/* Dark Modern Theme - Inspired by Pulse8.AI Design */

/* Import modern fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* CSS Custom Properties for the theme */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a24;
    --bg-gradient: linear-gradient(135deg, #1a1a24 0%, #2d1b4e 50%, #4a1b5c 100%);
    --text-primary: #ffffff;
    --text-secondary: #b4b4b4;
    --text-accent: #e0e0e0;
    --accent-purple: #8b5cf6;
    --accent-pink: #ec4899;
    --accent-orange: #f97316;
    --border-color: #2a2a35;
    --shadow-primary: 0 4px 20px rgba(139, 92, 246, 0.1);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Base styles */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    background-image: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

/* Container and layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1rem 0 1rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    overflow: hidden;
}

.card-body {
    padding: 2rem;
}

/* Header section */
.header-section {
    margin-bottom: 2rem;
    position: relative;
}

.header-layout {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    position: relative;
    min-height: 140px;
    width: 100%;
}

.logomark-right {
    position: absolute;
    right: 0;
    top: 1rem;
}

.logomark {
    height: 100px;
    width: auto;
    filter: drop-shadow(0 4px 12px rgba(139, 92, 246, 0.3));
}

.main-branding {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.pulse8-logo {
    height: 70px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.95;
    display: block;
}

.prototype-title {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    font-size: 1.5rem;
    color: var(--text-secondary);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin: 0;
}

/* Chat container */
.chat-container {
    height: 600px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    overflow-y: auto;
    margin-bottom: 2rem;
    position: relative;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

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

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

.chat-container::-webkit-scrollbar-thumb {
    background: var(--accent-purple);
    border-radius: 4px;
}

.chat-container::-webkit-scrollbar-thumb:hover {
    background: var(--accent-pink);
}

/* Message styles */
.message-container {
    position: relative;
    margin: 1.5rem 0;
    padding: 1.5rem;
    border-radius: 16px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.user-message {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(236, 72, 153, 0.15) 100%);
    border: 1px solid rgba(139, 92, 246, 0.2);
    margin-left: 15%;
    box-shadow: 0 4px 16px rgba(139, 92, 246, 0.1);
}

.assistant-message {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    margin-right: 15%;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.message {
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 0.95rem;
    margin: 0;
}

/* Input group */
.input-group {
    display: flex;
    gap: 1rem;
    align-items: stretch;
    flex-direction: column;
}

/* Model Selector */
.model-selector-row {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 0.5rem;
}

.model-selector-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.model-selector-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    margin: 0;
    white-space: nowrap;
}

.model-selector {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
    min-width: 160px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.model-selector:focus {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.1);
    color: var(--text-primary);
    outline: none;
}

.model-selector option {
    background: var(--bg-card);
    color: var(--text-primary);
}

.input-row {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    width: 100%;
}

.form-control {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    padding: 1rem 1.5rem;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    resize: none;
    min-height: 50px;
    max-height: 120px;
    overflow-y: auto;
    font-family: inherit;
    line-height: 1.4;
}

.form-control::-webkit-scrollbar {
    width: 6px;
}

.form-control::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
}

.form-control::-webkit-scrollbar-thumb {
    background: var(--accent-purple);
    border-radius: 3px;
}

.form-control::-webkit-scrollbar-thumb:hover {
    background: var(--accent-pink);
}

.form-control:focus {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
    color: var(--text-primary);
    outline: none;
}

.form-control::placeholder {
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    border-radius: 12px;
    padding: 1.2rem 2.5rem;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    min-width: 120px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-purple) 0%, var(--accent-pink) 100%);
    color: white;
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(139, 92, 246, 0.2);
    background: linear-gradient(135deg, #9333ea 0%, #db2777 100%);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(255, 255, 255, 0.1);
}

/* Footer branding - Outside card */
.footer-branding {
    padding-top: 0;
    padding-bottom: 0;
    margin-top: 0;
    text-align: left;
}

.synpulse-footer-logo {
    height: 250px;
    width: auto;
    opacity: 0.9;
    transition: opacity 0.3s ease;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3));
}

.synpulse-footer-logo:hover {
    opacity: 1;
}

/* Tool-related styles */
.tool-status {
    font-style: italic;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 0.5rem;
    min-height: 1.2em;
}

.error-message {
    color: #ef4444;
    font-weight: 500;
    margin-top: 0.5rem;
}

.action-button {
    position: absolute;
    right: 1rem;
    top: 1rem;
    padding: 0.5rem 1rem;
    background: rgba(139, 92, 246, 0.2);
    color: var(--text-primary);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 8px;
    font-size: 0.8rem;
    transition: all 0.2s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.action-button:hover {
    background: rgba(139, 92, 246, 0.3);
    border-color: rgba(139, 92, 246, 0.5);
}

/* Tool output styles */
.tool-button-container {
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1rem;
    min-height: 2.5rem;
}

.tool-toggle-btn {
    display: inline-block;
    margin-right: 0.5rem;
    padding: 0.4rem 0.8rem;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.8rem;
    cursor: pointer;
    font-family: inherit;
    text-decoration: none;
    transition: all 0.2s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.tool-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--accent-purple);
    color: var(--text-primary);
}

.tool-toggle-btn:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.2);
}

.tool-output-container {
    margin-top: 1rem;
}

.visible-content, .hidden-content {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    margin-top: 1rem;
    font-family: 'SF Mono', 'Monaco', 'Cascadia Code', 'Roboto Mono', monospace;
    font-size: 0.85rem;
    white-space: pre-wrap;
    word-wrap: break-word;
    max-height: 300px;
    overflow-y: auto;
    color: var(--text-accent);
}

.hidden-content {
    display: none;
}

.visible-content {
    display: block;
}

/* Markdown styles */
.message h1, .message h2, .message h3, .message h4, .message h5, .message h6 {
    color: var(--text-primary);
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    font-weight: 600;
}

.message p {
    margin-top: 0;
    margin-bottom: 1em;
}

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

.message ul, .message ol {
    padding-left: 1.5rem;
    margin-top: 0;
    margin-bottom: 1em;
}

.message li {
    margin-bottom: 0.5em;
}

.message li p {
    margin-bottom: 0.5em;
}

.message pre {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    padding: 1rem;
    border-radius: 8px;
    white-space: pre-wrap;
    word-wrap: break-word;
    margin-top: 1em;
    margin-bottom: 1em;
    overflow-x: auto;
}

.message code {
    font-size: 0.85em;
    background: rgba(139, 92, 246, 0.1);
    color: var(--accent-purple);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-family: 'SF Mono', 'Monaco', 'Cascadia Code', 'Roboto Mono', monospace;
}

.message pre code {
    background: transparent;
    color: var(--text-accent);
    padding: 0;
    font-size: inherit;
}

.message blockquote {
    border-left: 3px solid var(--accent-purple);
    padding-left: 1rem;
    margin-left: 0;
    margin-right: 0;
    color: var(--text-secondary);
    font-style: italic;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .card-body {
        padding: 2rem 1.5rem;
    }

    .chat-container {
        height: 500px;
        padding: 1.5rem;
    }

    .user-message {
        margin-left: 5%;
    }

    .assistant-message {
        margin-right: 5%;
    }

    .input-group {
        flex-direction: column;
        gap: 0.8rem;
    }

    .header-layout {
        flex-direction: column;
        align-items: center;
        min-height: auto;
        gap: 1.5rem;
    }

    .logomark-right {
        position: static;
        order: -1;
        right: auto;
        top: auto;
    }

    .main-branding {
        padding: 0;
    }

    .logomark {
        height: 80px;
    }

    .pulse8-logo {
        height: 55px;
    }

    .prototype-title {
        font-size: 1.2rem;
    }
}

/* Animation for smooth loading */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card {
    animation: fadeInUp 0.6s ease-out;
}

/* Focus states for accessibility */
.btn:focus-visible {
    outline: 2px solid var(--accent-purple);
    outline-offset: 2px;
}

.form-control:focus-visible {
    outline: 2px solid var(--accent-purple);
    outline-offset: 2px;
}

/* Additional glowing effects for modern feel */
.header-section::before {
    content: '';
    position: absolute;
    top: -50px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: -1;
}

/* === Loading Spinner Styles === */
.loading-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-content {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.loading-content .spinner-border {
    width: 3rem;
    height: 3rem;
    border-width: 0.3em;
}

.loading-content p {
    color: var(--text-light);
    margin-bottom: 0;
    font-size: 1.1rem;
}

/* Login Page Specific Styles */
.min-vh-100 {
    min-height: 100vh;
}

body.min-vh-100 {
    background: var(--bg-gradient);
    margin: 0;
    padding: 0;
}

.row.justify-content-center.align-items-center {
    width: 100%;
    margin: 0;
}

.logomark-login {
    height: 60px;
    width: auto;
    filter: drop-shadow(0 4px 12px rgba(139, 92, 246, 0.3));
    transition: transform 0.3s ease;
}

.pulse8-logo-login {
    height: 50px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.95;
    display: block;
}

.prototype-title-login {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    font-size: 1.2rem;
    color: var(--text-secondary);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin: 0;
}

.form-label {
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

/* Confidentiality Warning Styles */
.confidentiality-warning {
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: 12px;
    padding: 1rem;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.warning-content {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.warning-icon {
    color: #fbbf24;
    font-size: 1.25rem;
    margin-top: 0.125rem;
    flex-shrink: 0;
}

.warning-text h6 {
    color: var(--text-primary);
    font-weight: 600;
    margin: 0;
}

.warning-text p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.4;
    margin: 0;
}

/* Login Footer Branding */
.footer-branding-login {
    margin-top: 2rem;
}

.synpulse-login-logo {
    height: 80px;
    width: auto;
    opacity: 0.7;
    transition: opacity 0.3s ease;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3));
}

.synpulse-login-logo:hover {
    opacity: 0.9;
}

/* Login responsive adjustments */
@media (max-width: 768px) {
    .logomark-login {
        height: 50px;
    }

    .pulse8-logo-login {
        height: 40px;
    }

    .prototype-title-login {
        font-size: 1rem;
    }

    .synpulse-login-logo {
        height: 60px;
    }

    .warning-content {
        flex-direction: column;
        text-align: center;
    }
}

/* PDF Drop Zone Styles */
.pdf-drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    background: rgba(255, 255, 255, 0.02);
    margin-bottom: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    width: 100%;
    box-sizing: border-box;
}

.pdf-drop-zone.dragover {
    border-color: var(--accent-purple);
    background: rgba(139, 92, 246, 0.1);
    border-style: solid;
}

.pdf-drop-zone .drop-zone-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

.pdf-drop-zone.dragover .drop-zone-text {
    color: var(--text-primary);
}

.pdf-file-list {
    margin-top: 0.5rem;
}

.pdf-file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
}

.pdf-file-name {
    color: var(--text-primary);
    flex-grow: 1;
    text-align: left;
}

.pdf-file-remove {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 4px;
    transition: color 0.2s ease;
    font-size: 0.8rem;
}

.pdf-file-remove:hover {
    color: #ef4444;
}

/* Hide file input */
.pdf-file-input {
    display: none;
}

/* Upload Progress Styles */
.upload-progress-container {
    margin: 1rem 0;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.upload-progress-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.upload-file-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-width: 150px;
}

.upload-file-icon {
    color: var(--accent-purple);
    font-size: 1.1rem;
}

.upload-file-name {
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 120px;
}

.upload-progress-bar {
    flex: 1;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.upload-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-purple) 0%, var(--accent-pink) 100%);
    border-radius: 4px;
    width: 0%;
    transition: width 0.3s ease;
    position: relative;
}

.upload-progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.2) 50%, transparent 100%);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.upload-progress-text {
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    min-width: 35px;
    text-align: right;
}

/* PDF Attachment Indicator */
.pdf-attachment-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.75rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    transition: background 0.2s ease;
}

.pdf-attachment-indicator:hover {
    background: rgba(255, 255, 255, 0.15);
}

.pdf-attachment-indicator i {
    color: var(--accent-purple);
    font-size: 0.9rem;
}

.pdf-toggle-icon {
    margin-left: auto;
    transition: transform 0.2s ease;
}

/* PDF File Names List */
.pdf-file-names-list {
    margin-top: 0.5rem;
    padding: 0.75rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    font-size: 0.75rem;
}

.pdf-file-names-list.visible-content {
    display: block;
}

.pdf-file-names-list.hidden-content {
    display: none;
}

.pdf-file-name-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0;
    color: var(--text-accent);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.pdf-file-name-item:last-child {
    border-bottom: none;
}

.pdf-file-name-item i {
    color: var(--accent-purple);
    font-size: 0.8rem;
    flex-shrink: 0;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .input-group {
        flex-direction: column;
        gap: 0.8rem;
    }

    .input-row {
        flex-direction: column;
        gap: 0.8rem;
    }

    .model-selector-row {
        justify-content: center;
        margin-bottom: 1rem;
    }

    .model-selector {
        min-width: 140px;
    }

    .upload-progress-item {
        flex-direction: column;
        gap: 0.5rem;
        align-items: stretch;
    }

    .upload-file-info {
        min-width: auto;
        justify-content: center;
    }

    .upload-file-name {
        max-width: 200px;
    }
}