:root {
    /* Safe, accessible color palette */
    --font-family: 'Outfit', sans-serif;

    /* Light Theme */
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --accent-color: #2563eb;
    /* Royal Blue */
    --accent-hover: #1d4ed8;
    --border-color: #e5e7eb;
    --nav-bg: rgba(255, 255, 255, 0.8);
    --nav-border: rgba(229, 231, 235, 0.5);

    --success: #10b981;
    --danger: #ef4444;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] {
    /* Dark Theme */
    --bg-color: #0f172a;
    /* Slate 900 */
    --card-bg: #1e293b;
    /* Slate 800 */
    --text-primary: #f8fafc;
    /* Slate 50 */
    --text-secondary: #94a3b8;
    /* Slate 400 */
    --accent-color: #3b82f6;
    /* Blue 500 */
    --accent-hover: #60a5fa;
    --border-color: #334155;
    --nav-bg: rgba(15, 23, 42, 0.8);
    --nav-border: rgba(51, 65, 85, 0.5);
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
    min-height: 100vh;
}

.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--nav-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--nav-border);
    margin-bottom: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-text {
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
}

.live-indicator {
    font-size: 0.75rem;
    color: var(--danger);
    font-weight: 600;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }

    100% {
        opacity: 1;
    }
}

.nav-controls {
    display: flex;
    align-items: center;
    align-items: center;
    gap: 1.5rem;
}

#create-factor-btn {
    font-size: 0.9rem;
    /* Slightly smaller for navbar? Or keep large? User asked for large. */
    /* Let's keep the primary-btn class styles but maybe adjust margin */
    white-space: nowrap;
}

/* Theme Toggle */
.icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-primary);
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.sun-icon {
    display: none;
}

.moon-icon {
    display: block;
}

[data-theme="dark"] .sun-icon {
    display: block;
}

[data-theme="dark"] .moon-icon {
    display: none;
}

/* Content */
.hero {
    text-align: center;
    margin-bottom: 3rem;
    padding: 3rem 0;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    color: var(--text-secondary);
    font-size: 1.25rem;
}

.highlight {
    color: var(--accent-color);
    -webkit-text-fill-color: var(--accent-color);
}

/* View Controls */
.view-controls {
    display: flex;
    gap: 0.5rem;
    margin-right: 1rem;
    border-right: 1px solid var(--nav-border);
    padding-right: 1rem;
}

.icon-btn.active {
    background-color: var(--border-color);
    color: var(--accent-color);
}

.sort-control {
    display: flex;
    align-items: center;
    margin-left: 0.5rem;
}

.nav-select {
    padding: 0.4rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.875rem;
    cursor: pointer;
}

.nav-select:focus {
    outline: none;
    border-color: var(--accent-color);
}

/* Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding-bottom: 4rem;
}

/* List View */
.grid.list-view {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.grid.list-view .card {
    display: flex;
    flex-direction: column;
    padding: 1rem;
}

.grid.list-view .card-header {
    margin-bottom: 0.5rem;
}

.card {
    background-color: var(--card-bg);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.header-text {
    display: flex;
    flex-direction: column;
}

.subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.card h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.trend {
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
}

.trend.up {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.trend.down {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.chart-placeholder {
    height: 150px;
    background: linear-gradient(90deg, var(--bg-color) 0%, var(--border-color) 50%, var(--bg-color) 100%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
    border-radius: 8px;
    opacity: 0.5;
}

/* Tickers & Expand */
.expand-btn {
    background: none;
    border: none;
    color: var(--accent-color);
    font-size: 0.875rem;
    cursor: pointer;
    margin-top: 1rem;
    padding: 0;
    font-weight: 500;
}

.expand-btn:hover {
    text-decoration: underline;
}

.tickers-section {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.tickers-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    max-height: 150px;
    overflow-y: auto;
}

body.hide-constituents .tickers-section {
    display: none !important;
}

body.hide-constituents .expand-btn {
    display: none !important;
}

.ticker-tag {
    background: var(--bg-color);
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-size: 0.75rem;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    font-family: inherit;
    font-weight: 500;
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

.hidden {
    display: none !important;
}

/* Profile */
#user-profile {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

#logout-btn {
    background: none;
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    border-right: 1px solid var(--nav-border);
    padding-right: 1rem;
}

.icon-btn.active {
    background-color: var(--border-color);
    color: var(--accent-color);
}

.sort-control {
    display: flex;
    align-items: center;
    margin-left: 0.5rem;
}

.nav-select {
    padding: 0.4rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.875rem;
    cursor: pointer;
}

.nav-select:focus {
    outline: none;
    border-color: var(--accent-color);
}

/* Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding-bottom: 4rem;
}

/* List View */
.grid.list-view {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.grid.list-view .card {
    display: flex;
    flex-direction: column;
    padding: 1rem;
}

.grid.list-view .card-header {
    margin-bottom: 0.5rem;
}

.card {
    background-color: var(--card-bg);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.header-text {
    display: flex;
    flex-direction: column;
}

.subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.card h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.trend {
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
}

.trend.up {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.trend.down {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.chart-placeholder {
    height: 150px;
    background: linear-gradient(90deg, var(--bg-color) 0%, var(--border-color) 50%, var(--bg-color) 100%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
    border-radius: 8px;
    opacity: 0.5;
}

/* Tickers & Expand */
.expand-btn {
    background: none;
    border: none;
    color: var(--accent-color);
    font-size: 0.875rem;
    cursor: pointer;
    margin-top: 1rem;
    padding: 0;
    font-weight: 500;
}

.expand-btn:hover {
    text-decoration: underline;
}

.tickers-section {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.tickers-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    max-height: 150px;
    overflow-y: auto;
}

.ticker-tag {
    background: var(--bg-color);
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-size: 0.75rem;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    font-family: inherit;
    font-weight: 500;
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

.hidden {
    display: none !important;
}

/* Profile */
#user-profile {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

#logout-btn {
    background: none;
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    font-family: inherit;
    font-weight: 500;
    transition: all 0.2s;
}

#logout-btn:hover {
    border-color: var(--danger);
    color: var(--danger);
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    position: relative;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.close-modal {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
    color: var(--text-secondary);
}

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

.form-group {
    margin-bottom: 2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.8rem;
    font-weight: 500;
    font-size: 1.1rem;
}

.form-group input {
    width: 100%;
    padding: 1rem 1.2rem;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-color);
    font-size: 1.2rem;
    outline: none;
    transition: border-color 0.2s;
}

.form-group input:focus {
    border-color: var(--accent-color);
}

/* Buttons */
.primary-btn {
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.2s;
}

.primary-btn:hover {
    background-color: var(--accent-hover);
}

.card-actions {
    display: flex;
    gap: 0.5rem;
    margin-left: auto;
}

.edit-btn,
.delete-btn {
    background: transparent;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.2s;
    font-weight: 500;
}

.edit-btn {
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
}

.edit-btn:hover {
    background: var(--accent-color);
    color: white;
}

.delete-btn {
    border: 1px solid var(--danger);
    color: var(--danger);
}

.delete-btn:hover {
    background: var(--danger);
    color: white;
}

/* Chart Controls */
.chart-controls {
    display: flex;
    justify-content: flex-end;
    gap: 5px;
    margin-bottom: 5px;
}

.time-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 0.7rem;
    cursor: pointer;
    transition: all 0.2s;
}

.time-btn:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.time-btn.active {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.canvas-wrapper {
    position: relative;
}