/**
 * Driver Connect - iOS-style CSS
 * Privacy-focused driver communication UI
 */

/* Design Tokens */
:root {
    --dc-blue: #007AFF;
    --dc-blue-dark: #0056CC;
    --dc-green: #34C759;
    --dc-red: #FF3B30;
    --dc-orange: #FF9500;
    --dc-gray-1: #8E8E93;
    --dc-gray-2: #AEAEB2;
    --dc-gray-3: #C7C7CC;
    --dc-gray-4: #D1D1D6;
    --dc-gray-5: #E5E5EA;
    --dc-gray-6: #F2F2F7;
    --dc-bg-primary: #FFFFFF;
    --dc-bg-secondary: #F2F2F7;
    --dc-text-primary: #000000;
    --dc-text-secondary: #3C3C43;
    --dc-text-tertiary: #3C3C4399;
    --dc-separator: rgba(60, 60, 67, 0.12);
    --dc-radius-sm: 8px;
    --dc-radius-md: 12px;
    --dc-radius-lg: 16px;
    --dc-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --dc-safe-area-top: env(safe-area-inset-top, 0);
    --dc-safe-area-bottom: env(safe-area-inset-bottom, 0);
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
    :root {
        --dc-bg-primary: #000000;
        --dc-bg-secondary: #1C1C1E;
        --dc-text-primary: #FFFFFF;
        --dc-text-secondary: #EBEBF5;
        --dc-text-tertiary: #EBEBF599;
        --dc-separator: rgba(84, 84, 88, 0.65);
        --dc-gray-6: #1C1C1E;
        --dc-gray-5: #2C2C2E;
    }
}

/* Container */
.dc-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 100%;
    background: var(--dc-bg-secondary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--dc-text-primary);
    padding-top: var(--dc-safe-area-top);
    padding-bottom: var(--dc-safe-area-bottom);
    box-sizing: border-box;
}

/* Override view padding for Driver Connect */
#driver-comm-view.view {
    padding: 0;
    width: 100%;
    max-width: 100%;
}

/* Header */
.dc-header {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    background: var(--dc-bg-primary);
    border-bottom: 1px solid var(--dc-separator);
    min-height: 44px;
}

.dc-back-btn,
.dc-settings-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--dc-blue);
    cursor: pointer;
    border-radius: var(--dc-radius-sm);
}

.dc-back-btn:hover,
.dc-settings-btn:hover {
    background: var(--dc-gray-6);
}

.dc-title {
    flex: 1;
    font-size: 17px;
    font-weight: 600;
    text-align: center;
    margin: 0;
}

/* Tabs */
.dc-tabs {
    display: flex;
    background: var(--dc-bg-primary);
    border-bottom: 1px solid var(--dc-separator);
    padding: 0 8px;
}

.dc-tab {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 4px 12px;
    background: none;
    border: none;
    color: var(--dc-gray-1);
    cursor: pointer;
    font-size: 11px;
    font-weight: 500;
    position: relative;
    transition: color 0.2s;
}

.dc-tab svg {
    width: 24px;
    height: 24px;
}

.dc-tab--active {
    color: var(--dc-blue);
}

.dc-tab--active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 20%;
    right: 20%;
    height: 2px;
    background: var(--dc-blue);
    border-radius: 1px;
}

/* Badge */
.dc-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 6px;
    font-size: 12px;
    font-weight: 600;
    background: var(--dc-red);
    color: white;
    border-radius: 9px;
}

.dc-badge--hidden {
    display: none;
}

/* Content */
.dc-content {
    flex: 1;
    overflow: hidden;
    position: relative;
    width: 100%;
}

.dc-subview {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    overflow-y: auto;
    display: none !important;
    padding: 16px;
    box-sizing: border-box;
    visibility: hidden;
}

.dc-subview--active {
    display: flex !important;
    flex-direction: column;
    visibility: visible;
}

/* Discovery View */
.dc-discovery {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.dc-location-info {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--dc-bg-primary);
    border-radius: var(--dc-radius-md);
    box-shadow: var(--dc-shadow);
}

.dc-location-name {
    font-weight: 500;
    color: var(--dc-text-primary);
}

/* Driver List */
.dc-drivers-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.dc-driver-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--dc-bg-primary);
    border-radius: var(--dc-radius-md);
    box-shadow: var(--dc-shadow);
}

.dc-driver-avatar,
.dc-contact-avatar,
.dc-conversation-avatar {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--dc-blue), var(--dc-blue-dark));
    color: white;
    font-weight: 600;
    font-size: 18px;
    border-radius: 50%;
}

.dc-driver-info,
.dc-contact-info,
.dc-conversation-info {
    flex: 1;
    min-width: 0;
}

.dc-driver-name,
.dc-contact-name,
.dc-conversation-name {
    font-weight: 500;
    font-size: 16px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dc-driver-status {
    font-size: 13px;
    color: var(--dc-text-tertiary);
    text-transform: capitalize;
}

.dc-driver-status--open {
    color: var(--dc-green);
}

.dc-driver-status--known {
    color: var(--dc-orange);
}

.dc-driver-status--closed {
    color: var(--dc-gray-1);
}

.dc-driver-actions {
    display: flex;
    gap: 8px;
}

/* Buttons */
.dc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    font-size: 16px;
    font-weight: 500;
    border: none;
    border-radius: var(--dc-radius-sm);
    cursor: pointer;
    transition: all 0.2s;
    background: var(--dc-gray-5);
    color: var(--dc-text-primary);
}

.dc-btn--small {
    padding: 8px 12px;
    font-size: 14px;
}

.dc-btn--primary {
    background: var(--dc-blue);
    color: white;
}

.dc-btn--primary:hover {
    background: var(--dc-blue-dark);
}

.dc-btn--danger {
    background: var(--dc-red);
    color: white;
}

/* Empty State */
.dc-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    color: var(--dc-gray-1);
    text-align: center;
}

.dc-empty-state svg {
    margin-bottom: 16px;
    opacity: 0.5;
}

.dc-empty-state p {
    margin: 0;
    font-size: 15px;
}

/* Conversations */
.dc-conversations-list,
.dc-contacts-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.dc-conversation-item,
.dc-contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--dc-bg-primary);
    border-radius: var(--dc-radius-md);
    box-shadow: var(--dc-shadow);
    cursor: pointer;
}

.dc-conversation-item:hover,
.dc-contact-item:hover {
    background: var(--dc-gray-6);
}

.dc-conversation-item--unread {
    background: rgba(0, 122, 255, 0.08);
}

.dc-conversation-preview,
.dc-contact-status {
    font-size: 13px;
    color: var(--dc-text-tertiary);
}

/* Invitations */
.dc-invitations {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.dc-invitation {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    background: var(--dc-bg-primary);
    border-radius: var(--dc-radius-md);
    border: 2px solid var(--dc-blue);
}

.dc-invitation-actions {
    display: flex;
    gap: 8px;
}

/* Conversations List */
.dc-conversations-list {
    display: flex;
    flex-direction: column;
    padding: 8px 0;
    overflow-y: auto;
    flex: 1;
}

.dc-conversation-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--dc-bg-primary);
    cursor: pointer;
    transition: background 0.15s ease;
    border-bottom: 1px solid var(--dc-separator);
}

.dc-conversation-item:first-child {
    border-top: 1px solid var(--dc-separator);
}

.dc-conversation-item:hover {
    background: var(--dc-gray-6);
}

.dc-conversation-item:active {
    background: var(--dc-gray-5);
}

.dc-conversation-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--dc-blue);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 18px;
    flex-shrink: 0;
}

.dc-conversation-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.dc-conversation-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 8px;
}

.dc-conversation-name {
    font-weight: 600;
    font-size: 16px;
    color: var(--dc-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dc-conversation-time {
    font-size: 13px;
    color: var(--dc-text-tertiary);
    flex-shrink: 0;
}

.dc-conversation-preview {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

.dc-conversation-last-message {
    font-size: 14px;
    color: var(--dc-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.dc-conversation-unread {
    background: var(--dc-blue);
    color: white;
    font-size: 12px;
    font-weight: 600;
    min-width: 20px;
    height: 20px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 6px;
    flex-shrink: 0;
}

.dc-conversation-item--unread .dc-conversation-name {
    font-weight: 700;
}

.dc-conversation-item--unread .dc-conversation-last-message {
    color: var(--dc-text-primary);
    font-weight: 500;
}

.dc-conversation-chevron {
    color: var(--dc-gray-3);
    flex-shrink: 0;
}

/* Chat View */
.dc-active-chat {
    display: flex;
    flex-direction: column;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--dc-bg-secondary);
    z-index: 10;
}

.dc-chat-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    background: var(--dc-bg-primary);
    border-bottom: 1px solid var(--dc-separator);
    min-height: 50px;
}

.dc-btn-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--dc-blue);
    cursor: pointer;
    border-radius: var(--dc-radius-sm);
    flex-shrink: 0;
}

.dc-btn-icon:hover {
    background: var(--dc-gray-6);
}

.dc-chat-header-info {
    flex: 1;
    min-width: 0;
}

.dc-chat-driver-name {
    font-weight: 600;
    font-size: 16px;
    color: var(--dc-text-primary);
}

.dc-chat-driver-status {
    font-size: 12px;
    color: var(--dc-green);
}

.dc-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: var(--dc-bg-secondary);
}

.dc-message {
    max-width: 80%;
    padding: 10px 14px;
    border-radius: 18px;
    font-size: 15px;
    line-height: 1.4;
    word-wrap: break-word;
}

.dc-message--sent {
    align-self: flex-end;
    background: var(--dc-blue);
    color: white;
    border-bottom-right-radius: 4px;
}

.dc-message--received {
    align-self: flex-start;
    background: var(--dc-bg-primary);
    color: var(--dc-text-primary);
    border-bottom-left-radius: 4px;
    box-shadow: var(--dc-shadow);
}

.dc-message-time {
    font-size: 11px;
    color: var(--dc-text-tertiary);
    margin-top: 4px;
    text-align: right;
}

.dc-message--sent .dc-message-time {
    color: rgba(255, 255, 255, 0.7);
}

.dc-chat-input-container {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    background: var(--dc-bg-primary);
    border-top: 1px solid var(--dc-separator);
    align-items: center;
}

.dc-chat-input {
    flex: 1;
    padding: 10px 16px;
    border: 1px solid var(--dc-gray-4);
    border-radius: 20px;
    font-size: 16px;
    background: var(--dc-bg-secondary);
    color: var(--dc-text-primary);
    outline: none;
}

.dc-chat-input:focus {
    border-color: var(--dc-blue);
}

.dc-btn--icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 50%;
    flex-shrink: 0;
}

.dc-btn--icon svg {
    width: 20px;
    height: 20px;
}

/* Messages Tab - show conversations list when no active chat */
#dc-tab-messages {
    padding: 0;
}

#dc-tab-messages.dc-subview--active {
    padding: 0;
}

#dc-conversations-list {
    padding: 16px;
    height: 100%;
    overflow-y: auto;
}

/* Settings */
.dc-settings {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.dc-settings-section h3 {
    font-size: 13px;
    font-weight: 600;
    color: var(--dc-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 8px 16px;
}

.dc-settings-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 12px 16px;
    background: var(--dc-bg-primary);
    border-radius: var(--dc-radius-md);
}

.dc-settings-item label {
    font-size: 13px;
    color: var(--dc-text-tertiary);
}

.dc-settings-item input,
.dc-settings-item select {
    padding: 10px 12px;
    border: 1px solid var(--dc-gray-4);
    border-radius: var(--dc-radius-sm);
    font-size: 16px;
    background: var(--dc-bg-secondary);
    color: var(--dc-text-primary);
}

.dc-driver-id {
    font-family: monospace;
    font-size: 14px;
    color: var(--dc-text-secondary);
}

.dc-settings-note {
    font-size: 13px;
    color: var(--dc-text-tertiary);
    margin: 8px 0 0 0;
}

/* Status Bar */
.dc-status-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px;
    background: var(--dc-bg-primary);
    border-top: 1px solid var(--dc-separator);
    font-size: 13px;
    color: var(--dc-text-tertiary);
}

.dc-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--dc-gray-3);
}

.dc-status-dot--connected {
    background: var(--dc-green);
}

.dc-status-dot--disconnected {
    background: var(--dc-red);
}

.dc-status-dot--connecting {
    background: var(--dc-orange);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Scrollbar */
.dc-subview::-webkit-scrollbar {
    width: 6px;
}

.dc-subview::-webkit-scrollbar-track {
    background: transparent;
}

.dc-subview::-webkit-scrollbar-thumb {
    background: var(--dc-gray-3);
    border-radius: 3px;
}

/* ========================================
   Notification System
   ======================================== */

/* Notification Container */
.dc-notification-container {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-width: 360px;
    pointer-events: none;
}

/* Individual Notification */
.dc-notification {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 16px;
    background: var(--dc-bg-primary);
    border-radius: var(--dc-radius-md);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--dc-separator);
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.3s ease-out;
    pointer-events: auto;
    cursor: pointer;
}

.dc-notification--visible {
    opacity: 1;
    transform: translateX(0);
}

.dc-notification__icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--dc-blue);
    color: white;
}

.dc-notification__icon svg {
    width: 18px;
    height: 18px;
}

.dc-notification--message .dc-notification__icon {
    background: var(--dc-blue);
}

.dc-notification--invitation .dc-notification__icon {
    background: var(--dc-green);
}

.dc-notification--nearby_driver .dc-notification__icon {
    background: var(--dc-orange);
}

.dc-notification--question .dc-notification__icon {
    background: #8B5CF6;
}

.dc-notification__content {
    flex: 1;
    min-width: 0;
}

.dc-notification__title {
    font-size: 14px;
    font-weight: 600;
    color: var(--dc-text-primary);
    margin-bottom: 2px;
}

.dc-notification__body {
    font-size: 13px;
    color: var(--dc-text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dc-notification__close {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--dc-gray-1);
    font-size: 18px;
    cursor: pointer;
    border-radius: 50%;
    transition: background 0.2s;
}

.dc-notification__close:hover {
    background: var(--dc-gray-5);
}

/* Badge */
.dc-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    font-size: 11px;
    font-weight: 600;
    color: white;
    background: var(--dc-red);
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Mobile Responsiveness */
@media (max-width: 480px) {
    .dc-notification-container {
        top: auto;
        bottom: 80px;
        left: 16px;
        right: 16px;
        max-width: none;
    }

    .dc-notification {
        transform: translateY(100%);
    }

    .dc-notification--visible {
        transform: translateY(0);
    }
}