/*
 * Ny Bil — EV vs. Benzin Sammenligner
 * Baseret på templatemo_618_the_catalyst designsystem
 */

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

:root {
    --bg:           #FAFAFA;
    --surface:      #F0F0F0;
    --text:         #111111;
    --text-muted:   #666666;
    --text-dim:     #999999;
    --accent:       #D4FF00;
    --accent-hover: #c2eb00;
    --border:       #E5E5E5;
    --border-light: #EEEEEE;
    --white:        #FFFFFF;
    --ev-color:     #22C55E;
    --benzin-color: #EF4444;
    --ev-bg:        #F0FDF4;
    --benzin-bg:    #FEF2F2;

    --section-pad: clamp(80px, 10vw, 140px);
    --container:   1200px;
    --gap:         24px;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    letter-spacing: -0.02em;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--gap);
}

/* ===== Card System ===== */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: inset 0 1px 0 var(--white);
}

/* ===== Buttons ===== */
.btn-acid {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--accent);
    color: var(--text);
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.02em;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.2s cubic-bezier(0.22, 1, 0.36, 1),
                box-shadow 0.2s cubic-bezier(0.22, 1, 0.36, 1);
    user-select: none;
}

.btn-acid:hover {
    transform: translateY(-2px);
    box-shadow: 4px 4px 0px var(--text);
}

.btn-acid:active {
    transform: translateY(0);
    box-shadow: 1px 1px 0px var(--text);
}

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(250, 250, 250, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--gap);
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: -0.04em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-logo-mark {
    width: 28px;
    height: 28px;
    background: var(--accent);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-logo-mark svg { width: 16px; height: 16px; }

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
    list-style: none;
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.2s ease;
}

.nav-links a:hover { color: var(--text); }

.nav-toggle {
    display: none;
    width: 32px; height: 32px;
    background: none; border: none;
    cursor: pointer;
    position: relative;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
    display: block;
    width: 20px; height: 2px;
    background: var(--text);
    border-radius: 1px;
    transition: 0.3s;
    position: absolute;
    left: 6px;
}
.nav-toggle span { top: 15px; }
.nav-toggle span::before { content: ''; top: -6px; }
.nav-toggle span::after  { content: ''; top: 6px; }

.nav-toggle.active span { background: transparent; }
.nav-toggle.active span::before { top: 0; transform: rotate(45deg); }
.nav-toggle.active span::after  { top: 0; transform: rotate(-45deg); }

/* ===== Hero ===== */
.hero {
    padding: calc(var(--section-pad) + 64px) 0 var(--section-pad);
    text-align: center;
}

.hero h1 {
    font-size: clamp(36px, 6vw, 72px);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.05;
    max-width: 800px;
    margin: 0 auto 24px;
}

.accent-word {
    background: var(--accent);
    padding: 0 8px;
    border-radius: 6px;
}

.hero-sub {
    font-size: clamp(16px, 2vw, 20px);
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto 40px;
    line-height: 1.6;
}

.hero-actions { margin-bottom: 60px; }

.hero-metrics {
    display: flex;
    justify-content: center;
    gap: 60px;
}

.hero-metric-value {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -0.04em;
}

.hero-metric-label {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ===== Section Common ===== */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-tag {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.1;
}

.sammenligner,
.resultater,
.breakeven-section {
    padding: var(--section-pad) 0;
}

/* ===== Compare Grid ===== */
.compare-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--gap);
    margin-bottom: var(--gap);
}

.compare-card { padding: 32px; }

.compare-card-header { margin-bottom: 24px; }

.compare-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
}

.ev-badge {
    background: var(--ev-bg);
    color: #166534;
}

.benzin-badge {
    background: var(--benzin-bg);
    color: #991B1B;
}

.input-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.input-select,
.input-field {
    width: 100%;
    padding: 12px 16px;
    font-family: inherit;
    font-size: 15px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    outline: none;
    transition: border-color 0.2s ease;
}

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

.car-specs { margin-top: 16px; }

/* ===== Custom Car Fields ===== */
.custom-car-fields {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.custom-field .input-label {
    margin-bottom: 4px;
    font-size: 12px;
}

.custom-field .input-field {
    padding: 10px 14px;
    font-size: 14px;
}

.spec-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 14px;
}

.spec-row span { color: var(--text-muted); }

/* ===== Car Info Fields (alder, km, salgspris, restgæld) ===== */
.car-info-fields {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
}

.info-fields-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 12px;
    margin-top: 16px;
}

.info-fields-title:first-child {
    margin-top: 0;
}

.info-fields-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.info-fields-grid .input-label {
    margin-bottom: 4px;
    font-size: 12px;
}

.info-fields-grid .input-field {
    padding: 10px 14px;
    font-size: 14px;
}

/* ===== Params Card ===== */
.params-card { padding: 32px; }

.params-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 24px;
}

.params-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 28px;
}

.param-group { display: flex; flex-direction: column; }

.params-action { text-align: center; }

/* ===== Summary Cards ===== */
.summary-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--gap);
    margin-bottom: var(--gap);
}

.summary-card {
    padding: 32px;
    text-align: center;
}

.ev-summary { border-top: 3px solid var(--ev-color); }
.benzin-summary { border-top: 3px solid var(--benzin-color); }

.summary-badge { margin-bottom: 16px; }

.summary-name {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}

.summary-total {
    font-size: 36px;
    font-weight: 900;
    letter-spacing: -0.04em;
    margin-bottom: 4px;
}

.summary-monthly {
    font-size: 16px;
    color: var(--text-muted);
}

/* ===== Diff Banner ===== */
.diff-banner {
    padding: 24px;
    text-align: center;
    font-size: 18px;
    margin-bottom: var(--gap);
}

.diff-banner.ev-wins {
    background: var(--ev-bg);
    border-color: var(--ev-color);
    color: #166534;
}

.diff-banner.benzin-wins {
    background: var(--benzin-bg);
    border-color: var(--benzin-color);
    color: #991B1B;
}

/* ===== Breakdown Table ===== */
.breakdown-card { padding: 32px; }

.breakdown-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
}

.breakdown-row {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 14px;
}

.breakdown-header {
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.05em;
}

.breakdown-total {
    font-weight: 700;
    font-size: 16px;
    border-top: 2px solid var(--text);
    border-bottom: none;
    padding-top: 16px;
}

.diff-positive { color: var(--ev-color); font-weight: 600; }
.diff-negative { color: var(--benzin-color); font-weight: 600; }

/* ===== Chart ===== */
.chart-card {
    padding: 24px;
    overflow: hidden;
}

.chart-card canvas {
    display: block;
    margin: 0 auto;
}

.chart-legend {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-muted);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.legend-color {
    display: inline-block;
    width: 16px;
    height: 3px;
    border-radius: 2px;
}

.ev-color { background: var(--ev-color); }
.benzin-color { background: var(--benzin-color); }

.chart-note {
    text-align: center;
    margin-top: 16px;
    font-size: 15px;
    font-weight: 500;
}

/* ===== Footer ===== */
.footer {
    padding: 48px 0;
    text-align: center;
    border-top: 1px solid var(--border);
    font-size: 14px;
    color: var(--text-muted);
}

.footer-note {
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-dim);
}

/* ===== Scroll Reveal ===== */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-toggle { display: block; }

    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 64px; left: 0; right: 0; bottom: 0;
        background: var(--bg);
        padding: 40px var(--gap);
        gap: 24px;
        z-index: 999;
    }

    .compare-grid,
    .summary-grid {
        grid-template-columns: 1fr;
    }

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

    .hero-metrics {
        flex-direction: column;
        gap: 24px;
    }

    .breakdown-row {
        grid-template-columns: 1fr 1fr;
        gap: 4px 12px;
    }

    .breakdown-header {
        display: none;
    }

    .breakdown-cell:first-child {
        grid-column: 1 / -1;
        font-weight: 600;
    }
}

@media (max-width: 480px) {
    .params-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 { font-size: 32px; }
}