/* Modern Dark Glassmorphism Design System for AlphaOne AI Web */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg-primary: #0b0f19;
    --bg-secondary: rgba(15, 23, 42, 0.75);
    --bg-tertiary: rgba(30, 41, 59, 0.6);
    --bg-glass: rgba(15, 23, 42, 0.65);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(56, 189, 248, 0.3);
    
    --accent-blue: #38bdf8;
    --accent-indigo: #6366f1;
    --accent-purple: #a855f7;
    --accent-cyan: #06b6d4;
    --accent-emerald: #10b981;
    
    --glow-blue: 0 0 20px rgba(56, 189, 248, 0.25);
    --glow-purple: 0 0 20px rgba(168, 85, 247, 0.25);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    --shadow-main: 0 10px 30px -5px rgba(0, 0, 0, 0.5);
}

h1:focus, h1:focus-visible,
h2:focus, h2:focus-visible,
h3:focus, h3:focus-visible {
    outline: none !important;
    box-shadow: none !important;
}

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

body, html {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    height: 100%;
    width: 100%;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

/* App Container Layout */
.app-layout {
    display: flex;
    height: 100vh;
    width: 100vw;
    position: relative;
    background-color: var(--bg-primary);
    overflow: hidden;
}

/* Sidebar styling (Mobile Drawer & Tablet Split View) */
.sidebar {
    width: 320px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease, transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 100;
    flex-shrink: 0;
    height: 100%;
    backdrop-filter: blur(16px);
}

@media (min-width: 769px) {
    .sidebar.collapsed {
        width: 0 !important;
        min-width: 0 !important;
        border-right: none !important;
        opacity: 0 !important;
        overflow: hidden !important;
        pointer-events: none !important;
    }
}

/* Mobile drawer mode */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        top: 0;
        bottom: 0;
        left: 0;
        transform: translateX(-100%);
        box-shadow: var(--shadow-main);
    }
    .sidebar.open {
        transform: translateX(0);
        opacity: 1 !important;
    }
    .sidebar-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.6);
        backdrop-filter: blur(4px);
        z-index: 90;
    }
}

.sidebar-header {
    padding: 1.25rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-logo {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: bold;
    font-size: 1.1rem;
    box-shadow: var(--glow-blue);
}

.brand-text {
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #fff 30%, var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.new-chat-btn {
    width: 100%;
    margin: 0.5rem 0;
    padding: 0.75rem 1rem;
    background: linear-gradient(135deg, var(--accent-indigo), var(--accent-purple));
    color: #fff !important;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.new-chat-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.4);
}

.conv-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem 0.75rem;
}

.nav-section-title {
    padding: 0.5rem 0.25rem;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.conv-item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.65rem 0.85rem;
    border-radius: var(--radius-md);
    margin-bottom: 0.35rem;
    cursor: pointer;
    color: var(--text-secondary) !important;
    transition: all 0.2s ease;
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
}

.conv-item:hover, .conv-item.active {
    background: var(--bg-tertiary);
    color: #fff !important;
    border: 1px solid var(--border-hover);
}

.conv-item.compact-nav {
    padding: 0.38rem 0.6rem;
    font-size: 0.81rem;
    margin-bottom: 0.15rem;
    border-radius: var(--radius-sm);
    gap: 0.5rem;
}

.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
}

/* Main Area Layout */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    min-width: 0;
    background: radial-gradient(circle at 50% 0%, rgba(56, 189, 248, 0.05), transparent 70%);
}

.top-bar {
    min-height: 60px;
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    z-index: 10;
}

.menu-toggle-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.15rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.35rem;
    border-radius: 6px;
    transition: background 0.2s ease;
}

.menu-toggle-btn:hover {
    background: var(--bg-tertiary);
}

.tier-badge {
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    background: rgba(56, 189, 248, 0.15);
    color: var(--accent-blue);
    border: 1px solid rgba(56, 189, 248, 0.3);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.conv-item.compact-nav {
    padding: 0.22rem 0.6rem !important;
    margin-bottom: 0px !important;
    font-size: 0.81rem !important;
    line-height: 1.25 !important;
    display: flex;
    align-items: center;
    gap: 0.45rem;
}

.page-body-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow-y: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.page-body-container::-webkit-scrollbar {
    display: none;
}

.chat-page-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    height: 100%;
    width: 100%;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.chat-messages::-webkit-scrollbar {
    display: none;
}

/* Message Cards */
.message-card {
    display: flex;
    gap: 1rem;
    max-width: 100%;
    animation: fadeIn 0.3s ease-in-out;
}

.message-card.user {
    align-self: flex-end;
    flex-direction: row-reverse;
    max-width: 88%;
}

.message-card.assistant {
    align-self: flex-start;
    width: 100%;
    max-width: 100%;
}

.avatar {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.avatar.user {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.avatar.assistant {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: #fff;
    box-shadow: var(--glow-purple);
}

.msg-body {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 0.85rem 1.15rem;
    border-radius: var(--radius-lg);
    line-height: 1.6;
    font-size: 0.92rem;
    backdrop-filter: blur(8px);
    flex: 1;
    min-width: 0;
    word-break: break-word;
}

.message-card.user .msg-body {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(168, 85, 247, 0.2));
    border-color: rgba(168, 85, 247, 0.3);
    flex: initial;
}

/* Chat Input Box Container (Resizable Textarea) */
.chat-input-container {
    padding: 1rem 1.5rem;
    background: var(--bg-glass);
    border-top: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
    width: 100%;
}

.chat-input-container > div,
.input-box-wrapper {
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

.input-box-wrapper {
    display: flex;
    align-items: flex-end;
    gap: 0.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 0.5rem 0.75rem;
    transition: border-color 0.2s ease;
}

.input-box-wrapper:focus-within {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.15);
}

.chat-textarea {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.92rem;
    outline: none;
    line-height: 1.5;
}

.icon-action-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.icon-action-btn:hover {
    background: var(--bg-tertiary);
    color: #fff;
}

.send-btn {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: #fff !important;
}

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

.secondary-action-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.4rem 0.85rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.secondary-action-btn:hover {
    color: #fff;
    border-color: var(--accent-blue);
}

.modal-close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    padding: 0.35rem;
    border-radius: 6px;
}

.modal-close-btn:hover {
    background: var(--bg-tertiary);
    color: #fff;
}

.generated-image-container img {
    max-width: 100%;
    border-radius: 12px;
    margin-top: 0.5rem;
    border: 1px solid var(--border-color);
}

/* Modal & Dialog Styling */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    padding: 1rem;
    animation: fadeIn 0.2s ease-in-out;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 520px;
    padding: 1.5rem;
    box-shadow: var(--shadow-main);
    backdrop-filter: blur(16px);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.modal-title {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

.form-input, .form-select {
    width: 100%;
    padding: 0.65rem 0.85rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.88rem;
    outline: none;
    transition: border-color 0.2s ease;
}

.form-input:focus, .form-select:focus {
    border-color: var(--accent-blue);
}

.primary-btn {
    padding: 0.65rem 1.25rem;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.88rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.primary-btn:hover {
    opacity: 0.95;
    transform: translateY(-1px);
}

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

.app-footer {
    padding: 0.65rem 1.25rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-glass);
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Mobile-Friendly Responsive Breakpoints (< 768px) */
@media (max-width: 768px) {
    .top-bar {
        padding: 0.5rem 0.75rem;
        min-height: 52px;
    }

    .active-conv-name {
        max-width: 140px;
    }

    .tier-badge {
        font-size: 0.7rem;
        padding: 0.25rem 0.55rem;
    }

    .chat-messages {
        padding: 0.75rem 0.65rem;
        gap: 0.85rem;
    }

    .message-card {
        max-width: 98% !important;
        gap: 0.5rem;
    }

    .message-card.user {
        max-width: 90% !important;
    }

    .avatar {
        width: 30px;
        height: 30px;
        font-size: 0.75rem;
        border-radius: 8px;
    }

    .msg-body {
        padding: 0.65rem 0.85rem;
        font-size: 0.88rem;
    }

    .chat-input-container {
        padding: 0.5rem 0.65rem;
    }

    .input-box-wrapper {
        padding: 0.35rem 0.5rem;
    }

    .chat-textarea {
        font-size: 0.88rem;
        min-height: 44px;
    }

    .icon-action-btn {
        width: 32px;
        height: 32px;
    }

    .modal-content {
        width: 94vw !important;
        max-width: 94vw !important;
        padding: 1.15rem !important;
        margin: 0 auto;
    }

    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr !important;
    }
}

/* AlphaOne AI - Premium Glassmorphic Thought Accordion CSS */
.glass-accordion {
    background: rgba(30, 30, 40, 0.45);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-left: 3px solid rgba(138, 43, 226, 0.7);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 0.75rem;
    transition: all 0.3s ease;
}

.btn-toggle-thought {
    background: transparent;
    border: none;
    width: 100%;
    text-align: left;
    padding: 8px 12px;
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.btn-toggle-thought:hover {
    color: rgba(255, 255, 255, 0.95);
    background: rgba(255, 255, 255, 0.04);
}

.thought-content-box {
    padding: 8px 12px 12px 12px;
    font-size: 0.82rem;
    line-height: 1.6;
    color: rgba(200, 200, 210, 0.65);
    font-style: italic;
    white-space: pre-wrap;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.animate-fade-in {
    animation: fadeInThought 0.25s ease-out forwards;
}

@keyframes fadeInThought {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Premium Image Studio Glassmorphic Design tokens */
.glass-container {
    background: rgba(20, 20, 30, 0.55);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 24px;
}

.aspect-ratio-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.btn-ratio {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.7);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.82rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-ratio:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.btn-ratio.active {
    background: rgba(99, 102, 241, 0.25);
    border-color: rgba(99, 102, 241, 0.6);
    color: #fff;
    box-shadow: 0 0 12px rgba(99, 102, 241, 0.3);
}

.glass-diagnostic-card {
    background: rgba(217, 119, 6, 0.15);
    border: 1px solid rgba(217, 119, 6, 0.3);
    color: #fbbf24;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.82rem;
}

.bg-dark-glass {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.05);
    color: #fff;
}

/* AlphaOne AI - Premium Glassmorphic Terminal View Styles */
.glass-workspace {
    background: rgba(15, 15, 25, 0.6);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
}

.glass-input {
    background: rgba(255, 255, 255, 0.02) !important;
    border: 1px solid rgba(255, 255, 255, 0.08) !important;
    color: #fff !important;
    border-radius: 10px;
    font-size: 0.9rem;
    font-family: inherit;
}

.btn-purple-glow {
    background: linear-gradient(135deg, rgba(138, 43, 226, 0.8), rgba(99, 102, 241, 0.8));
    color: #fff;
    border: none;
    transition: all 0.3s ease;
}

.btn-purple-glow:hover:not(:disabled) {
    box-shadow: 0 0 20px rgba(138, 43, 226, 0.5);
    transform: translateY(-1px);
}

.bg-purple-glass {
    background: rgba(138, 43, 226, 0.18);
    border: 1px solid rgba(138, 43, 226, 0.4);
    color: #c084fc;
    padding: 4px 10px;
    border-radius: 6px;
}

.glass-terminal-viewport {
    background: rgba(5, 5, 10, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-top: 4px solid rgba(138, 43, 226, 0.85);
    border-radius: 10px;
    padding: 16px;
    max-height: 280px;
    overflow-y: auto;
    font-family: 'Consolas', 'Courier New', Courier, monospace;
    font-size: 0.82rem;
    color: #4ade80;
    box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.6);
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.glass-terminal-viewport::-webkit-scrollbar {
    display: none;
}

.terminal-line {
    margin-bottom: 6px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.02);
    padding-bottom: 4px;
    line-height: 1.5;
}

.glass-result-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
}

.animate-slide-left {
    animation: slideLeft 0.3s ease-out forwards;
}

@keyframes slideLeft {
    from { opacity: 0; transform: translateX(8px); }
    to { opacity: 1; transform: translateX(0); }
}