@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600&family=Inter:wght@300;400;500;600&display=swap');

:root {
    /* Design Tokens - Light Theme (Cream/Charcoal Ink) */
    --font-sans: 'Inter', -apple-system, sans-serif;
    --font-heading: 'Plus Jakarta Sans', sans-serif;
    
    --bg: #FAF8F5;
    --bg-offset: #F4F2EE;
    --text: #2D2E30;
    --text-muted: #6C6E72;
    --border: #E5E2DC;
    --border-focus: #2D2E30;
    
    --accent-green: #4E6E58;
    --accent-red: #B55A44;
    --accent-yellow: #B88E4C;
    --accent-blue: #3E5F7A;
    
    --toast-bg: #2D2E30;
    --toast-text: #FAF8F5;
    
    --radius-sm: 2px;
    --radius-md: 4px;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (prefers-color-scheme: dark) {
    :root {
        /* Design Tokens - Dark Theme (Warm Charcoal/Bone Ink) */
        --bg: #151618;
        --bg-offset: #1D1E21;
        --text: #E3E4E6;
        --text-muted: #8C8E92;
        --border: #2D2F32;
        --border-focus: #E3E4E6;
        
        --accent-green: #729B79;
        --accent-red: #D07A65;
        --accent-yellow: #DFB170;
        --accent-blue: #6FA2C5;
        
        --toast-bg: #FAF8F5;
        --toast-text: #151618;
    }
}

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

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    line-height: 1.6;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Layout Framework */
.app-container {
    display: flex;
    min-height: 100vh;
    max-width: 1300px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
}

/* Sidebar Navigation */
.app-sidebar {
    width: 260px;
    border-right: 1px solid var(--border);
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

@media (max-width: 768px) {
    .app-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border);
        padding: 1.5rem;
    }
}

.brand-section {
    margin-bottom: 3rem;
}

.brand-name {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.brand-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

@media (max-width: 768px) {
    .nav-links {
        flex-direction: row;
        flex-wrap: wrap;
        margin-bottom: 1rem;
    }
}

.nav-item {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    color: var(--text-muted);
    text-decoration: none;
    cursor: pointer;
    padding: 0.5rem 0;
    display: inline-block;
    transition: var(--transition);
    border-bottom: 2px solid transparent;
}

.nav-item:hover, .nav-item.active {
    color: var(--text);
    border-bottom: 2px solid var(--text);
}

.user-profile-section {
    margin-top: auto;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

@media (max-width: 768px) {
    .user-profile-section {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding-top: 1rem;
        margin-top: 1rem;
    }
}

.user-email {
    font-size: 0.85rem;
    font-weight: 500;
    word-break: break-all;
}

.user-tier-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-family: var(--font-heading);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--accent-blue);
    margin-top: 0.25rem;
}

.logout-btn {
    display: block;
    margin-top: 1rem;
    font-size: 0.8rem;
    color: var(--accent-red);
    text-decoration: none;
    cursor: pointer;
    background: none;
    border: none;
    font-family: var(--font-heading);
}

@media (max-width: 768px) {
    .logout-btn {
        margin-top: 0;
    }
}

/* Main Content Area */
.app-content {
    flex: 1;
    padding: 3rem 4rem;
    overflow-y: auto;
}

@media (max-width: 768px) {
    .app-content {
        padding: 1.5rem;
    }
}

.panel-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 400;
    letter-spacing: -0.02em;
    margin-bottom: 2rem;
}

/* Auth Screens */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg);
    padding: 2rem;
}

.auth-card {
    width: 100%;
    max-width: 360px;
    border: 1px solid var(--border);
    padding: 2.5rem 2rem;
    background-color: var(--bg-offset);
    border-radius: var(--radius-sm);
}

.auth-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 2rem;
    text-align: center;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.75rem;
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

.form-input {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    font-family: var(--font-sans);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--border-focus);
}

.btn {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--text);
    color: var(--bg);
    border: 1px solid var(--text);
    font-family: var(--font-heading);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--text);
    border-color: var(--border);
}

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

.auth-switch {
    margin-top: 1.5rem;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.auth-switch span {
    color: var(--text);
    cursor: pointer;
    text-decoration: underline;
}

/* Alerts Dashboard View */
.alerts-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 1rem;
}

.alerts-header h2 {
    font-family: var(--font-heading);
    font-weight: 500;
}

.action-btn-text {
    background: none;
    border: none;
    color: var(--text);
    font-family: var(--font-heading);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    cursor: pointer;
    padding: 0.25rem 0;
    border-bottom: 1.5px solid var(--text);
    transition: var(--transition);
}

.action-btn-text:hover {
    color: var(--text-muted);
    border-color: var(--text-muted);
}

/* Handcrafted Sentence Alert Form */
.sentence-form-wrapper {
    background-color: var(--bg-offset);
    border: 1px solid var(--border);
    padding: 2.5rem;
    margin-bottom: 3rem;
    border-radius: var(--radius-sm);
}

.sentence-title {
    font-family: var(--font-heading);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.sentence-line {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 300;
    line-height: 2.2;
    color: var(--text);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem 0.75rem;
}

.sentence-select, .sentence-input {
    background: none;
    border: none;
    border-bottom: 1px solid var(--text-muted);
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 500;
    color: var(--text);
    padding: 0 0.25rem;
    outline: none;
    cursor: pointer;
    border-radius: 0;
    transition: var(--transition);
}

.sentence-select:focus, .sentence-input:focus {
    border-bottom-color: var(--text);
    color: var(--text);
}

.sentence-select option {
    background-color: var(--bg-offset);
    color: var(--text);
    font-size: 1rem;
}

.sentence-input {
    width: 100px;
    text-align: center;
}

.sentence-actions {
    margin-top: 2.5rem;
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

.btn-inline {
    width: auto;
    padding: 0.5rem 1.5rem;
}

/* Alerts List UI */
.alerts-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.alert-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.alert-row:hover {
    background-color: var(--bg-offset);
}

.alert-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.alert-symbol-tag {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.symbol-name {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.02em;
}

.status-indicator {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.status-indicator.active {
    background-color: var(--accent-green);
}

.status-indicator.inactive {
    background-color: var(--text-muted);
}

.alert-description {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.alert-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    gap: 1.5rem;
}

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

/* Custom Plain Toggle Switch (distraction-free) */
.switch-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    user-select: none;
}

.switch-control:hover {
    color: var(--text);
}

.switch-control.enabled {
    color: var(--accent-green);
}

.delete-action {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
}

.delete-action:hover {
    color: var(--accent-red);
}

/* Logs / History Table */
.logs-list {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background-color: var(--bg-offset);
}

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

.log-item:last-child {
    border-bottom: none;
}

.log-message-box {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.log-symbol {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
}

.log-message {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.log-time {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Settings View Components */
.settings-section {
    margin-bottom: 3rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 2.5rem;
}

.settings-section:last-child {
    border-bottom: none;
}

.section-label {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1.5rem;
    color: var(--text);
}

.integration-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
}

@media (max-width: 768px) {
    .integration-row {
        flex-direction: column;
        gap: 1.5rem;
    }
}

.integration-details {
    flex: 1;
}

.integration-details p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.integration-code {
    font-family: monospace;
    background-color: var(--bg-offset);
    border: 1px solid var(--border);
    padding: 0.75rem 1rem;
    display: inline-block;
    font-size: 1rem;
    letter-spacing: 0.05em;
    font-weight: 600;
    color: var(--text);
    margin: 0.5rem 0;
}

.integration-status {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.05em;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.integration-status.connected {
    color: var(--accent-green);
}

.integration-status.disconnected {
    color: var(--accent-red);
}

.integration-status::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: currentColor;
}

.integration-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 220px;
}

@media (max-width: 768px) {
    .integration-actions {
        width: 100%;
    }
}

/* Pricing Grid Simulation */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 1.5rem;
}

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

.price-card {
    border: 1px solid var(--border);
    padding: 2rem;
    border-radius: var(--radius-sm);
    background-color: var(--bg-offset);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition);
}

.price-card.current {
    border-color: var(--text);
}

.price-header {
    margin-bottom: 1.5rem;
}

.price-name {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.price-value {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 500;
    margin-top: 0.5rem;
}

.price-features {
    list-style: none;
    margin-bottom: 2rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.price-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.price-features li::before {
    content: '✓';
    color: var(--text);
}

/* Toast Messages */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    z-index: 1000;
}

.toast {
    background-color: var(--toast-bg);
    color: var(--toast-text);
    padding: 1rem 1.5rem;
    font-size: 0.85rem;
    font-family: var(--font-heading);
    font-weight: 500;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    opacity: 0;
    transform: translateY(20px);
    animation: toast-in 0.3s forwards cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
}

@keyframes toast-in {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
    font-family: var(--font-heading);
    font-size: 0.9rem;
}

/* Utility classes */
.hidden {
    display: none !important;
}

.ticker-price-badge {
    font-family: monospace;
    font-size: 0.85rem;
    background-color: var(--bg-offset);
    padding: 0.15rem 0.4rem;
    border-radius: var(--radius-sm);
}

.ticker-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.ticker-card {
    border: 1px solid var(--border);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    background-color: var(--bg-offset);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ticker-symbol {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.8rem;
}