/* ── Tesla FSD – Tesla-inspired dark theme ── */

:root {
    --red: #e82127;
    --red-hover: #ff2b32;
    --bg: #0a0a0a;
    --bg-alt: #111111;
    --card: #181818;
    --card-border: #2a2a2a;
    --text: #f5f5f5;
    --text-muted: #888888;
    --green: #22c55e;
    --yellow: #f59e0b;
    --blue: #3b82f6;
    --radius: 12px;
    --transition: 0.2s ease;
}

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

html, body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

a { color: var(--red); text-decoration: none; }
a:hover { color: var(--red-hover); }

/* ── Layout ── */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 5rem 0;
    border-bottom: 1px solid var(--card-border);
}

.section-alt {
    background: var(--bg-alt);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.section-sub {
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    font-size: 1.05rem;
}

/* ── Hero ── */
.hero {
    position: relative;
    padding: 2.75rem 0;
    overflow: hidden;
    border-bottom: 1px solid var(--card-border);
}

/* Blurred Tesla car background - photo by myenergi on Unsplash (free to use) */
.hero-bg {
    position: absolute;
    inset: -8px;
    background-image: url('https://images.unsplash.com/photo-1617788138017-80ad40651399?auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center 55%;
    filter: blur(8px) brightness(0.22);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.75rem;
}

.tesla-t {
    width: 48px;
    height: 48px;
    background: var(--red);
    color: #fff;
    font-size: 1.75rem;
    font-weight: 900;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 0 24px rgba(232,33,39,0.5);
}

.hero-title {
    font-size: clamp(1.4rem, 4vw, 2.2rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
    color: var(--text);
    margin: 0;
}

.hero-sub {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
}

/* ── Status card ── */
.status-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 1.75rem 2rem;
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.9rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    width: fit-content;
}

.status-badge.warning {
    background: rgba(245,158,11,0.15);
    color: var(--yellow);
    border: 1px solid rgba(245,158,11,0.3);
}

.status-badge.working {
    background: rgba(34,197,94,0.12);
    color: var(--green);
    border: 1px solid rgba(34,197,94,0.3);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* ── Requirements grid ── */
.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.req-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.5rem;
}

.req-icon { font-size: 1.75rem; }
.req-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; }
.req-value { font-size: 1.1rem; font-weight: 700; }

.req-green { border-top: 3px solid var(--green); }
.req-green .req-value { color: var(--green); }
.req-yellow { border-top: 3px solid var(--yellow); }
.req-yellow .req-value { color: var(--yellow); }

/* ── HW Selector ── */
.hw-selector {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.hw-btn {
    flex: 1;
    min-width: 140px;
    background: var(--card);
    border: 2px solid var(--card-border);
    border-radius: var(--radius);
    color: var(--text);
    padding: 1.25rem 1rem;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    transition: border-color var(--transition), background var(--transition);
}

.hw-btn:hover { border-color: #555; background: #1f1f1f; }

.hw-btn-main { font-size: 1.6rem; font-weight: 800; }
.hw-btn-sub { font-size: 0.8rem; color: var(--text-muted); }

.hw-btn.active { border-color: var(--blue); background: rgba(59,130,246,0.08); }
.hw-btn.hw3-active { border-color: var(--yellow); background: rgba(245,158,11,0.08); }
.hw-btn.hw3-active .hw-btn-main { color: var(--yellow); }
.hw-btn.hw4-active { border-color: var(--green); background: rgba(34,197,94,0.08); }
.hw-btn.hw4-active .hw-btn-main { color: var(--green); }
.hw-btn.unknown-active .hw-btn-main { color: var(--blue); }

/* ── Result cards ── */
.result-card {
    display: flex;
    gap: 1.25rem;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 1.75rem;
    margin-top: 1rem;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.result-icon {
    font-size: 1.5rem;
    font-weight: 800;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.result-body h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 0.5rem; }
.result-body p { color: var(--text-muted); margin-bottom: 0.5rem; }
.result-body p:last-child { margin-bottom: 0; }
.result-body ul { color: var(--text-muted); padding-left: 1.25rem; margin: 0.5rem 0; }
.result-body ul li { margin-bottom: 0.25rem; }
.result-body strong { color: var(--text); }
.result-body em { font-style: normal; color: var(--text); }

.result-yes { border-left: 4px solid var(--green); }
.result-yes .result-icon { background: rgba(34,197,94,0.15); color: var(--green); }

.result-no { border-left: 4px solid var(--red); }
.result-no .result-icon { background: rgba(232,33,39,0.15); color: var(--red); }

.result-maybe { border-left: 4px solid var(--yellow); }
.result-maybe .result-icon { background: rgba(245,158,11,0.15); color: var(--yellow); }

.inline-warning {
    background: rgba(245,158,11,0.1);
    border: 1px solid rgba(245,158,11,0.25);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    color: var(--yellow);
    font-size: 0.9rem;
    margin-top: 0.75rem;
}

/* ── Vehicle info card (license plate result) ── */
.vehicle-info-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.vi-row {
    display: flex;
    gap: 0.75rem;
    font-size: 0.9rem;
    align-items: baseline;
}

.vi-label {
    color: var(--text-muted);
    min-width: 72px;
    flex-shrink: 0;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.vi-value {
    color: var(--text);
    font-weight: 500;
}

/* ── Plate lookup ── */
.plate-section { margin-top: 0.5rem; }
.plate-label { color: var(--text-muted); margin-bottom: 1rem; }

.plate-input-wrap {
    display: flex;
    align-items: center;
    background: var(--card);
    border: 2px solid var(--card-border);
    border-radius: var(--radius);
    overflow: hidden;
    width: 100%;
    transition: border-color var(--transition);
}

.plate-input-wrap:focus-within { border-color: var(--blue); }

.plate-dk-flag { font-size: 1.4rem; padding: 0 0.6rem; }

.plate-dk-text {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    padding-right: 0.5rem;
    border-right: 1px solid var(--card-border);
}

.plate-input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    padding: 0.75rem 1rem;
    width: 100%;
    text-transform: uppercase;
}

.plate-input::placeholder { color: #444; font-weight: 400; letter-spacing: 0.05em; text-transform: none; }

.btn-check {
    background: var(--red);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    padding: 0.75rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition), opacity var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.btn-check:hover:not(:disabled) { background: var(--red-hover); }
.btn-check:disabled { opacity: 0.45; cursor: not-allowed; }

/* Full-width submit button below the input */
.btn-submit {
    width: 100%;
    margin-top: 0.75rem;
    background: var(--red);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    padding: 1rem;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: background var(--transition), opacity var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
}

.btn-submit:hover:not(:disabled) { background: var(--red-hover); }
.btn-submit:disabled { opacity: 0.45; cursor: not-allowed; }

/* Spinner */
.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

.error-msg {
    margin-top: 0.75rem;
    color: var(--red);
    font-size: 0.9rem;
}

/* ── HW Info cards ── */
.hw-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.hw-info-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 2rem;
    margin-bottom: 2rem;
}

.hw4-card { border-top: 3px solid var(--green); }

/* Side-by-side HW3 / HW4 result comparison inside single card */
.hw-compare {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.hw-compare-item {
    flex: 1;
    min-width: 180px;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.hw-compare-sep {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-style: italic;
    flex-shrink: 0;
}

.hw-result-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    margin-top: 1.25rem;
}

.hw-result-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
}

.hw3-row {
    background: rgba(245,158,11,0.07);
    border: 1px solid rgba(245,158,11,0.18);
}

.hw4-row {
    background: rgba(34,197,94,0.07);
    border: 1px solid rgba(34,197,94,0.18);
}

.hw-result-text {
    font-size: 0.95rem;
    color: var(--text-muted);
}

.hw-result-text strong {
    color: var(--text);
}

.hw-caveat {
    margin-top: 1.5rem;
    padding: 0.75rem 1rem;
    background: rgba(245,158,11,0.08);
    border: 1px solid rgba(245,158,11,0.2);
    border-radius: 8px;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.hw-photo {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hw-photo img {
    width: 100%;
    max-width: 520px;
    border-radius: var(--radius);
    border: 1px solid var(--card-border);
    display: block;
}

.hw-photo-caption {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-style: italic;
    text-align: center;
}

.hw-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
}

.hw3-badge { background: rgba(245,158,11,0.15); color: var(--yellow); border: 1px solid rgba(245,158,11,0.3); }
.hw4-badge { background: rgba(34,197,94,0.15); color: var(--green); border: 1px solid rgba(34,197,94,0.3); }

.hw-info-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
}

.steps {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    counter-reset: step;
}

.steps li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--text-muted);
    font-size: 0.95rem;
    counter-increment: step;
}

.steps li::before {
    content: counter(step);
    min-width: 1.6rem;
    height: 1.6rem;
    background: #2a2a2a;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text);
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.steps li strong { color: var(--text); }

.hw-display {
    border-radius: 8px;
    padding: 0.75rem 1.25rem;
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.9rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 1rem;
    letter-spacing: 0.03em;
}

.hw3-display { background: rgba(245,158,11,0.1); color: var(--yellow); border: 1px solid rgba(245,158,11,0.2); }
.hw4-display { background: rgba(34,197,94,0.1); color: var(--green); border: 1px solid rgba(34,197,94,0.2); }

.hw-note { font-size: 0.875rem; color: var(--text-muted); }
.hw-note strong { color: var(--text); }
.hw-note em { font-style: normal; color: var(--text); }

/* ── Tip box ── */
.tip-box {
    background: rgba(59,130,246,0.08);
    border: 1px solid rgba(59,130,246,0.2);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    color: #93c5fd;
    font-size: 0.95rem;
}

.tip-box strong { color: #bfdbfe; }

/* ── Footer ── */
.site-footer {
    background: #000;
    border-top: 1px solid var(--card-border);
    padding: 2.5rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    line-height: 1.8;
}

.footer-author {
    margin-top: 0.5rem;
    color: var(--text-muted);
}

.footer-author a {
    color: var(--text-muted);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.footer-author a:hover {
    color: var(--text);
}

/* ── Blazor error boundary ── */
.blazor-error-boundary {
    background: #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
    border-radius: var(--radius);
}
.blazor-error-boundary::after { content: "Der opstod en fejl."; }

/* ── Responsive ── */
@media (max-width: 600px) {
    .hero { padding: 2rem 0; }
    .section { padding: 3rem 0; }
    .section-title { font-size: 1.5rem; }
    .result-card { flex-direction: column; }
    .hw-selector { flex-direction: column; }
}