, 67, 0.18);
    border-radius: 20px;
    padding: 8px 14px;
    font-family: -apple-system, 'SF Pro Text', system-ui, sans-serif;
    font-size: 16px;
    background: #fff;
}

html.plt-ios .chat-message-input:focus {
    border-color: rgba(60, 60, 67, 0.29);
}

html.plt-ios .chat-message-input::placeholder {
    color: #8e8e93;
}

/* iOS send button: SF-style blue arrow */
html.plt-ios .chat-send-btn {
    background: #007aff;
    width: 34px;
    height: 34px;
    border-radius: 17px;
}

html.plt-ios .chat-send-btn:hover {
    background: #0056cc;
}

html.plt-ios .chat-send-btn:disabled {
    background: #c7c7cc;
}

/* iOS unread badge color */
html.plt-ios .chat-unread-count {
    background: #007aff;
}

html.plt-ios .chat-conv-time.unread {
    color: #007aff;
}

/* iOS conversation list styling */
html.plt-ios .chat-conversation-item {
    border-bottom-color: rgba(60, 60, 67, 0.12);
}

html.plt-ios .chat-conversation-item.has-unread {
    background: #fff;
}

html.plt-ios .chat-conversation-item.has-unread:hover {
    background: #f9f9f9;
}

/* iOS search bar */
html.plt-ios .chat-search-input {
    border: none;
    background: rgba(118, 118, 128, 0.12);
    border-radius: 10px;
    font-family: -apple-system, 'SF Pro Text', system-ui, sans-serif;
}

html.plt-ios .chat-search-input:focus {
    background: rgba(118, 118, 128, 0.12);
    border: none;
}

/* iOS new message indicator */
html.plt-ios .chat-new-msg-indicator {
    background: #007aff;
    box-shadow: 0 2px 8px rgba(0, 122, 255, 0.3);
}

/* iOS tab styling for new chat view */
html.plt-ios .chat-tab.active {
    color: #007aff;
    border-bottom-color: #007aff;
}

html.plt-ios .chat-contact-item.selected .chat-contact-check {
    background: #007aff;
    border-color: #007aff;
}

html.plt-ios .chat-create-group-btn {
    background: #007aff;
    border-radius: 12px;
}

html.plt-ios .chat-create-group-btn:hover {
    background: #0056cc;
}