/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: #1a1a2e;
    line-height: 1.6;
    background: #fff;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
ul { list-style: none; }
h1, h2, h3, h4 { line-height: 1.2; }
h2 { font-size: 2rem; font-weight: 800; margin-bottom: 0.5rem; }
h3 { font-size: 1.25rem; font-weight: 700; }
p { margin-bottom: 1rem; }
table { border-collapse: collapse; width: 100%; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* === Top Banner === */
.top-banner {
    background: #1a1a2e;
    color: #a5b4fc;
    text-align: center;
    padding: 0.5rem;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.02em;
}

/* === Navbar === */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid #e5e7eb;
    padding: 0.75rem 0;
}
.nav-container { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 0.5rem; font-weight: 800; font-size: 1.2rem; }
.logo-icon { font-size: 1.5rem; }
.logo-text { color: #1a1a2e; }
.nav-links { display: flex; gap: 1.5rem; align-items: center; }
.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: #4b5563;
    transition: color 0.2s;
}
.nav-links a:hover { color: #2563eb; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.nav-toggle span {
    width: 24px; height: 2px;
    background: #1a1a2e;
    border-radius: 2px;
    transition: 0.2s;
}

/* === Hero === */
.hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: #fff;
    padding: 5rem 0 4rem;
    position: relative;
    overflow: hidden;
}
.hero::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(99,102,241,0.15) 0%, transparent 70%);
    pointer-events: none;
}
.hero-badge {
    display: inline-block;
    background: rgba(99,102,241,0.2);
    border: 1px solid rgba(99,102,241,0.3);
    padding: 0.375rem 1rem;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #a5b4fc;
}
.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    max-width: 700px;
    margin-bottom: 1.5rem;
}
.highlight { color: #818cf8; }
.hero-sub {
    font-size: 1.15rem;
    color: #94a3b8;
    max-width: 640px;
    line-height: 1.7;
    margin-bottom: 2rem;
}
.hero-sub strong { color: #e2e8f0; }
.hero-actions { display: flex; gap: 1rem; margin-bottom: 3rem; flex-wrap: wrap; }

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    max-width: 700px;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}
.stat-number { font-size: 2rem; font-weight: 800; color: #818cf8; }
.stat-label { font-size: 0.8rem; color: #94a3b8; }

/* === Buttons === */
.btn {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.2s;
    cursor: pointer;
    border: 2px solid transparent;
}
.btn-primary { background: #6366f1; color: #fff; }
.btn-primary:hover { background: #4f46e5; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(99,102,241,0.4); }
.btn-outline { border-color: rgba(255,255,255,0.3); color: #fff; background: transparent; }
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.1); }
.btn-lg { padding: 1rem 2.5rem; font-size: 1.1rem; }

/* === Sections === */
.section { padding: 5rem 0; }
.section-alt { background: #f8fafc; }
.section-intro {
    font-size: 1.1rem;
    color: #64748b;
    max-width: 700px;
    margin-bottom: 2.5rem;
}

/* === Info Grid === */
.info-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; margin-bottom: 2rem; }
.info-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 1.5rem;
    position: relative;
}
.info-icon {
    width: 36px; height: 36px;
    background: #6366f1;
    color: #fff;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}
.info-card h3 { margin-bottom: 0.5rem; }
.info-card p { font-size: 0.9rem; color: #64748b; margin-bottom: 0; }

/* === Callout === */
.callout {
    padding: 1.5rem 2rem;
    border-radius: 12px;
    border-left: 4px solid;
}
.callout-info { background: #eff6ff; border-color: #3b82f6; }
.callout h4 { margin-bottom: 0.5rem; color: #1e40af; }
.callout p { color: #1e3a5f; margin-bottom: 0; font-size: 0.95rem; }

/* === Comparison Table === */
.table-wrapper { overflow-x: auto; margin-bottom: 1rem; border-radius: 12px; border: 1px solid #e2e8f0; }
.comparison-table { min-width: 800px; }
.comparison-table th {
    background: #1a1a2e;
    color: #fff;
    padding: 1rem;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    text-align: left;
}
.comparison-table td {
    padding: 1rem;
    border-bottom: 1px solid #f1f5f9;
    font-size: 0.9rem;
    vertical-align: middle;
}
.comparison-table small { color: #94a3b8; }
.row-best { background: #f0fdf4; }
.row-good { background: #fefce8; }
.row-warn { background: #fff7ed; }
.row-danger { background: #fef2f2; }

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    font-weight: 700;
    font-size: 0.85rem;
}
.badge-green { background: #dcfce7; color: #166534; }
.badge-yellow { background: #fef9c3; color: #854d0e; }
.badge-orange { background: #fed7aa; color: #9a3412; }
.badge-red { background: #fecaca; color: #991b1b; }

.verdict {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.verdict-best { background: #166534; color: #fff; }
.verdict-good { background: #65a30d; color: #fff; }
.verdict-ok { background: #ca8a04; color: #fff; }
.verdict-warn { background: #ea580c; color: #fff; }
.verdict-danger { background: #dc2626; color: #fff; }
.flag-text { color: #dc2626; font-weight: 600; }

.table-note { font-size: 0.85rem; color: #94a3b8; margin-bottom: 2rem; }

.savings-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(135deg, #1a1a2e, #0f3460);
    color: #fff;
    padding: 2rem;
    border-radius: 12px;
}
.savings-content h3 { margin-bottom: 0.5rem; }
.savings-content p { color: #94a3b8; margin-bottom: 0; }
.savings-content strong { color: #818cf8; }
.savings-content em { color: #fbbf24; font-style: normal; font-weight: 600; }
.savings-amount {
    font-size: 3rem;
    font-weight: 800;
    color: #34d399;
    white-space: nowrap;
}

/* === Warnings === */
.warning-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.warning-card {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #e2e8f0;
    background: #fff;
}
.warning-header {
    padding: 1.25rem 1.5rem 0.75rem;
}
.warning-level {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    margin-bottom: 0.5rem;
}
.warning-critical .warning-level { background: #fecaca; color: #991b1b; }
.warning-high .warning-level { background: #fed7aa; color: #9a3412; }
.warning-medium .warning-level { background: #fef9c3; color: #854d0e; }
.warning-info .warning-level { background: #dbeafe; color: #1e40af; }
.warning-header h3 { font-size: 1.1rem; }
.warning-body {
    padding: 0 1.5rem 1.5rem;
    font-size: 0.9rem;
    color: #4b5563;
}
.warning-body ul { margin: 0.75rem 0; padding-left: 1.25rem; list-style: disc; }
.warning-body li { margin-bottom: 0.375rem; }
.warning-advice {
    background: #f1f5f9;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-weight: 600;
    margin-bottom: 0;
    margin-top: 1rem;
}

/* === Checklist === */
.checklist { display: grid; gap: 1rem; max-width: 800px; }
.check-item {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
    background: #fff;
    align-items: flex-start;
}
.check-icon { font-size: 1.25rem; flex-shrink: 0; margin-top: 2px; }
.check-item strong { display: block; margin-bottom: 0.25rem; }
.check-item p { font-size: 0.875rem; color: #64748b; margin-bottom: 0; }
.check-danger { border-left: 4px solid #dc2626; }
.check-warning { border-left: 4px solid #f59e0b; }
.check-info { border-left: 4px solid #3b82f6; }

/* === Rights === */
.rights-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.right-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 1.75rem;
}
.right-card h3 { color: #1e40af; margin-bottom: 0.75rem; }
.right-card p { font-size: 0.9rem; color: #4b5563; }
.legal-ref {
    display: inline-block;
    background: #eff6ff;
    color: #2563eb;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    margin-top: 0.5rem;
}

/* === Calculator === */
.calculator-box {
    max-width: 800px;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 4px 24px rgba(0,0,0,0.04);
}
.calc-step { margin-bottom: 2rem; }
.calc-step-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}
.calc-step-num {
    width: 32px; height: 32px;
    background: #6366f1;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.85rem;
    flex-shrink: 0;
}
.calc-step-title { font-weight: 700; font-size: 1.1rem; color: #1a1a2e; }
.calc-input-group { margin-bottom: 1.75rem; }
.calc-input-group label {
    display: block;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
    color: #374151;
}
.calc-help {
    font-size: 0.8rem;
    color: #94a3b8;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}
/* Gross box */
.calc-gross-box {
    background: linear-gradient(135deg, #eff6ff, #f0fdf4);
    border: 2px solid #6366f1;
    border-radius: 12px;
    padding: 1.5rem 2rem;
    text-align: center;
}
.calc-gross-label { font-size: 0.85rem; color: #64748b; margin-bottom: 0.25rem; }
.calc-gross-amount { font-size: 2.5rem; font-weight: 800; color: #1a1a2e; }
.calc-gross-sub { font-size: 0.85rem; color: #64748b; margin-top: 0.25rem; }
.calc-gross-explain {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #d1d5db;
    font-size: 0.85rem;
    color: #4b5563;
    text-align: left;
}
input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    background: #e2e8f0;
    border-radius: 3px;
    outline: none;
    margin-bottom: 0.75rem;
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px; height: 20px;
    background: #6366f1;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(99,102,241,0.3);
}
.calc-input-row { display: flex; align-items: center; gap: 0.5rem; }
.calc-input-row input[type="number"] {
    width: 120px;
    padding: 0.5rem 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
}
.calc-unit { font-size: 0.875rem; color: #94a3b8; }

.calc-results { margin-top: 0; }
.calc-result-row {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    align-items: center;
    padding: 1rem 1.25rem;
    border-radius: 10px;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    border: 1px solid transparent;
}
.calc-result-row:nth-child(1) { background: #f0fdf4; border-color: #bbf7d0; }
.calc-result-row:nth-child(2) { background: #f0fdf4; }
.calc-result-row:nth-child(3) { background: #fefce8; }
.calc-result-row:nth-child(4) { background: #fef9c3; }
.calc-result-row:nth-child(5) { background: #fff7ed; }
.calc-result-row:nth-child(6) { background: #fef2f2; border-color: #fecaca; }
.calc-result-header {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    padding: 0.5rem 1.25rem;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #94a3b8;
    margin-bottom: 0.25rem;
}
.calc-provider { font-weight: 700; }
.calc-provider small { display: block; font-weight: 400; color: #94a3b8; font-size: 0.75rem; }
.calc-cost { color: #dc2626; font-weight: 600; font-size: 0.9rem; }
.calc-net { font-weight: 800; font-size: 1.05rem; color: #166534; }
.calc-bar-wrap { height: 6px; background: #e2e8f0; border-radius: 3px; overflow: hidden; margin-top: 4px; }
.calc-bar { height: 100%; border-radius: 3px; }
.calc-bar-green { background: #22c55e; }
.calc-bar-red { background: #ef4444; }
.calc-conclusion-box {
    background: linear-gradient(135deg, #1a1a2e, #0f3460);
    color: #fff;
    border-radius: 12px;
    padding: 1.75rem 2rem;
}
.calc-conclusion-box h4 { margin-bottom: 0.5rem; font-size: 1rem; }
.calc-conclusion-box p { color: #94a3b8; font-size: 0.9rem; margin-bottom: 0; }
.calc-conclusion-box strong { color: #34d399; }
.calc-conclusion-box .highlight-amount { color: #34d399; font-size: 1.5rem; font-weight: 800; }
.calc-disclaimer { font-size: 0.8rem; color: #94a3b8; margin-top: 1.5rem; margin-bottom: 0; }
@media (max-width: 600px) {
    .calc-result-row, .calc-result-header { grid-template-columns: 1fr 1fr; gap: 0.375rem; }
    .calc-result-header span:nth-child(3), .calc-result-header span:nth-child(4) { display: none; }
}

/* === Filter Bar === */
.filter-bar { display: flex; gap: 0.5rem; margin-bottom: 2rem; flex-wrap: wrap; }
.filter-btn {
    padding: 0.5rem 1.25rem;
    border: 1px solid #d1d5db;
    border-radius: 100px;
    background: #fff;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}
.filter-btn:hover { border-color: #6366f1; color: #6366f1; }
.filter-btn.active { background: #6366f1; color: #fff; border-color: #6366f1; }

/* === Providers Grid === */
.providers-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.provider-card {
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 1.5rem;
    background: #fff;
    transition: 0.2s;
}
.provider-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.06); transform: translateY(-2px); }
.provider-card.flagged { border-color: #fca5a5; background: #fef2f2; }
.provider-card.b2b-only { opacity: 0.7; }
.provider-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 0.75rem; }
.provider-name { font-weight: 700; font-size: 1rem; }
.provider-url { font-size: 0.75rem; color: #6366f1; }
.provider-tags { display: flex; gap: 0.375rem; flex-wrap: wrap; margin-bottom: 0.75rem; }
.tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.tag-consumer { background: #dcfce7; color: #166534; }
.tag-b2b { background: #e0e7ff; color: #3730a3; }
.tag-nea { background: #dbeafe; color: #1e40af; }
.tag-transparent { background: #d1fae5; color: #065f46; }
.tag-opaque { background: #fef3c7; color: #92400e; }
.tag-flagged { background: #fecaca; color: #991b1b; }
.provider-commission {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}
.provider-commission strong { color: #1a1a2e; }
.provider-warnings {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid #f1f5f9;
}
.provider-warning-item {
    font-size: 0.8rem;
    color: #dc2626;
    padding: 0.25rem 0;
    display: flex;
    gap: 0.375rem;
    align-items: flex-start;
}
.provider-warning-item::before { content: '!'; font-weight: 800; flex-shrink: 0; }

/* === Timeline === */
.model-timeline { max-width: 700px; margin-bottom: 3rem; }
.timeline-item {
    display: flex;
    gap: 1.5rem;
    padding-bottom: 2rem;
    position: relative;
}
.timeline-item:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 19px;
    top: 48px;
    width: 2px;
    bottom: 0;
    background: #e2e8f0;
}
.timeline-item.active::after { background: #6366f1; }
.timeline-marker {
    width: 40px; height: 40px;
    background: #e2e8f0;
    color: #64748b;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    flex-shrink: 0;
}
.timeline-item.active .timeline-marker { background: #6366f1; color: #fff; }
.timeline-phase {
    font-size: 0.75rem;
    font-weight: 700;
    color: #6366f1;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.timeline-content h3 { margin: 0.25rem 0 0.5rem; }
.timeline-content p { font-size: 0.9rem; color: #4b5563; margin-bottom: 0; }

.model-comparison {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-top: 1.5rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 10px;
}
.model-current, .model-future { text-align: center; }
.model-current h4, .model-future h4 { font-size: 0.8rem; color: #94a3b8; margin-bottom: 0.25rem; }
.model-rate { font-size: 1.5rem; font-weight: 800; }
.model-current .model-rate { color: #dc2626; }
.model-future .model-rate { color: #16a34a; }
.model-current p, .model-future p { font-size: 0.75rem; color: #94a3b8; margin-bottom: 0; }
.model-arrow { font-size: 1.5rem; color: #94a3b8; }

/* === Benefits Grid === */
.coop-benefits { margin-bottom: 3rem; }
.coop-benefits h3 { margin-bottom: 1.5rem; }
.benefits-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
.benefit {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: 10px;
    padding: 1.25rem;
}
.benefit strong { display: block; margin-bottom: 0.25rem; color: #166534; }
.benefit p { font-size: 0.875rem; color: #4b5563; margin-bottom: 0; }

/* === CTA Box === */
.cta-box {
    text-align: center;
    background: linear-gradient(135deg, #1a1a2e, #0f3460);
    color: #fff;
    padding: 3rem;
    border-radius: 16px;
}
.cta-box h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }
.cta-box p { color: #94a3b8; }
.cta-box strong { color: #818cf8; }
.cta-box .btn { margin-top: 1rem; }
.cta-note { font-size: 0.8rem; margin-top: 1rem; margin-bottom: 0; }

/* === About Grid === */
.about-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.about-card {
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 1.5rem;
}
.about-card h3 { color: #6366f1; margin-bottom: 0.5rem; }
.about-card p { font-size: 0.875rem; color: #64748b; margin-bottom: 0; }

/* === Footer === */
.footer {
    background: #1a1a2e;
    color: #94a3b8;
    padding: 3rem 0 1.5rem;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
.footer h4 { color: #fff; margin-bottom: 1rem; font-size: 0.95rem; }
.footer p { font-size: 0.875rem; }
.footer ul li { margin-bottom: 0.5rem; }
.footer a { color: #818cf8; font-size: 0.85rem; transition: color 0.2s; }
.footer a:hover { color: #a5b4fc; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 1.5rem;
    text-align: center;
    font-size: 0.8rem;
}

/* === Responsive === */
@media (max-width: 1024px) {
    .info-grid { grid-template-columns: repeat(2, 1fr); }
    .rights-grid { grid-template-columns: repeat(2, 1fr); }
    .about-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .warning-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 1rem 1.5rem;
        border-bottom: 1px solid #e5e7eb;
        gap: 0.75rem;
    }
    .nav-links.open { display: flex; }

    .hero h1 { font-size: 2rem; }
    .hero-sub { font-size: 1rem; }
    h2 { font-size: 1.5rem; }

    .info-grid { grid-template-columns: 1fr; }
    .rights-grid { grid-template-columns: 1fr; }
    .providers-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .benefits-grid { grid-template-columns: 1fr; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }

    .savings-box { flex-direction: column; text-align: center; gap: 1rem; }
    .savings-amount { font-size: 2.5rem; }

    .model-comparison { flex-direction: column; gap: 0.75rem; }
    .model-arrow { transform: rotate(90deg); }

    .calculator-box { padding: 1.5rem; }
}