/* Lexi Chat - Page Styles */
/* CSS Variables provided by global.css */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    min-height: 100dvh;
    padding: 20px;
}
.layout {
    display: flex;
    gap: 20px;
    height: calc(100dvh - 120px);
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}
.sidebar {
    width: 260px;
    background: var(--card-bg);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.sidebar-header {
    padding: 18px 18px 12px 18px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
}

.sidebar-close-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 18px;
    cursor: pointer;
    padding: 4px 6px;
    border-radius: 6px;
    display: none;
}

.sidebar-close-btn:hover {
    background: var(--section-bg);
    color: var(--text-color);
}
.sidebar-title {
    font-size: 16px;
    font-weight: 600;
    flex: 1;
}
.new-chat-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    border: none;
    border-radius: 10px;
    padding: 8px 12px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.new-chat-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(124, 77, 255, 0.35);
}
.session-list {
    padding: 10px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.session-item {
    padding: 10px 12px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--input-bg);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    gap: 4px;
    position: relative;
}
.session-item:hover {
    border-color: var(--primary-color);
    transform: translateY(-1px);
}
.session-item.active {
    border-color: var(--primary-color);
    background: var(--section-bg);
    box-shadow: 0 4px 12px rgba(124, 77, 255, 0.18);
}
.session-item-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}
.session-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding-right: 28px;
}
.session-meta {
    font-size: 11px;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
    gap: 6px;
}
.session-delete-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 16px;
    cursor: pointer;
    padding: 6px 8px;
    min-width: 32px;
    min-height: 32px;
    border-radius: 6px;
    opacity: 0;
    transition: all 0.2s ease;
    z-index: var(--z-base);
}
.session-item:hover .session-delete-btn {
    opacity: 0.6;
}
.session-delete-btn:hover {
    opacity: 1 !important;
    background: var(--error-color);
    color: white;
    transform: scale(1.1);
}
.session-empty {
    padding: 14px;
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
}
.container {
    max-width: 1000px;
    margin: 0;
    background-color: var(--card-bg);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    flex: 1;
}

.header {
    background: linear-gradient(135deg, rgba(124, 77, 255, 0.92) 0%, rgba(156, 120, 255, 0.86) 100%);
    padding: 20px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.22);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.chat-logo {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    backdrop-filter: blur(10px);
}

.header h1 {
    font-size: 24px;
    font-weight: 600;
    color: white;
    margin: 0;
}

.header .subtitle {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 2px;
}

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

.sessions-toggle-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    border-radius: 999px;
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    display: none;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
}

.sessions-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    background: linear-gradient(to bottom, var(--bg-color), var(--card-bg));
}

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

.chat-messages::-webkit-scrollbar-track {
    background: var(--input-bg);
    border-radius: 4px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: var(--primary-hover);
}

.message {
    display: flex;
    flex-direction: column;
    max-width: 75%;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

.message-content {
    padding: 14px 18px;
    border-radius: 16px;
    word-wrap: break-word;
    position: relative;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    line-height: 1.55;
}

.message.user .message-content {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    border-bottom-right-radius: 4px;
}

.message.assistant .message-content {
    background: var(--chat-bot-bg);
    color: var(--text-color);
    border-bottom-left-radius: 4px;
    border: 1px solid var(--border-color);
    line-height: 1.55;
}

/* Markdown Formatting in Messages */
.message-content p {
    margin: 0.3em 0;
    white-space: pre-wrap;
}

.message-content p:first-child {
    margin-top: 0;
}

.message-content p:last-child {
    margin-bottom: 0;
}

.message-content br {
    display: block;
    content: "";
    margin: 0.3em 0;
}

.message-content strong {
    font-weight: 600;
    color: var(--primary-color);
}

.message-content em {
    font-style: italic;
    opacity: 0.9;
}

.message-content code {
    background: var(--input-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

.message-content pre {
    background: var(--input-bg);
    padding: 12px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 0.5em 0;
}

.message-content pre code {
    background: none;
    padding: 0;
}

.message-content ul,
.message-content ol {
    margin: 0.5em 0;
    padding-left: 1.5em;
}

.message-content li {
    margin: 0.25em 0;
}

.message-content a {
    color: var(--primary-color);
    text-decoration: underline;
}

.message-content a:hover {
    color: var(--primary-hover);
}

.message-content blockquote {
    border-left: 3px solid var(--primary-color);
    padding-left: 12px;
    margin: 0.5em 0;
    font-style: italic;
    opacity: 0.9;
}

.timestamp {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 6px;
    padding: 0 8px;
}

.feedback-buttons {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    padding: 0 8px;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.feedback-buttons:hover {
    opacity: 1;
}

.feedback-btn {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 14px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.2s;
    color: var(--text-color);
}

.feedback-btn:hover {
    background: var(--section-bg);
    transform: scale(1.1);
    border-color: var(--primary-color);
}

.feedback-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.correction-input-container {
    margin-top: 10px;
    display: none;
    animation: slideDown 0.3s ease-out;
}

.correction-input-container.show {
    display: block;
}

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

.correction-input {
    width: 100%;
    padding: 10px 14px;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-color);
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    min-height: 60px;
}

.correction-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(124, 77, 255, 0.1);
}

.correction-submit-btn {
    margin-top: 8px;
    padding: 8px 18px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.correction-submit-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(124, 77, 255, 0.3);
}

.input-area {
    padding: 20px 30px;
    border-top: 1px solid var(--border-color);
    background: var(--card-bg);
    display: flex;
    gap: 12px;
    align-items: center;
}

.sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: var(--z-dropdown);
}

.sidebar-backdrop.show {
    opacity: 1;
    pointer-events: auto;
}

.input-field {
    flex: 1;
    padding: 14px 20px;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    color: var(--text-color);
    font-size: 15px;
    outline: none;
    transition: all 0.2s;
}

.input-field:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(124, 77, 255, 0.1);
}

.send-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    border: none;
    border-radius: 24px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 12px rgba(124, 77, 255, 0.3);
}

.send-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(124, 77, 255, 0.4);
}

.send-btn:active {
    transform: translateY(0);
}

.send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.typing-indicator {
    display: none;
    align-self: flex-start;
    padding: 14px 20px;
    background: var(--chat-bot-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    border-bottom-left-radius: 4px;
    max-width: 75%;
}

.typing-indicator.show {
    display: flex;
    gap: 10px;
    align-items: center;
}

.status-icon {
    font-size: 16px;
    flex-shrink: 0;
    animation: pulse 1.5s ease-in-out infinite;
}

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

.thinking-text {
    font-size: 14px;
    color: var(--text-secondary);
    opacity: 0;
    animation: fadeInText 0.3s ease forwards;
    transition: opacity 0.15s ease-in-out;
    min-width: 150px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@keyframes fadeInText {
    to { opacity: 1; }
}

.typing-dots {
    display: flex;
    gap: 4px;
    align-items: center;
}

.typing-dot {
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.4;
    }
    30% {
        transform: translateY(-6px);
        opacity: 1;
    }
}

/* Mobile: Typing indicator responsive */
@media (max-width: 600px) {
    .typing-indicator {
        padding: 10px 14px;
        max-width: 85%;
    }
    .thinking-text {
        font-size: 13px;
        min-width: 120px;
    }
    .status-icon {
        font-size: 14px;
    }
}

@media (max-width: 400px) {
    .typing-indicator {
        padding: 8px 12px;
        gap: 8px;
    }
    .thinking-text {
        font-size: 12px;
        min-width: 100px;
    }
}

.stats {
    padding: 12px 30px;
    background: var(--section-bg);
    border-top: 1px solid var(--border-color);
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.stat-icon {
    color: var(--primary-color);
}

/* Welcome Message */
.welcome-message {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

.welcome-message h2 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 24px;
}

.welcome-message p {
    font-size: 14px;
    line-height: 1.6;
}

/* ============================================ */
/* Voice Recording Styles                       */
/* ============================================ */

/* Voice Button */
.voice-btn {
    background: var(--input-bg);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: relative;
}

.voice-btn:hover:not(:disabled) {
    background: var(--section-bg);
    border-color: var(--primary-color);
    transform: scale(1.05);
    color: var(--primary-color);
}

.voice-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Recording State */
.voice-btn.recording {
    background: linear-gradient(135deg, var(--error-color), #d32f2f);
    color: white;
    border-color: var(--error-color);
    animation: voicePulse 1.5s infinite;
}

@keyframes voicePulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(244, 67, 54, 0.7);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(244, 67, 54, 0);
    }
}

/* Processing State (Spinner) */
.voice-btn.processing {
    background: var(--warning-color);
    color: white;
    border-color: var(--warning-color);
    pointer-events: none;
}

.voice-btn.processing::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Voice Response Player */
.voice-response-player {
    width: 100%;
    max-width: 350px;
    margin-top: 10px;
    border-radius: 8px;
    background: var(--input-bg);
}

/* Input-Area Layout */
.input-area {
    display: flex;
    gap: 8px;
    align-items: center;
}

/* Send-Button same size as Voice-Button */
.send-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    padding: 0;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* Voice Status Indicator */
.voice-status-indicator {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 13px;
    color: var(--text-secondary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: var(--z-modal);
}

.voice-status-indicator.show {
    opacity: 1;
}

.voice-status-indicator.recording {
    border-color: var(--error-color);
    color: var(--error-color);
}

.voice-status-indicator.processing {
    border-color: var(--warning-color);
    color: var(--warning-color);
}

.voice-status-indicator.success {
    border-color: var(--success-color);
    color: var(--success-color);
}

.voice-status-indicator.error {
    border-color: var(--error-color);
    color: var(--error-color);
}

/* Mobile */
@media (max-width: 600px) {
    .input-area {
        padding: 12px 10px;
        gap: 8px;
        padding-bottom: calc(12px + env(safe-area-inset-bottom));
    }

    .input-field {
        padding: 12px 14px;
        font-size: 14px;
        min-width: 0;
    }

    .voice-btn,
    .send-btn {
        width: 40px;
        height: 40px;
        min-width: 40px;
        flex-shrink: 0;
        font-size: 18px;
    }

    .voice-status-indicator {
        bottom: 70px;
        font-size: 12px;
        padding: 6px 12px;
    }

    .voice-response-player {
        max-width: 100%;
    }
}

/* Extra small screens */
@media (max-width: 400px) {
    .input-area {
        padding: 10px 8px;
        gap: 6px;
    }

    .voice-btn,
    .send-btn {
        width: 36px;
        height: 36px;
        min-width: 36px;
        font-size: 16px;
    }

    .input-field {
        padding: 10px 12px;
        font-size: 14px;
    }
}

@media (max-width: 900px) {
    .layout {
        flex-direction: column;
        height: calc(100dvh - 140px);
    }
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100dvh;
        width: min(320px, 88vw);
        border-radius: 0 16px 16px 0;
        transform: translateX(-100%);
        transition: transform 0.22s ease;
        z-index: calc(var(--z-dropdown) + 1);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .session-list {
        flex-direction: column;
        overflow-x: hidden;
        overflow-y: auto;
    }
    .session-item {
        min-width: 0;
    }
    .container {
        height: 100%;
        max-width: none;
    }
    .sessions-toggle-btn {
        display: inline-flex;
    }
    .sidebar-close-btn {
        display: inline-flex;
    }
    body.sidebar-open {
        overflow: hidden;
    }
}