/* ==================== */
/* === DM SYSTEM STYLES === */
/* ==================== */

/* Conversation List Styles */
.conversation-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.conversation-item {
    background: var(--nexus-card-bg);
    border: var(--border-width) solid var(--nexus-border) !important;
    border-radius: var(--border-radius);
    padding: 0.2rem !important;
    transition: var(--transition);
    cursor: pointer;
    display: block;
    text-decoration: none !important;
    color: inherit !important;
    margin-bottom: 0.2rem;
}

.conversation-item:hover {
    background: #2d2d36;
    border-color: var(--nexus-gold) !important;
    box-shadow: 0 4px 12px rgba(240, 192, 64, 0.1) !important;
    transform: translateX(4px);
}

.conversation-item h5 {
    color: var(--nexus-gold);
    font-weight: var(--font-weight-bold);
    margin-bottom: 0.5rem !important;
    font-family: var(--font-family-heading);
}

.conversation-item p {
    color: var(--nexus-text-muted);
    font-size: var(--font-size-sm);
    margin-bottom: 0 !important;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.conversation-item .badge {
    background: var(--nexus-gold) !important;
    color: var(--nexus-dark) !important;
    font-weight: var(--font-weight-bold);
    padding: 0.35rem 0.65rem !important;
    font-size: var(--font-size-sm);
}

/* Messages Container Styles */
.messages-container {
    background: var(--nexus-light-bg);
    border: var(--border-width) solid var(--nexus-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    min-height: 400px;
    max-height: 600px;
    overflow-y: auto;
    box-shadow: var(--shadow);
    scrollbar-width: thin;
    scrollbar-color: var(--nexus-gold) var(--nexus-input-bg);
    position: relative;
    scroll-behavior: smooth;
}

.messages-container::-webkit-scrollbar {
    width: 8px;
}

.messages-container::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

.messages-container::-webkit-scrollbar-thumb {
    background: rgba(240, 192, 64, 0.3);
    border-radius: 4px;
    transition: background 0.2s ease;
}

.messages-container::-webkit-scrollbar-thumb:hover {
    background: rgba(240, 192, 64, 0.5);
}

/* Message Groups */
.message-group {
    display: flex;
    margin-bottom: 1.5rem !important;
    animation: fadeInMessage 0.3s ease-in;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

@keyframes fadeInMessage {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Message Bubble Styles */
.message-bubble {
    background: var(--nexus-card-bg);
    border: var(--border-width) solid var(--nexus-border);
    border-radius: var(--border-radius-lg);
    padding: 0.75rem 1rem 1.75rem 1rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    max-width: 70%;
    min-width: 150px;
    word-wrap: break-word;
    word-break: break-word;
    position: relative;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.message-bubble:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.message-bubble p {
    margin: 0 0 0.5rem 0 !important;
    color: var(--nexus-text);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    padding-right: 0.5rem;
}

/* Sent Message (from current user) */
.message-sent {
    background: linear-gradient(135deg, #e1bc59 0%, #d6b04b 100%);
    border-color: var(--nexus-gold-dark);
    box-shadow: 0 2px 8px rgba(240, 192, 64, 0.2);
    border-radius: 1rem 1rem 0.25rem 1rem;
}

.message-sent p {
    color: #000 !important;
    text-align: left;
}

/* Received Message (from other user) */
.message-received {
    background: #2d2d36;
    border-color: #5a5a63;
    color: #e0e0e0 !important;
    border-radius: 1rem 1rem 1rem 0.25rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.message-received p {
    color: #e0e0e0 !important;
}

/* Message Timestamp - positioned inside bubble */
.message-timestamp {
    position: absolute;
    bottom: 4px;
    right: 8px;
    font-size: 0.7rem;
    white-space: nowrap;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.message-group:hover .message-timestamp {
    opacity: 1;
}

.timestamp-sent {
    color: rgb(0, 0, 0) !important;
}

.timestamp-received {
    color: rgb(255, 255, 255) !important;
}

/* Form Styles */
.form-control-dark {
    background: #2d2d36 !important;
    color: #e0e0e0 !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    border-radius: var(--border-radius);
    padding: 0.75rem;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control-dark::placeholder {
    color: rgba(224, 224, 224, 0.5) !important;
}

.form-control-dark:focus {
    background: #2d2d36 !important;
    color: #e0e0e0 !important;
    border-color: var(--nexus-gold) !important;
    box-shadow: 0 0 0 0.2rem rgba(240, 192, 64, 0.15) !important;
    outline: none !important;
}

.form-control-dark:disabled {
    background: var(--nexus-border) !important;
    color: var(--nexus-text-muted) !important;
    opacity: 0.5;
}

/* Form Labels */
.form-control-dark + .form-text {
    color: var(--nexus-text-muted) !important;
    font-size: var(--font-size-xs);
    margin-top: 0.5rem;
}

/* Empty State Styles */
.conversation-empty,
#messages-empty {
    text-align: center;
    padding: 3rem 1rem;
    transition: opacity 0.3s ease;
}

.conversation-empty i,
#messages-empty i {
    color: var(--nexus-text-muted);
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.conversation-empty h4 {
    color: var(--nexus-text-light);
    font-weight: var(--font-weight-bold);
    margin-bottom: 0.5rem;
}

.conversation-empty p,
#messages-empty p {
    color: var(--nexus-text-muted);
    font-size: var(--font-size-sm);
    margin-bottom: 1.5rem;
}

/* Scroll-to-bottom button */
.scroll-to-bottom {
    position: sticky;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    opacity: 0.9;
    transition: opacity 0.2s ease, transform 0.2s ease;
    padding: 0 !important;
    min-width: 48px !important;
}

.scroll-to-bottom:hover {
    opacity: 1;
    transform: translateX(-50%) scale(1.05);
}

.scroll-to-bottom i {
    font-size: 1.5rem;
}

/* DM Search Results */
.dm-search-wrapper {
    position: relative;
    width: 100%;
}

.dm-search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 1100;
    display: none;
    max-height: 300px;
    overflow-y: auto;
    background: #1a1a1a;
    border: 1px solid var(--nexus-gold);
    border-radius: 0.5rem;
    margin-top: 0.25rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.dm-search-item {
    padding: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none !important;
    color: var(--nexus-text) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: background 0.2s ease;
}

.dm-search-item:last-child {
    border-bottom: none;
}

.dm-search-item:hover {
    background: #2d2d36;
}

/* Message Avatar Styles */
.message-avatar {
    width: 36px;
    height: 36px;
    object-fit: cover;
}

/* Send Button Icon Only */
.dm-send-button-icon {
    width: 60px;
    height: 60px;
    min-width: 60px !important;
    min-height: 60px;
    padding: 0 !important;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    flex-shrink: 0;
    transition: all 0.2s ease;
    margin-bottom: var(--spacing-md);
}

.dm-send-button-icon i {
    font-size: 1.5rem;
    transition: transform 0.2s ease;
}

.dm-send-button-icon:hover i {
    transform: translateX(2px);
}

.dm-send-button-icon:active {
    transform: scale(0.95);
}

.dm-send-button-icon:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.dm-send-button-icon:disabled:hover i {
    transform: none;
}

/* Badge Styling */
.bg-nexus-gold {
    background: linear-gradient(135deg, #f0c040 0%, #e6a800 100%) !important;
    color: #000 !important;
    font-weight: 600;
}

/* Unread badge in header */
#unread-dm-count {
    position: absolute !important;
    top: 0 !important;
    right: 0 !important;
    left: auto !important;
    bottom: auto !important;
    transform: translate(50%, -50%) !important;
    background: var(--nexus-red);
    color: var(--nexus-pure-white);
    font-size: 0.7rem;
    font-weight: bold;
    min-width: 17px;
    height: 17px;
    padding: 0px;
    border-radius: 25%;
    border: none;
    display: flex !important;
    align-items: center;
    justify-content: center;
    text-align: center;
    line-height: 1;
    -webkit-text-stroke: 0.2px #000;
    text-shadow: 0 0 1px #000;
}

#unread-dm-count.notification-count {
    display: none !important;
}

/* Utility Classes */
.min-w-0 {
    min-width: 0;
}

.transition-all {
    transition: var(--transition);
}

.text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.flex-shrink-0 {
    flex-shrink: 0;
}

.flex-grow-1 {
    flex-grow: 1;
}

.gap-2 {
    gap: 0.5rem;
}

.gap-3 {
    gap: 1rem;
}

.ms-2 {
    margin-left: 0.5rem;
}

.me-2 {
    margin-right: 0.5rem;
}

/* Button Groups */
.btn-group-dm {
    display: flex;
    gap: 0.5rem;
}

.btn-group-dm .btn-nexus,
.btn-group-dm .btn-nexus-lite {
    flex: 1;
}

/* Animation Transitions */
.fade-in {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.slide-in {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        transform: translateX(-20px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInMessage {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message-group-new {
    animation: slideInMessage 0.3s ease;
}

/* Prevent layout shift during updates */
.messages-list-stable {
    min-height: 100px;
}

/* Loading state */
.messages-loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Responsive Design */
@media (max-width: 768px) {
    .messages-container {
        max-height: 500px !important;
        min-height: 300px;
    }

    .message-bubble {
        max-width: 85% !important;
        padding: 0.65rem 0.85rem 1.5rem 0.85rem;
        font-size: 0.9rem;
    }

    .message-bubble p {
        font-size: var(--font-size-sm);
    }

    .conversation-item {
        padding: 1rem !important;
    }

    .conversation-item:hover {
        transform: translateX(2px);
    }

    .container-fluid {
        padding: 0.5rem;
    }

    .scroll-to-bottom {
        width: 40px;
        height: 40px;
    }

    .scroll-to-bottom i {
        font-size: 1.25rem;
    }

    .dm-send-button-icon {
        width: 50px;
        height: 50px;
        min-width: 50px !important;
        min-height: 50px;
    }

    .dm-send-button-icon i {
        font-size: 1.3rem;
    }
}

@media (max-width: 576px) {
    .message-bubble {
        max-width: 90%;
        font-size: 0.85rem;
        padding: 0.6rem 0.75rem 1.5rem 0.75rem;
    }

    .messages-container {
        max-height: 400px;
    }

    .message-timestamp {
        font-size: 0.65rem;
    }

    .dm-send-button-icon {
        width: 48px;
        height: 48px;
        min-width: 48px !important;
        min-height: 48px;
        border-radius: 10px;
    }

    .dm-send-button-icon i {
        font-size: 1.2rem;
    }
}

/* ==================== */
/* === AUTO-EXPANDING TEXTAREA === */
/* ==================== */

#message-input {
    min-height: 60px;
    max-height: 400px;
    resize: none;
    overflow-y: auto;
    overflow-x: hidden;
    font-family: inherit;
    line-height: 1.5;
    padding: 0.75rem;
    border-radius: var(--border-radius);
    border: var(--border-width) solid var(--nexus-border);
    background: var(--nexus-input-bg);
    color: var(--nexus-text);
    transition: all 0.2s ease;
}

#message-input:focus {
    border-color: var(--nexus-gold);
    box-shadow: 0 0 0 3px rgba(240, 192, 64, 0.1);
    outline: none;
}

#message-input::placeholder {
    color: var(--nexus-text-muted);
}