/* ═══ Reset & Base ═══ */
:root {
    --app-height: 100dvh;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
    height: 100vh;
    height: 100dvh;
}
body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    background: #36393f;
    color: #dcddde;
    overflow: hidden;
}

/* ═══ Accessibility ═══ */
.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    background: #5865f2;
    color: #fff;
    padding: 8px 16px;
    z-index: 1000;
    border-radius: 0 0 4px 0;
    text-decoration: none;
    font-weight: 600;
}
.skip-link:focus {
    top: 0;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* Focus indicators for keyboard navigation */
*:focus-visible {
    outline: 2px solid #5865f2;
    outline-offset: 2px;
}
.input-group input:focus-visible {
    outline: 2px solid #5865f2;
    outline-offset: 0;
}
.chat-input-area input:focus-visible {
    outline: 2px solid #5865f2;
    outline-offset: 0;
}

/* ═══ Login View ═══ */
.login-view {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    height: 100dvh;
    height: var(--app-height, 100dvh);
    background: linear-gradient(135deg, #1a1c20 0%, #2c2f33 50%, #23272a 100%);
}

.login-card {
    background: #36393f;
    border-radius: 12px;
    padding: 40px;
    width: 420px;
    max-width: 90vw;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

.logo {
    font-size: 2em;
    font-weight: 700;
    color: #fff;
    text-align: center;
    margin-bottom: 4px;
}
.logo .alt {
    color: #5865f2;
}

.tagline {
    text-align: center;
    color: #a0a4a8;
    font-size: 0.9em;
    margin-bottom: 24px;
}

.input-group {
    margin-bottom: 16px;
}
.input-group label {
    display: block;
    font-size: 0.8em;
    font-weight: 600;
    text-transform: uppercase;
    color: #b0b4b8;
    margin-bottom: 6px;
}
.input-group input {
    width: 100%;
    padding: 10px 12px;
    background: #202225;
    border: 1px solid #040405;
    border-radius: 4px;
    color: #dcddde;
    font-size: 1em;
    outline: none;
    transition: border-color 0.2s;
}
.input-group input:focus {
    border-color: #5865f2;
}

.divider {
    display: flex;
    align-items: center;
    margin: 20px 0;
    color: #a0a4a8;
    font-size: 0.8em;
    text-transform: uppercase;
    font-weight: 600;
}
.divider::before, .divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #4f545c;
}
.divider span { padding: 0 12px; }

.btn {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 4px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, opacity 0.2s;
}
.btn:hover { opacity: 0.9; }
.btn:active { transform: scale(0.99); }

.btn-primary {
    background: #5865f2;
    color: #fff;
}
.btn-secondary {
    background: #4f545c;
    color: #fff;
}
.btn-send {
    width: auto;
    padding: 10px 20px;
    background: #5865f2;
    color: #fff;
    border-radius: 4px;
}

.error-msg {
    margin-top: 12px;
    padding: 10px;
    background: rgba(237, 66, 69, 0.2);
    border: 1px solid #ed4245;
    border-radius: 4px;
    color: #ed4245;
    font-size: 0.9em;
    text-align: center;
}

/* ═══ Chat View ═══ */
.chat-view {
    display: flex;
    height: 100vh;
    height: 100dvh;
    height: var(--app-height, 100dvh);
}

/* Sidebar */
.sidebar {
    width: 240px;
    min-width: 240px;
    background: #2f3136;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.sidebar-header {
    padding: 16px;
    border-bottom: 1px solid #202225;
}
.sidebar-header h2 {
    font-size: 1.1em;
    color: #fff;
    margin-bottom: 6px;
}

.room-code-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 4px;
}

.room-code-badge {
    display: inline-block;
    background: #5865f2;
    color: #fff;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.8em;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
}
.room-code-badge:hover::after,
.room-code-badge:focus::after {
    content: ' (copy)';
    font-weight: 400;
    font-size: 0.85em;
}

.btn-share {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: #4f545c;
    color: #dcddde;
    border: none;
    border-radius: 12px;
    padding: 4px 10px;
    font-size: 0.75em;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    white-space: nowrap;
}
.btn-share:hover {
    background: #5865f2;
    color: #fff;
}
.btn-share svg {
    flex-shrink: 0;
}

.share-toast {
    font-size: 0.75em;
    color: #3ba55d;
    font-weight: 600;
    margin-top: 4px;
    min-height: 1.2em;
    opacity: 0;
    transition: opacity 0.3s;
}
.share-toast.visible {
    opacity: 1;
}

.sidebar-section {
    padding: 12px 16px;
}
.section-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}
.section-header-row h3 {
    font-size: 0.75em;
    text-transform: uppercase;
    color: #a0a4a8;
    font-weight: 700;
}
.sidebar-section > h3 {
    font-size: 0.75em;
    text-transform: uppercase;
    color: #a0a4a8;
    font-weight: 700;
    margin-bottom: 8px;
}

.btn-icon {
    background: none;
    border: none;
    color: #a0a4a8;
    font-size: 1.1em;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
    border-radius: 3px;
    transition: color 0.2s, background 0.2s;
}
.btn-icon:hover {
    color: #fff;
    background: #393c43;
}

.badge {
    background: #4f545c;
    color: #dcddde;
    padding: 1px 6px;
    border-radius: 8px;
    font-size: 0.85em;
    margin-left: 4px;
}

/* ═══ Channel List ═══ */
.channel-list, .member-list {
    list-style: none;
}
.channel-list li {
    padding: 6px 8px;
    border-radius: 4px;
    color: #b0b4b8;
    cursor: pointer;
    font-size: 0.95em;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.channel-list li.active, .channel-list li:hover {
    background: #393c43;
    color: #fff;
}

.channel-unread {
    background: #ed4245;
    color: #fff;
    font-size: 0.7em;
    font-weight: 700;
    padding: 1px 5px;
    border-radius: 8px;
    min-width: 16px;
    text-align: center;
}

.new-channel-form {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 4px 8px;
}
.channel-hash {
    color: #a0a4a8;
    font-size: 0.95em;
    font-weight: 600;
}
.new-channel-form input {
    flex: 1;
    background: #202225;
    border: 1px solid #5865f2;
    border-radius: 3px;
    color: #dcddde;
    font-size: 0.85em;
    padding: 3px 6px;
    outline: none;
}

/* ═══ Member List ═══ */
.member-list li {
    padding: 4px 8px;
    font-size: 0.9em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75em;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
    position: relative;
}

.member-status-emoji {
    position: absolute;
    bottom: -2px;
    right: -4px;
    font-size: 0.85em;
    line-height: 1;
}

/* ═══ Sidebar Footer (mute + status) ═══ */
.sidebar-footer {
    margin-top: auto;
    padding: 12px 16px;
    border-top: 1px solid #202225;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-mute, .btn-status {
    background: #393c43;
    border: none;
    color: #a0a4a8;
    padding: 6px 8px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, color 0.2s;
}
.btn-mute:hover, .btn-status:hover {
    background: #4f545c;
    color: #fff;
}
.btn-mute.muted {
    color: #ed4245;
}

.btn-status {
    font-size: 1.2em;
    min-width: 32px;
    min-height: 32px;
}
#my-status-emoji:empty::after {
    content: '\263A'; /* smiley */
    opacity: 0.5;
}

.status-picker {
    position: absolute;
    bottom: 52px;
    left: 16px;
    background: #2f3136;
    border: 1px solid #202225;
    border-radius: 8px;
    padding: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.4);
    z-index: 200;
}
.status-picker-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 4px;
    margin-bottom: 6px;
}
.status-picker-grid button {
    background: none;
    border: none;
    font-size: 1.3em;
    padding: 4px;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.15s;
}
.status-picker-grid button:hover {
    background: #393c43;
}
.btn-clear-status {
    background: none;
    border: none;
    color: #a0a4a8;
    font-size: 0.75em;
    cursor: pointer;
    width: 100%;
    text-align: center;
    padding: 4px;
}
.btn-clear-status:hover {
    color: #fff;
}

.sidebar-toggle {
    display: none;
    position: fixed;
    top: 0.5em;
    left: 0.5em;
    z-index: 100;
    background: #5865f2;
    color: #fff;
    border: none;
    border-radius: clamp(3px, 0.5vw, 6px);
    padding: 0.35em 0.6em;
    font-size: clamp(0.85rem, 2.5vw, 1.15rem);
    line-height: 1;
    cursor: pointer;
    width: clamp(28px, 8vw, 40px);
    height: clamp(28px, 8vw, 40px);
    display: none;
    align-items: center;
    justify-content: center;
}

/* ═══ Chat Main Area ═══ */
.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #36393f;
    min-width: 0;
}

.chat-header {
    padding: 12px 16px;
    border-bottom: 1px solid #202225;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
}
.channel-name { color: #fff; }

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-left: auto;
}
.status-dot.connected { background: #3ba55d; }
.status-dot.disconnected { background: #ed4245; }

/* ═══ Messages ═══ */
.messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
}

.message {
    display: flex;
    gap: 12px;
    margin-bottom: 4px;
    align-items: flex-start;
    padding: 6px 8px;
    border-radius: 4px;
    position: relative;
}
.message:hover {
    background: rgba(0,0,0,0.06);
}

/* Hover action buttons */
.msg-actions {
    display: none;
    position: absolute;
    top: -8px;
    right: 8px;
    background: #2f3136;
    border: 1px solid #202225;
    border-radius: 4px;
    padding: 2px;
    gap: 2px;
}
.message:hover .msg-actions {
    display: flex;
}
.msg-action-btn {
    background: none;
    border: none;
    color: #a0a4a8;
    font-size: 1em;
    padding: 2px 6px;
    border-radius: 3px;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}
.msg-action-btn:hover {
    background: #393c43;
    color: #fff;
}

.message .msg-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1em;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.msg-content {
    min-width: 0;
    flex: 1;
}
.msg-header {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 2px;
}
.msg-name {
    font-weight: 600;
    font-size: 0.95em;
}
.msg-time {
    font-size: 0.75em;
    color: #a0a4a8;
}
.msg-text {
    color: #dcddde;
    word-wrap: break-word;
    line-height: 1.4;
}

/* Markdown styles */
.msg-text strong { font-weight: 700; color: #fff; }
.msg-text em { font-style: italic; }
.msg-text code {
    background: #2f3136;
    padding: 1px 4px;
    border-radius: 3px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9em;
}
.msg-text pre {
    background: #2f3136;
    padding: 8px 12px;
    border-radius: 4px;
    overflow-x: auto;
    margin: 4px 0;
}
.msg-text pre code {
    background: none;
    padding: 0;
}
.msg-text a {
    color: #5865f2;
    text-decoration: none;
}
.msg-text a:hover {
    text-decoration: underline;
}

/* Reply reference */
.msg-reply-ref {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 2px 0 4px 0;
    font-size: 0.8em;
    color: #a0a4a8;
    cursor: pointer;
}
.msg-reply-ref:hover {
    color: #dcddde;
}
.msg-reply-ref::before {
    content: '';
    display: inline-block;
    width: 24px;
    height: 12px;
    border-left: 2px solid #4f545c;
    border-top: 2px solid #4f545c;
    border-radius: 6px 0 0 0;
    margin-right: 4px;
    flex-shrink: 0;
}
.msg-reply-ref .reply-name {
    font-weight: 600;
    color: #b0b4b8;
}

/* Reactions */
.msg-reactions {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 4px;
}
.reaction-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(88,101,242,0.15);
    border: 1px solid rgba(88,101,242,0.3);
    border-radius: 12px;
    padding: 1px 8px;
    font-size: 0.85em;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}
.reaction-chip:hover {
    background: rgba(88,101,242,0.3);
}
.reaction-chip.mine {
    border-color: #5865f2;
    background: rgba(88,101,242,0.25);
}
.reaction-chip .reaction-count {
    font-size: 0.8em;
    color: #a0a4a8;
}

.system-message {
    color: #a0a4a8;
    font-style: italic;
    padding: 4px 0;
    margin-bottom: 8px;
    font-size: 0.9em;
    text-align: center;
}

/* ═══ Typing Indicator ═══ */
.typing-indicator {
    padding: 4px 16px 2px;
    font-size: 0.8em;
    color: #a0a4a8;
    display: flex;
    align-items: center;
    gap: 6px;
}
.typing-dots {
    display: inline-flex;
    gap: 3px;
}
.typing-dots span {
    width: 6px;
    height: 6px;
    background: #a0a4a8;
    border-radius: 50%;
    animation: typing-bounce 1.4s infinite ease-in-out;
}
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing-bounce {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-4px); }
}

/* ═══ Reply Bar ═══ */
.reply-bar {
    padding: 6px 16px;
    background: #32353b;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85em;
    color: #a0a4a8;
    border-left: 3px solid #5865f2;
    margin: 0 16px;
    border-radius: 4px;
}
.btn-reply-cancel {
    background: none;
    border: none;
    color: #a0a4a8;
    font-size: 1.2em;
    cursor: pointer;
    padding: 0 4px;
}
.btn-reply-cancel:hover {
    color: #fff;
}

/* ═══ Reaction Picker ═══ */
.reaction-picker {
    position: fixed;
    background: #2f3136;
    border: 1px solid #202225;
    border-radius: 8px;
    padding: 6px;
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 2px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.4);
    z-index: 300;
}
.reaction-picker button {
    background: none;
    border: none;
    font-size: 1.2em;
    padding: 4px;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.15s;
}
.reaction-picker button:hover {
    background: #393c43;
}

/* ═══ Input Area ═══ */
.chat-input-area {
    padding: 12px 16px;
    display: flex;
    gap: 8px;
    background: #36393f;
}

.chat-input-area input {
    flex: 1;
    padding: 10px 14px;
    background: #40444b;
    border: none;
    border-radius: 8px;
    color: #dcddde;
    font-size: 1em;
    outline: none;
}
.chat-input-area input::placeholder {
    color: #a0a4a8;
}

/* ═══ Scrollbar ═══ */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #202225; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #2f3136; }

/* ═══ Image Sharing ═══ */
.btn-attach {
    width: 40px;
    height: 40px;
    min-width: 40px;
    padding: 0;
    background: #40444b;
    border: none;
    border-radius: 50%;
    font-size: 1.2em;
    color: #dcddde;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background 0.2s, color 0.2s;
}
.btn-attach:hover {
    background: #5865f2;
    color: #fff;
}

.image-preview-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
}
.image-preview-card {
    background: #36393f;
    border-radius: 12px;
    padding: 24px;
    max-width: 480px;
    width: 90vw;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}
.image-preview-card h3 {
    color: #fff;
    margin-bottom: 12px;
    font-size: 1.1em;
}
#preview-img {
    max-width: 100%;
    max-height: 300px;
    border-radius: 8px;
    object-fit: contain;
    display: block;
    margin: 0 auto;
}
.preview-info {
    font-size: 0.8em;
    color: #a0a4a8;
    margin: 8px 0;
    text-align: center;
}
.preview-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 16px;
}
.preview-actions .btn {
    width: auto;
    padding: 8px 24px;
}

.msg-image {
    max-width: 400px;
    max-height: 300px;
    border-radius: 8px;
    cursor: pointer;
    display: block;
    margin-top: 4px;
    object-fit: contain;
}
.msg-image:hover {
    opacity: 0.9;
}

.msg-image-loading {
    width: 200px;
    height: 150px;
    background: #40444b;
    border-radius: 8px;
    margin-top: 4px;
    animation: pulse 1.5s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 300;
}
.lightbox-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    color: #fff;
    font-size: 2em;
    width: 48px;
    height: 48px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.2s;
}
.lightbox-close:hover {
    background: rgba(255,255,255,0.1);
}
#lightbox-img {
    max-width: 90vw;
    max-height: 90vh;
    max-height: 90dvh;
    object-fit: contain;
}

.messages.drag-over {
    border: 2px dashed #5865f2;
    background: rgba(88,101,242,0.1);
}

/* ═══ Mobile ═══ */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -260px;
        top: 0;
        height: 100vh;
        height: 100dvh;
        height: var(--app-height, 100dvh);
        z-index: 50;
        transition: left 0.3s ease;
    }
    .sidebar.open {
        left: 0;
        box-shadow: 4px 0 16px rgba(0,0,0,0.5);
    }
    .sidebar-toggle {
        display: flex;
    }
    .chat-header {
        padding-left: calc(0.5em + clamp(28px, 8vw, 40px) + 0.5em);
    }
}

/* ═══ Safe Area (notched devices) ═══ */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
    .chat-input-area {
        padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
    }
}