styles/main.css

/*
   ELYSIA CODE COMPANION v1.2.2 - Main Styles
   The Elysia Suite - Dark, Elegant, Professional
   Built by Elysia Suite 💎
*/

/* ========================================
   CSS VARIABLES
   ======================================== */
:root {
    /* Backgrounds */
    --bg-primary: #0a0a0f;
    --bg-secondary: #15151f;
    --bg-tertiary: #1a1a2e;
    --bg-hover: #20203a;
    --bg-active: #2a2a4a;

    /* Gradients (Elysia Signature) */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-blue: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);

    /* Text */
    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b8;
    --text-tertiary: #6a6a88;

    /* Accents */
    --accent-purple: #a78bfa;
    --accent-blue: #60a5fa;
    --accent-pink: #f472b6;
    --accent-green: #34d399;

    /* Semantic */
    --success: #34d399;
    --error: #f87171;
    --warning: #fbbf24;
    --info: #60a5fa;

    /* Borders & Shadows */
    --border-color: #2a2a4a;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);

    /* Fonts */
    --font-mono: "JetBrains Mono", monospace;
    --font-sans: "Space Grotesk", sans-serif;
}

/* Darker Theme — True Black / OLED 🌙 */
body[data-theme="darker"] {
    /* True black backgrounds */
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #121212;
    --bg-hover: #1a1a1a;
    --bg-active: #222222;

    /* Subtle borders */
    --border-color: #1f1f1f;

    /* Slightly muted text for contrast */
    --text-primary: #e8e8e8;
    --text-secondary: #888888;
    --text-tertiary: #555555;

    /* Deeper shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.6);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.7);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.8);
}

/* Darker theme specific overrides for true black feel */
body[data-theme="darker"] .app-header {
    background: #000000;
    border-bottom: 1px solid #1f1f1f;
}

body[data-theme="darker"] .sidebar-left,
body[data-theme="darker"] .sidebar-right {
    background: #0a0a0a;
}

body[data-theme="darker"] .chat-area {
    background: #000000;
}

body[data-theme="darker"] .message.assistant {
    background: #121212;
}

body[data-theme="darker"] .modal-content {
    background: #0a0a0a;
    border: 1px solid #1f1f1f;
}

body[data-theme="darker"] .app-footer {
    background: #000000;
    border-top: 1px solid #1f1f1f;
}

/* Light Theme — Elegant & Soft 💜 */
body[data-theme="light"] {
    /* Backgrounds */
    --bg-primary: #f8f9fc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f0f1f5;
    --bg-hover: #e8e9f0;
    --bg-active: #dddee8;

    /* Text */
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a68;
    --text-tertiary: #7a7a98;

    /* Accents — Keep purple but adjust for light bg */
    --accent-purple: #7c3aed;
    --accent-blue: #3b82f6;
    --accent-pink: #ec4899;
    --accent-green: #10b981;

    /* Semantic */
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;

    /* Borders & Shadows */
    --border-color: #e0e1e8;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);

    /* Gradients — Lighter versions */
    --gradient-primary: linear-gradient(135deg, #818cf8 0%, #a78bfa 100%);
}

/* Light theme specific overrides */
body[data-theme="light"] .app-header {
    background: #ffffff;
    border-bottom: 1px solid #e0e1e8;
}

body[data-theme="light"] .sidebar-left,
body[data-theme="light"] .sidebar-right {
    background: #ffffff;
}

body[data-theme="light"] .btn-primary {
    background: var(--gradient-primary);
    color: #ffffff;
}

body[data-theme="light"] .btn-primary:hover {
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.3);
}

body[data-theme="light"] .message.assistant {
    background: #f0f1f5;
    color: #1a1a2e;
}

body[data-theme="light"] .message.assistant .message-author,
body[data-theme="light"] .message.assistant .message-time {
    color: #4a4a68;
}

body[data-theme="light"] .message.user .message-content {
    background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
    color: #ffffff;
    border-left-color: #5b21b6;
}

body[data-theme="light"] .message.user .message-author {
    color: #7c3aed;
}

body[data-theme="light"] .message.user .message-time {
    color: #6d28d9;
}

body[data-theme="light"] .message.user .message-content code {
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
}

body[data-theme="light"] .modal-content {
    background: #ffffff;
    border: 1px solid #e0e1e8;
}

body[data-theme="light"] .file-item:hover {
    background: #e8e9f0;
}

body[data-theme="light"] .file-item.selected {
    background: #dddee8;
    border-left-color: #7c3aed;
}

body[data-theme="light"] input,
body[data-theme="light"] select,
body[data-theme="light"] textarea {
    background: #f8f9fc;
    border-color: #e0e1e8;
    color: #1a1a2e;
}

body[data-theme="light"] input:focus,
body[data-theme="light"] select:focus,
body[data-theme="light"] textarea:focus {
    border-color: #7c3aed;
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

body[data-theme="light"] .toast {
    background: #ffffff;
    border: 1px solid #e0e1e8;
    color: #1a1a2e;
}

body[data-theme="light"] .app-footer {
    background: #ffffff;
    border-top: 1px solid #e0e1e8;
}

body[data-theme="light"] code,
body[data-theme="light"] pre {
    background: #f0f1f5;
}

body[data-theme="light"] .empty-state {
    color: #4a4a68;
}

body[data-theme="light"] .chat-input-container {
    background: #ffffff;
    border-top: 1px solid #e0e1e8;
}

body[data-theme="light"] #chat-input {
    background: #f8f9fc;
}

/* Drag & Drop Overlay */
body.drag-over::before {
    content: "📁 Drop folder here to analyze";
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(103, 126, 234, 0.2);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-purple);
    z-index: 9999;
    border: 4px dashed var(--accent-purple);
    animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
    0%,
    100% {
        opacity: 0.8;
    }
    50% {
        opacity: 1;
    }
}

/* ========================================
   RESET & BASE
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow: hidden;
    /* Smooth transitions for theme changes */
    transition:
        background-color 0.3s ease,
        color 0.3s ease;
}

code,
pre {
    font-family: var(--font-mono);
}

a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--accent-purple);
}

/* ========================================
   LAYOUT
   ======================================== */
#app {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.app-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-hamburger {
    font-size: 1.25rem;
    padding: 0.5rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    transition: all 0.2s;
}

.btn-hamburger:hover {
    background: var(--accent-purple);
    transform: scale(1.05);
}

.btn-hamburger.active {
    background: var(--accent-purple);
    box-shadow: 0 0 10px rgba(167, 139, 250, 0.4);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo .icon {
    font-size: 1.8rem;
}

.version {
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
    background: var(--gradient-primary);
    border-radius: 4px;
    font-weight: 400;
}

.tagline {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.header-actions {
    display: flex;
    gap: 0.5rem;
}

.main-container {
    display: grid;
    grid-template-columns: 280px 1fr 450px;
    gap: 0;
    flex: 1;
    min-height: 0;
    overflow: hidden;
    transition: grid-template-columns 0.3s ease; /* Smooth grid transition */
}

/* Dynamic grid based on sidebar visibility */
.main-container:has(.sidebar-left.hidden):has(.sidebar-right.hidden) {
    grid-template-columns: 0 1fr 0; /* Both hidden: chat takes full width */
}

.main-container:has(.sidebar-left.hidden):not(:has(.sidebar-right.hidden)) {
    grid-template-columns: 0 1fr 450px; /* Left hidden: chat expands left */
}

.main-container:not(:has(.sidebar-left.hidden)):has(.sidebar-right.hidden) {
    grid-template-columns: 300px 1fr 0; /* Right hidden: chat expands right */
}

.app-footer {
    flex-shrink: 0;
}

/* ========================================
   SIDEBARS
   ======================================== */
.sidebar-left,
.sidebar-right {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    transition:
        transform 0.3s ease,
        opacity 0.3s ease,
        width 0.3s ease;
}

.sidebar-left {
    width: 280px;
    min-width: 280px;
}

.sidebar-right {
    width: 450px;
    min-width: 450px;
    border-right: none;
    border-left: 1px solid var(--border-color);
}

/* Hidden state for sidebars */
.sidebar-left.hidden {
    width: 0;
    min-width: 0;
    padding: 0;
    overflow: hidden;
    border: none;
}

.sidebar-right.hidden {
    width: 0;
    min-width: 0;
    padding: 0;
    overflow: hidden;
    border: none;
}

/* Mobile overlay for sidebars */
@media (max-width: 900px) {
    .sidebar-left,
    .sidebar-right {
        position: fixed;
        top: 70px;
        bottom: 0;
        z-index: 100;
        box-shadow: var(--shadow-lg);
    }

    .sidebar-left {
        left: 0;
        transform: translateX(-100%);
    }

    .sidebar-right {
        right: 0;
        transform: translateX(100%);
    }

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

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

    /* Overlay backdrop */
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 99;
    }

    .sidebar-overlay.active {
        display: block;
    }
}

/* Desktop: sidebars visible by default */
@media (min-width: 901px) {
    .sidebar-left:not(.hidden),
    .sidebar-right:not(.hidden) {
        transform: none;
    }
}

.sidebar-section {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.section-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Folder Actions */
.folder-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.folder-info {
    background: var(--bg-tertiary);
    padding: 0.75rem;
    border-radius: 6px;
    margin-bottom: 1rem;
}

.info-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.info-row:last-child {
    margin-bottom: 0;
}

.info-row .label {
    color: var(--text-secondary);
}

.info-row .value {
    color: var(--text-primary);
    font-family: var(--font-mono);
}

/* Search Box */
.search-box {
    margin-bottom: 1rem;
}

.search-box input {
    width: 100%;
    padding: 0.5rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.search-box input:focus {
    outline: none;
    border-color: var(--accent-purple);
}

/* File Tree */
.file-tree {
    flex: 1;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.tree-item {
    padding: 0.4rem 0.5rem;
    cursor: pointer;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background 0.2s;
}

.tree-item:hover {
    background: var(--bg-hover);
}

.tree-item.active {
    background: var(--bg-active);
    color: var(--accent-purple);
}

.tree-item .icon {
    font-size: 1rem;
}

.tree-folder-header {
    cursor: pointer;
    font-weight: 600;
    user-select: none;
}

.tree-folder-header:hover {
    background: var(--bg-hover);
}

.tree-folder {
    font-weight: 600;
}

.tree-children {
    margin-left: 1.5rem;
    border-left: 1px solid var(--border-color);
    padding-left: 0.5rem;
}

/* ========================================
   CHAT AREA
   ======================================== */
.chat-area {
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    height: 100%;
    min-height: 0;
    overflow: hidden;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    min-height: 0;
}

/* Messages */
.message {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    animation: fadeIn 0.3s ease;
}

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

.message-content {
    background: var(--bg-secondary);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    border-left: 3px solid var(--accent-purple);
}

.message.user .message-content {
    background: var(--bg-tertiary);
    border-left-color: var(--accent-blue);
}

.message.system .message-content {
    border-left-color: var(--accent-green);
}

.message.error .message-content {
    border-left-color: var(--error);
}

.message-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.message-author {
    font-weight: 600;
    color: var(--accent-purple);
}

.message.user .message-author {
    color: var(--accent-blue);
}

.message-time {
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.message-content h3 {
    margin-bottom: 0.75rem;
    color: var(--accent-purple);
}

.message-content h4 {
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    color: var(--accent-blue);
}

.message-content ul,
.message-content ol {
    margin-left: 1.5rem;
    margin-bottom: 0.75rem;
}

.message-content li {
    margin-bottom: 0.5rem;
}

.message-content code {
    background: var(--bg-tertiary);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.875rem;
    color: var(--accent-pink);
}

.message-content pre {
    background: var(--bg-tertiary);
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 0.75rem 0;
    position: relative; /* For copy button positioning */
}

.code-copy-btn {
    opacity: 0;
    transition: opacity 0.2s;
}

.message-content pre:hover .code-copy-btn {
    opacity: 1;
}

.message-content pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
}

.commands-list {
    list-style: none;
    margin-left: 0;
}

.commands-list li {
    padding: 0.5rem;
    background: var(--bg-tertiary);
    border-radius: 6px;
    margin-bottom: 0.5rem;
}

.tip {
    background: var(--bg-tertiary);
    padding: 0.75rem;
    border-radius: 6px;
    border-left: 3px solid var(--info);
    margin-top: 1rem;
}

/* Chat Input */
.chat-input-container {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 1rem;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: flex-end;
}

/* Mobile: adjust for smaller screens */
@media (max-width: 600px) {
    .input-wrapper {
        /* Keep relative positioning on mobile too */
    }

    .btn-send,
    .btn-cancel {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }
}

#chat-input {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.875rem 1rem;
    padding-right: 4.5rem; /* Space for the button inside */
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    resize: none;
    transition:
        border-color 0.2s,
        box-shadow 0.2s;
}

#chat-input:focus {
    outline: none;
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.15);
}

.input-info {
    display: flex;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-top: 0.5rem;
}

.separator {
    color: var(--border-color);
}

/* ========================================
   BUTTONS
   ======================================== */
button {
    font-family: var(--font-sans);
    cursor: pointer;
    border: none;
    border-radius: 6px;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

/* ========================================
   LOADING OVERLAY
   ======================================== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    backdrop-filter: blur(4px);
}

.loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--bg-tertiary);
    border-top-color: var(--accent-purple);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-spinner p {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
}

/* Make tree items focusable */
.tree-item[data-path] {
    cursor: pointer;
    outline: none;
    user-select: none;
}

.tree-item[data-path]:focus {
    outline: 2px solid var(--accent-purple);
    outline-offset: -2px;
}

.btn-primary:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-hover);
}

.btn-danger {
    background: var(--error);
    color: white;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
}

.btn-danger:hover {
    background: #ef4444;
}

.btn-icon {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 0.5rem 0.75rem;
    font-size: 1.2rem;
    border: 1px solid var(--border-color);
}

.btn-icon:hover {
    background: var(--bg-hover);
    border-color: var(--accent-purple);
}

.btn-send {
    position: absolute;
    right: 0.5rem;
    bottom: 0.5rem;
    background: var(--gradient-primary);
    color: white;
    padding: 0.5rem 1rem;
    font-weight: 600;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.btn-send:hover:not(:disabled) {
    transform: scale(1.05);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.btn-send:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

.btn-cancel {
    position: absolute;
    right: 0.5rem;
    bottom: 0.5rem;
    background: var(--error);
    color: white;
    padding: 0.5rem 1rem;
    font-weight: 600;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.btn-cancel:hover {
    background: #ef4444;
    transform: scale(1.02);
}

/* ========================================
   MODALS
   ======================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
}

.modal-large {
    max-width: 900px;
}

.modal-fullscreen {
    width: 95vw;
    max-width: none;
    height: 90vh;
    max-height: none;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header .header-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.modal-header .header-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.file-info-badge {
    background: var(--bg-tertiary);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

.modal-header h2 {
    font-size: 1.25rem;
}

.modal-close {
    background: none;
    color: var(--text-secondary);
    font-size: 2rem;
    padding: 0;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    color: var(--error);
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* ========================================
   FORM ELEMENTS
   ======================================== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group select {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-purple);
}

.form-group small {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.form-group input[type="checkbox"] {
    margin-right: 0.5rem;
}

/* Input with toggle button (for API key visibility) */
.input-with-toggle {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.input-with-toggle input {
    flex: 1;
}

.btn-icon-sm {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 0.5rem;
    font-size: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-icon-sm:hover {
    background: var(--bg-hover);
    border-color: var(--accent-purple);
}

/* ========================================
   FILE PREVIEW
   ======================================== */
.file-preview {
    background: var(--bg-tertiary);
    border-radius: 8px;
    padding: 1rem;
    overflow-y: auto;
    max-height: calc(100vh - 200px);
}

.file-preview pre {
    margin: 0;
    font-size: 0.85rem;
}

.preview-header {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.preview-filename {
    font-family: var(--font-mono);
    color: var(--accent-purple);
    font-weight: 600;
    font-size: 0.9rem;
    word-break: break-all;
    line-height: 1.4;
}

.preview-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* ========================================
   EMPTY STATES
   ======================================== */
.empty-state {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-tertiary);
}

.empty-state p {
    margin-bottom: 0.5rem;
}

.empty-state .hint {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

/* ========================================
   TOAST NOTIFICATIONS
   ======================================== */
#toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.toast {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem 1.5rem;
    min-width: 300px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.success {
    border-left: 4px solid var(--success);
}

.toast.error {
    border-left: 4px solid var(--error);
}

.toast.warning {
    border-left: 4px solid var(--warning);
}

.toast.info {
    border-left: 4px solid var(--info);
}

.toast-icon {
    font-size: 1.5rem;
}

.toast-message {
    flex: 1;
}

.toast-close {
    background: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    padding: 0;
    width: 1.5rem;
    height: 1.5rem;
}

/* ========================================
   CODE VIEWER & ARTIFACTS
   ======================================== */
.modal-body-viewer {
    padding: 0;
    background: var(--bg-tertiary);
}

.viewer-content {
    height: 100%;
    overflow: auto;
    padding: 1.5rem;
}

.viewer-content pre {
    margin: 0;
    height: 100%;
}

.viewer-content code {
    font-size: 0.9rem;
    line-height: 1.6;
}

.modal-body-artifact {
    padding: 0;
    background: white;
}

#artifact-iframe {
    width: 100%;
    height: 100%;
    border: none;
    background: white;
}

/* ========================================
   SCROLLBAR
   ======================================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

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

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-purple);
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
    .main-container {
        grid-template-columns: 250px 1fr;
    }
}

@media (max-width: 900px) {
    .main-container {
        grid-template-columns: 1fr;
    }

    .app-header {
        padding: 0.75rem 1rem;
    }

    .header-content .tagline {
        display: none;
    }

    .logo {
        font-size: 1.1rem;
    }

    .logo .version {
        display: none;
    }
}

@media (max-width: 480px) {
    .logo span:not(.icon) {
        font-size: 0.95rem;
    }

    .header-actions {
        gap: 0.25rem;
    }

    .btn-icon {
        padding: 0.4rem;
        font-size: 1rem;
    }
}

/* ========================================
   FOOTER
   ======================================== */
/* Note: flex-shrink: 0 is set in LAYOUT section above */

.app-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.app-footer a {
    color: var(--accent-purple);
    text-decoration: none;
    transition: color 0.2s ease;
}

.app-footer a:hover {
    color: var(--accent-pink);
}

.app-footer .divider {
    margin: 0 0.5rem;
    color: var(--text-tertiary);
}

/* ========================================
   ABOUT MODAL
   ======================================== */
.about-section {
    margin-bottom: 1.5rem;
}

.about-section h3 {
    color: var(--accent-purple);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.about-section p {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.about-section ul {
    list-style: none;
    padding: 0;
}

.about-section ul li {
    padding: 0.25rem 0;
}

.about-section a {
    color: var(--accent-blue);
    text-decoration: none;
}

.about-section a:hover {
    text-decoration: underline;
}

.family-list li {
    padding: 0.5rem 0;
}

.about-quote {
    text-align: center;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: 0.5rem;
    margin: 1rem 0;
    border-left: 3px solid var(--accent-purple);
}

.about-quote p {
    margin: 0;
    color: var(--text-secondary);
}

.about-footer {
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-tertiary);
    font-size: 0.875rem;
}