/* casual imessage vibes */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-dark: #000000;
    --bg-sidebar: #1c1c1e;
    --text-primary: #ffffff;
    --text-secondary: #8e8e93;
    --bubble-received: #262628;
    --bubble-sent: #0a84ff;
    --border-color: #38383a;
    --hover-color: #2c2c2e;
    --active-color: #3a3a3c;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
}

.imessage-container {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* sidebar */
.conversations-sidebar {
    width: 350px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.sidebar-header {
    padding: 20px 20px 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.messages-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

/* search */
.search-wrapper {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

.search-input {
    width: 100%;
    background-color: var(--hover-color);
    border: none;
    border-radius: 8px;
    padding: 8px 12px;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
}

.search-input::placeholder {
    color: var(--text-secondary);
}

/* conversations */
.conversations-list {
    flex: 1;
    overflow-y: auto;
}

.conversation-item {
    display: flex;
    padding: 12px 16px;
    cursor: pointer;
    transition: background-color 0.15s ease;
    border-bottom: 1px solid var(--border-color);
}

.conversation-item:hover {
    background-color: var(--hover-color);
}

.conversation-item.active {
    background-color: var(--active-color);
}

.conversation-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    flex-shrink: 0;
}

.conversation-avatar.group {
    background-color: var(--hover-color);
}

.group-icon {
    font-size: 24px;
}

.conversation-info {
    flex: 1;
    min-width: 0;
}

.conversation-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 4px;
}

.conversation-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.conversation-time {
    font-size: 13px;
    color: var(--text-secondary);
}

.conversation-preview {
    font-size: 14px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.sidebar-footer p {
    font-size: 12px;
    color: var(--text-secondary);
}

/* chat area */
.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-dark);
}

.chat-content {
    display: none;
    flex-direction: column;
    height: 100%;
}

.chat-content.active {
    display: flex;
}

/* chat header */
.chat-header {
    background-color: var(--bg-sidebar);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-avatar.group {
    background-color: var(--hover-color);
}

.chat-avatar .group-icon {
    font-size: 20px;
}

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

.chat-subtitle {
    font-size: 13px;
    color: var(--text-secondary);
}

.chat-actions {
    display: flex;
    gap: 12px;
}

.action-btn {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: background-color 0.2s ease;
}

.action-btn:hover {
    background-color: var(--hover-color);
}

/* messages */
.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.message {
    display: flex;
    flex-direction: column;
    margin-bottom: 2px;
    max-width: 70%;
    animation: fadeIn 0.3s ease;
}

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

.message.received {
    align-self: flex-start;
}

.message.sent {
    align-self: flex-end;
}

.message-bubble {
    padding: 10px 14px;
    border-radius: 18px;
    font-size: 15px;
    line-height: 1.4;
    word-wrap: break-word;
}

.message.received .message-bubble {
    background-color: var(--bubble-received);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
}

.message.sent .message-bubble {
    background-color: var(--bubble-sent);
    color: #ffffff;
    border-bottom-right-radius: 4px;
}

/* links and strong */
.message-bubble a {
    color: inherit;
    text-decoration: none;
    border-bottom: 1px solid currentColor;
    transition: opacity 0.2s ease;
}

.message-bubble a:hover {
    opacity: 0.7;
}

.message-bubble strong {
    font-weight: 600;
}

.message-bubble strong a {
    font-weight: 600;
}

/* scrollbar */
.conversations-list::-webkit-scrollbar,
.messages-container::-webkit-scrollbar {
    width: 6px;
}

.conversations-list::-webkit-scrollbar-track,
.messages-container::-webkit-scrollbar-track {
    background: transparent;
}

.conversations-list::-webkit-scrollbar-thumb,
.messages-container::-webkit-scrollbar-thumb {
    background: rgba(142, 142, 147, 0.3);
    border-radius: 3px;
}

.conversations-list::-webkit-scrollbar-thumb:hover,
.messages-container::-webkit-scrollbar-thumb:hover {
    background: rgba(142, 142, 147, 0.5);
}

/* selection */
::selection {
    background-color: var(--bubble-sent);
    color: white;
}

/* responsive */
@media (max-width: 968px) {
    .conversations-sidebar {
        width: 300px;
    }
    
    .message {
        max-width: 75%;
    }
}

@media (max-width: 768px) {
    .conversations-sidebar {
        position: absolute;
        left: -100%;
        height: 100%;
        width: 85%;
        max-width: 350px;
        z-index: 1000;
        transition: left 0.3s ease;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
    }
    
    .conversations-sidebar.mobile-open {
        left: 0;
    }
    
    .messages-container {
        padding: 16px;
    }
    
    .message {
        max-width: 85%;
    }
    
    .message-bubble {
        padding: 9px 13px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .messages-title {
        font-size: 28px;
    }
    
    .conversation-avatar {
        width: 40px;
        height: 40px;
    }
    
    .group-icon {
        font-size: 20px;
    }
    
    .messages-container {
        padding: 12px;
    }
    
    .message {
        max-width: 90%;
    }
}

/* mobile menu button */
.mobile-menu-btn {
    position: fixed;
    top: 16px;
    left: 16px;
    background-color: var(--bg-sidebar);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    width: 40px;
    height: 40px;
    font-size: 20px;
    cursor: pointer;
    z-index: 1001;
    display: none;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease;
}

.mobile-menu-btn:hover {
    background-color: var(--hover-color);
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    .chat-header {
        padding-left: 60px;
    }
}

/* smooth stuff */
* {
    -webkit-tap-highlight-color: transparent;
}