/* ============================================
   Web Vitals Budget Calculator — Styles
   Theme: Dark mode with Rose Pink palette
   ============================================ */

:root {
    --primary: #E84393;
    --primary-rgb: 232, 67, 147;
    --secondary: #FD79A8;
    --secondary-rgb: 253, 121, 168;
    --accent: #74B9FF;
    --accent-rgb: 116, 185, 255;
    --background: #1A0E14;
    --surface: #241620;
    --surface-hover: #2E1E2A;
    --border: rgba(232, 67, 147, 0.15);
    --border-hover: rgba(232, 67, 147, 0.3);
    --text-primary: #F5EAF0;
    --text-secondary: #C4A0B6;
    --text-muted: #7A5A6C;
    --error: #E74C3C;
    --success: #2ECC71;
    --warning: #E67E22;
    --good: #2ECC71;
    --needs: #F39C12;
    --poor: #E74C3C;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-xs: 6px;
    --transition: 250ms ease;
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-sans);
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

body::before {
    content: '';
    position: fixed;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(var(--primary-rgb), 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.app-container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.glass-panel {
    background: rgba(36, 22, 32, 0.7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-md);
}

/* Header */
.app-header {
    padding: 40px 0 32px;
    text-align: center;
}

.header-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.logo-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.app-header h1 {
    font-size: 1.6rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding-bottom: 40px;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    gap: 12px;
    flex-wrap: wrap;
}

.section-header h2 {
    font-size: 1.05rem;
    font-weight: 600;
}

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(var(--primary-rgb), 0.4);
}

.btn-primary.btn-sm {
    padding: 8px 16px;
    font-size: 0.8rem;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-secondary:hover {
    background: rgba(var(--primary-rgb), 0.1);
    border-color: var(--border-hover);
}

.btn-ghost {
    padding: 6px 12px;
    background: transparent;
    color: var(--text-muted);
    border: none;
    border-radius: var(--radius-xs);
    font-family: var(--font-sans);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all var(--transition);
}

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

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    padding: 0;
    background: transparent;
    color: var(--text-muted);
    border: none;
    border-radius: var(--radius-xs);
    cursor: pointer;
    transition: all var(--transition);
}

.btn-icon:hover {
    color: var(--error);
    background: rgba(231, 76, 60, 0.1);
}

/* Config / Radio */
.config-row {
    display: flex;
    gap: 24px;
    align-items: flex-end;
    flex-wrap: wrap;
}

.config-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
}

.radio-group {
    display: flex;
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-xs);
    border: 1px solid var(--border);
    overflow: hidden;
}

.radio-btn {
    padding: 8px 16px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-sans);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}

.radio-btn:hover {
    color: var(--text-secondary);
}

.radio-btn.active {
    background: rgba(var(--primary-rgb), 0.2);
    color: var(--primary);
}

.config-info {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.config-badge {
    padding: 4px 10px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 0.7rem;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

/* Budget */
.budget-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.budget-card {
    padding: 16px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.budget-card:hover {
    border-color: var(--border-hover);
}

.budget-metric-header {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 12px;
}

.budget-label {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
}

.budget-full {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.budget-input-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.budget-input {
    width: 100%;
    padding: 8px 10px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 1rem;
    outline: none;
    transition: all var(--transition);
}

.budget-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.15);
}

.budget-unit {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
}

.budget-thresholds {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.threshold {
    font-size: 0.6rem;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 600;
}

.threshold.good {
    background: rgba(46, 204, 113, 0.12);
    color: var(--good);
}

.threshold.needs {
    background: rgba(243, 156, 18, 0.12);
    color: var(--needs);
}

.threshold.poor {
    background: rgba(231, 76, 60, 0.12);
    color: var(--poor);
}

/* Bundles */
.bundle-add-form {
    margin-bottom: 16px;
    padding: 16px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    animation: slideDown 200ms ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.bundle-form-row {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    flex-wrap: wrap;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
    min-width: 100px;
}

.input-field {
    padding: 8px 12px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    outline: none;
    transition: all var(--transition);
}

.input-field:focus {
    border-color: var(--primary);
}

.input-field::placeholder {
    color: var(--text-muted);
}

.input-field.mono {
    font-family: var(--font-mono);
}

.select-field {
    padding: 8px 28px 8px 12px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    appearance: none;
    outline: none;
    cursor: pointer;
    transition: all var(--transition);
    background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23C4A0B6' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
}

.bundles-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 16px;
}

.bundle-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: rgba(0, 0, 0, 0.15);
    border: 1px solid transparent;
    border-radius: var(--radius-xs);
    transition: all var(--transition);
    animation: fadeIn 200ms ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.bundle-item:hover {
    border-color: var(--border);
}

.bundle-type-badge {
    padding: 3px 8px;
    border-radius: 10px;
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
}

.bundle-type-badge.js {
    background: rgba(243, 156, 18, 0.15);
    color: #F39C12;
}

.bundle-type-badge.css {
    background: rgba(116, 185, 255, 0.15);
    color: var(--accent);
}

.bundle-type-badge.font {
    background: rgba(232, 67, 147, 0.15);
    color: var(--primary);
}

.bundle-type-badge.image {
    background: rgba(46, 204, 113, 0.15);
    color: var(--good);
}

.bundle-name {
    flex: 1;
    font-size: 0.85rem;
    font-weight: 500;
}

.bundle-size {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.bundles-summary {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.summary-item {
    text-align: center;
}

.summary-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.summary-value {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.summary-value.highlight {
    color: var(--primary);
    font-weight: 700;
}

/* Impact */
.impact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.impact-card {
    text-align: center;
    padding: 20px 16px;
    background: rgba(0, 0, 0, 0.15);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.impact-metric {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.impact-predicted {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-primary);
    margin-bottom: 12px;
}

.impact-bar-container {
    height: 6px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
}

.impact-bar {
    height: 100%;
    border-radius: 3px;
    transition: width 500ms ease, background 300ms ease;
    width: 0;
}

.impact-bar.good {
    background: var(--good);
}

.impact-bar.needs {
    background: var(--needs);
}

.impact-bar.poor {
    background: var(--poor);
}

.impact-status {
    font-size: 0.72rem;
    color: var(--text-muted);
}

.impact-status.good {
    color: var(--good);
}

.impact-status.needs {
    color: var(--needs);
}

.impact-status.poor {
    color: var(--poor);
}

/* Suggestions */
.suggestions-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.suggestion-item {
    padding: 12px 16px;
    background: rgba(36, 22, 32, 0.7);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.82rem;
    color: var(--text-secondary);
    backdrop-filter: blur(8px);
}

.suggestion-icon {
    font-size: 1rem;
    flex-shrink: 0;
    margin-top: 1px;
}

.suggestion-text strong {
    color: var(--primary);
}

/* Chart */
.chart-container {
    min-height: 120px;
    display: flex;
    align-items: flex-end;
    gap: 0;
    padding-top: 16px;
}

.chart-empty {
    color: var(--text-muted);
    font-size: 0.85rem;
    width: 100%;
    text-align: center;
    padding: 40px;
}

.chart-bar-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.chart-bar {
    width: 100%;
    max-width: 60px;
    min-height: 4px;
    border-radius: var(--radius-xs) var(--radius-xs) 0 0;
    transition: height 500ms ease;
}

.chart-bar.js {
    background: linear-gradient(to top, rgba(243, 156, 18, 0.3), #F39C12);
}

.chart-bar.css {
    background: linear-gradient(to top, rgba(116, 185, 255, 0.3), var(--accent));
}

.chart-bar.font {
    background: linear-gradient(to top, rgba(232, 67, 147, 0.3), var(--primary));
}

.chart-bar.image {
    background: linear-gradient(to top, rgba(46, 204, 113, 0.3), var(--good));
}

.chart-label {
    font-size: 0.6rem;
    color: var(--text-muted);
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 80px;
}

.chart-size {
    font-size: 0.65rem;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

/* Export & Footer */
.export-section {
    text-align: center;
}

.app-footer {
    text-align: center;
    padding: 24px 0;
    color: var(--text-muted);
    font-size: 0.78rem;
    border-top: 1px solid var(--border);
    margin-top: auto;
}

/* Toast */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 12px 20px;
    background: var(--surface);
    border: 1px solid rgba(46, 204, 113, 0.3);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.85rem;
    box-shadow: var(--shadow-lg);
    animation: toastIn 300ms ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes toastOut {
    from {
        opacity: 1;
    }

    to {
        opacity: 0;
        transform: translateX(20px);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .app-container {
        padding: 0 16px;
    }

    .app-header h1 {
        font-size: 1.3rem;
    }

    .budget-grid {
        grid-template-columns: 1fr;
    }

    .impact-grid {
        grid-template-columns: 1fr;
    }

    .config-row {
        flex-direction: column;
        gap: 12px;
    }

    .bundle-form-row {
        flex-direction: column;
    }

    .bundles-summary {
        grid-template-columns: repeat(2, 1fr);
    }

    .glass-panel {
        padding: 16px;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
}