@import url('open-iconic/font/css/open-iconic-bootstrap.min.css');
body {
    background: #e5e7eb;
    font-family: 'Segoe UI', 'Roboto', Arial, sans-serif;
    margin: 0;
    padding: 0;
}

body, html {
    height: 100%;
    margin: 0;
    padding: 0;
}

.chat-page {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 280px;
    background: #fff;
    border-right: 1px solid #e5e7eb;
    display: flex;
    flex-direction: column;
    padding: 0;
    box-shadow: 2px 0 8px rgba(0,0,0,0.03);
    transition: transform 0.3s cubic-bezier(.4,0,.2,1);
    z-index: 100;
    height: 100vh;
    min-height: 0;
}

.sidebar-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 28px 0 18px 0;
    border-bottom: 1px solid #e5e7eb;
    background: #fff;
}

.site-logo {
    font-size: 2.2rem;
    margin-bottom: 4px;
}

.site-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: #2563eb;
    letter-spacing: 0.5px;
}

.new-chat-btn {
    background: #2563eb;
    color: #fff;
    border: none;
    border-radius: 0 0 12px 0;
    padding: 18px 0;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 2px 8px rgba(37,99,235,0.08);
    transition: background 0.2s;
    margin-bottom: 8px;
    text-decoration: none;
}

    .new-chat-btn:hover {
        background: #1d4ed8;
    }

.remove-chat-btn {
    background: none;
    border: none;
    color: #9ca3af;
    font-size: 1.1rem;
    margin-left: 8px;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s, color 0.2s;
    padding: 0;
    border-radius: 0;
    display: flex;
    align-items: center;
    box-shadow: none;
}

.chat-list-item:hover .remove-chat-btn,
.chat-list-item:focus-within .remove-chat-btn {
    opacity: 1;
}

.remove-chat-btn:hover,
.remove-chat-btn:focus {
    color: #ef4444;
    background: none;
    outline: none;
    box-shadow: none;
}

.emoji {
    font-size: 1.3rem;
    vertical-align: middle;
}

.sidebar-header,
.new-chat-btn,
.sidebar-user {
    flex-shrink: 0;
}

.chat-list {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    list-style: none;
    margin: 0;
    padding: 0;
}

.chat-list-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 24px;
    cursor: pointer;
    border-left: 4px solid transparent;
    transition: background 0.15s, border-color 0.15s;
    font-size: 1.05rem;
    color: #374151;
}

    .chat-list-item:hover {
        background: #f3f4f6;
    }

    .chat-list-item.active {
        background: #e0e7ff;
        border-left: 4px solid #2563eb;
        color: #2563eb;
        font-weight: 600;
    }

.chat-avatar {
    width: 36px;
    height: 36px;
    background: #d1d5db;
    color: #374151;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.1rem;
    box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}

.chat-name {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.main-chat {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #f7f7fa;
    min-width: 0;
    min-height: 0;
    height: 100vh;
    align-items: center;
    justify-content: center;
}

.chat-app {
    width: 100%;
    max-width: 1200px;
    height: 100vh;
    max-height: 100vh;
    margin: auto;
    background: #f7f7fa;
    border-radius: 16px;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.10);
    display: flex;
    flex-direction: column;
    padding: 0;
    min-width: 0;
    min-height: 0;
}

.chat-title {
    padding: 24px 32px 16px 32px;
    font-size: 1.6rem;
    font-weight: 700;
    color: #2563eb;
    background: #fff;
    border-radius: 16px 16px 0 0;
    border-bottom: 1px solid #e5e7eb;
    letter-spacing: 0.5px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 16px;
    position: relative;
}

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.6rem;
    color: #2563eb;
    cursor: pointer;
    margin-right: 8px;
    padding: 4px 8px;
    border-radius: 6px;
    transition: background 0.2s;
}

    .sidebar-toggle:focus,
    .sidebar-toggle:hover {
        background: #e0e7ff;
    }

.chat-container {
    flex: 1 1 0;
    overflow-y: auto;
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    min-height: 0;
}

.chat-message {
    display: flex;
    align-items: flex-end;
    gap: 14px;
}

.avatar {
    width: 40px;
    height: 40px;
    background: #d1d5db;
    color: #374151;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}

.message-bubble {
    max-width: 80%;
    display: flex;
    flex-direction: column;
    gap: 4px;
    border-radius: 20px;
    padding: 0;
}

.message-text {
    padding: 14px 22px;
    border-radius: 20px;
    font-size: 1.05rem;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
    word-break: break-word;
}

.from-them .message-text {
    background: #e0e7ff;
    color: #1e293b;
    border-bottom-left-radius: 6px;
}

.from-me {
    flex-direction: row-reverse;
}

    .from-me .message-text {
        background: #2563eb;
        color: #fff;
        border-bottom-right-radius: 6px;
    }

.message-time {
    font-size: 0.8rem;
    color: #9ca3af;
    margin: 4px 12px 0 0;
    align-self: flex-end;
}

.chat-input-area {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 24px 32px;
    border-top: 1px solid #e5e7eb;
    background: #fff;
    border-radius: 0 0 16px 16px;
    flex-shrink: 0;
}

.input-row {
    display: flex;
    flex-direction: row;
    gap: 12px;
    align-items: center;
    margin-bottom: 0;
}

#userSelect {
    padding: 10px 14px;
    border-radius: 8px;
    border: 1px solid #d1d5db;
    font-size: 1rem;
    background: #f3f4f6;
    color: #374151;
    min-width: 110px;
    width: 100%;
    height: 44px;
}

.send-btn {
    background: #2563eb;
    color: #fff;
    border: none;
    border-radius: 10px;
    padding: 12px 24px;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background 0.2s;
    height: 44px;
    white-space: nowrap;
}

    .send-btn:hover {
        background: #1d4ed8;
    }

.chat-input {
    min-height: 44px;
    max-height: 120px;
    padding: 12px 16px;
    border-radius: 10px;
    border: 1px solid #d1d5db;
    font-size: 1.05rem;
    background: #f3f4f6;
    outline: none;
    resize: none;
    transition: border 0.2s;
    line-height: 1.4;
    box-sizing: border-box;
    width: 100%;
}

    .chat-input:focus {
        border: 1.5px solid #2563eb;
        background: #fff;
    }

.sidebar-user {
    margin-top: auto;
    padding: 20px 0 18px 0;
    border-top: 1px solid #e5e7eb;
    background: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
}

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

.user-avatar {
    width: 36px;
    height: 36px;
    background: #2563eb;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.1rem;
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.user-name {
    font-size: 1rem;
    font-weight: 500;
    color: #374151;
}

.logout-btn {
    background: #f3f4f6;
    color: #ef4444;
    border: none;
    border-radius: 8px;
    padding: 7px 16px;
    font-size: 0.98rem;
    font-weight: 500;
    cursor: pointer;
    margin-left: 8px;
    transition: background 0.2s, color 0.2s;
}

    .logout-btn:hover,
    .logout-btn:focus {
        background: #fee2e2;
        color: #b91c1c;
        outline: none;
    }

.login-btn {
    background: #2563eb;
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 10px 28px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

    .login-btn:hover,
    .login-btn:focus {
        background: #1d4ed8;
        outline: none;
    }

@media (max-width: 900px), (max-height: 800px) {
    .chat-page {
        flex-direction: column;
    }

    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100vh;
        width: 80vw;
        max-width: 320px;
        min-width: 200px;
        z-index: 200;
        transform: translateX(-100%);
        box-shadow: 2px 0 16px rgba(0,0,0,0.12);
        transition: transform 0.3s cubic-bezier(.4,0,.2,1);
    }

        .sidebar.sidebar-open {
            transform: translateX(0);
        }

    .sidebar-header {
        flex-direction: row;
        padding: 10px 12px;
        border-bottom: none;
        border-right: 1px solid #e5e7eb;
        min-width: 160px;
        max-width: 160px;
        background: #fff;
    }

    .site-logo {
        font-size: 1.5rem;
        margin-bottom: 0;
        margin-right: 8px;
    }

    .site-name {
        font-size: 1rem;
    }

    .chat-list {
        display: flex;
        flex-direction: column;
        gap: 0;
        overflow-x: hidden;
        overflow-y: auto;
        width: 100%;
    }

    .chat-list-item {
        flex-direction: row;
        align-items: center;
        padding: 12px 12px;
        min-width: 0;
        border-left: 4px solid transparent;
        border-bottom: none;
    }

        .chat-list-item.active {
            border-left: 4px solid #2563eb;
            border-bottom: none;
        }

    .remove-chat-btn {
        opacity: 1;
        font-size: 1.2rem;
        margin-left: 0;
        margin-top: 0;
    }

    .main-chat {
        height: 100vh;
        width: 100vw;
        align-items: stretch;
        justify-content: stretch;
    }

    .chat-app {
        width: 100vw;
        height: 100vh;
        max-width: 100vw;
        max-height: 100vh;
        margin: 0;
        border-radius: 0;
        box-shadow: none;
    }

    .chat-title {
        border-radius: 0;
        padding: 18px 16px 12px 16px;
        font-size: 1.2rem;
        gap: 8px;
    }

    .chat-container {
        padding: 16px 8px;
        gap: 12px;
    }

    .chat-input-area {
        padding: 16px 8px;
        border-radius: 0 0 0 0;
    }

    .sidebar-toggle {
        display: inline-flex;
    }
}

@media (max-width: 900px), (max-height: 800px) {
    body.sidebar-overlay::before {
        content: '';
        position: fixed;
        z-index: 150;
        left: 0;
        top: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(30, 41, 59, 0.18);
        pointer-events: auto;
        transition: opacity 0.2s;
    }
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid red;
}

.validation-message {
    color: red;
}

#blazor-error-ui {
    background: lightyellow;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

    #blazor-error-ui .dismiss {
        cursor: pointer;
        position: absolute;
        right: 0.75rem;
        top: 0.5rem;
    }

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }