/* ============================================================
   DriveData Traffic Lab
   A playful car, traffic, and reliability interface
   ============================================================ */

:root {
    --font-body: 'Bricolage Grotesque', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

    --sp-1: 0.25rem;
    --sp-2: 0.5rem;
    --sp-3: 0.75rem;
    --sp-4: 1rem;
    --sp-5: 1.5rem;
    --sp-6: 2rem;
    --sp-8: 3rem;
    --sp-10: 4rem;
    --sp-12: 5rem;
    --sp-16: 8rem;

    --max-width: 1180px;
    --nav-height: 70px;
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 34px;

    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --duration: 0.22s;

    --score-a: #27d17f;
    --score-b: #9be63f;
    --score-c: #ffd166;
    --score-d: #ff9f1c;
    --score-f: #ff4d5e;

    --road-dark: #151923;
    --asphalt: #232837;
    --lane: rgba(255, 255, 255, 0.65);
}

[data-theme="dark"] {
    --bg-primary: #080b12;
    --bg-secondary: #111827;
    --bg-card: rgba(18, 25, 39, 0.82);
    --bg-card-hover: rgba(24, 34, 55, 0.92);
    --bg-elevated: #182237;
    --bg-input: rgba(255, 255, 255, 0.08);

    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-default: rgba(255, 255, 255, 0.14);
    --border-strong: rgba(255, 255, 255, 0.24);

    --text-primary: #f7fbff;
    --text-secondary: #b7c3d5;
    --text-tertiary: #74829a;
    --text-inverse: #09111f;

    --accent: #38d996;
    --accent-hover: #8cffca;
    --accent-subtle: rgba(56, 217, 150, 0.14);
    --hot: #ff477e;
    --sun: #ffd166;
    --sky: #4cc9f0;
    --glow: rgba(56, 217, 150, 0.34);
}

[data-theme="light"] {
    --bg-primary: #fff8e7;
    --bg-secondary: #fff0c2;
    --bg-card: rgba(255, 255, 255, 0.86);
    --bg-card-hover: #ffffff;
    --bg-elevated: #ffffff;
    --bg-input: rgba(8, 11, 18, 0.06);

    --border-subtle: rgba(20, 27, 43, 0.08);
    --border-default: rgba(20, 27, 43, 0.14);
    --border-strong: rgba(20, 27, 43, 0.24);

    --text-primary: #101827;
    --text-secondary: #4a5568;
    --text-tertiary: #7b879a;
    --text-inverse: #fff8e7;

    --accent: #0aa36f;
    --accent-hover: #07865c;
    --accent-subtle: rgba(10, 163, 111, 0.12);
    --hot: #d7265f;
    --sun: #f6b100;
    --sky: #1d8fb8;
    --glow: rgba(10, 163, 111, 0.22);
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background:
        radial-gradient(circle at 20% 0%, rgba(255, 71, 126, 0.2), transparent 32rem),
        radial-gradient(circle at 85% 12%, rgba(76, 201, 240, 0.18), transparent 28rem),
        linear-gradient(180deg, var(--bg-primary), var(--bg-secondary));
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: 0.34;
    background-image:
        linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 42px 42px;
    mask-image: linear-gradient(to bottom, black, transparent 78%);
    z-index: -1;
}

::selection { background: var(--sun); color: #111827; }

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--duration) var(--ease-out), transform var(--duration) var(--ease-out);
}

a:hover { color: var(--accent-hover); }

button, select, input, textarea { font: inherit; }

.dd-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--nav-height);
    background: color-mix(in srgb, var(--bg-primary), transparent 12%);
    border-bottom: 1px solid var(--border-subtle);
    backdrop-filter: blur(18px) saturate(1.4);
}

.dd-nav__inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--sp-5);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-4);
}

.dd-nav__logo {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    color: var(--text-primary);
    font-weight: 800;
    font-size: 1.16rem;
    letter-spacing: -0.03em;
}

.dd-nav__logo:hover { color: var(--text-primary); transform: translateY(-1px); }

.brand-mark {
    width: 30px;
    height: 38px;
    border-radius: 999px;
    background: #111827;
    border: 2px solid var(--border-strong);
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    box-shadow: 0 12px 30px rgba(0,0,0,0.22);
}

.brand-mark span {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    display: block;
}
.brand-mark span:nth-child(1) { background: var(--score-f); box-shadow: 0 0 12px var(--score-f); }
.brand-mark span:nth-child(2) { background: var(--score-c); opacity: 0.8; }
.brand-mark span:nth-child(3) { background: var(--score-a); box-shadow: 0 0 14px var(--score-a); }

.dd-nav__links {
    display: flex;
    align-items: center;
    gap: var(--sp-4);
}

.dd-nav__links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 700;
}

.dd-nav__links a:hover { color: var(--text-primary); }

.nav-cta {
    color: var(--text-inverse) !important;
    background: linear-gradient(135deg, var(--accent), var(--sun));
    padding: 0.62rem 0.95rem;
    border-radius: 999px;
    box-shadow: 0 10px 30px var(--glow);
}

.nav-cta:hover { transform: translateY(-1px); }

.dd-theme-toggle {
    background: var(--bg-card);
    border: 1px solid var(--border-default);
    border-radius: 999px;
    cursor: pointer;
    padding: 0.58rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    transition: all var(--duration) var(--ease-out);
}

.dd-theme-toggle:hover {
    color: var(--text-primary);
    border-color: var(--border-strong);
    transform: rotate(-8deg) scale(1.03);
}

[data-theme="dark"] .dd-icon-sun { display: block; }
[data-theme="dark"] .dd-icon-moon { display: none; }
[data-theme="light"] .dd-icon-sun { display: none; }
[data-theme="light"] .dd-icon-moon { display: block; }

.dd-main {
    flex: 1;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--sp-8) var(--sp-5) var(--sp-5);
    width: 100%;
}

.dd-hero {
    position: relative;
    text-align: center;
    padding: clamp(3rem, 7vw, 7.5rem) 0 var(--sp-8);
    isolation: isolate;
}

.road-sky {
    position: absolute;
    inset: -80px -20px auto;
    height: 420px;
    pointer-events: none;
    z-index: -1;
    filter: blur(2px);
}

.traffic-orb {
    position: absolute;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    opacity: 0.28;
    filter: blur(42px);
    animation: floaty 9s ease-in-out infinite;
}

.traffic-orb--red { background: var(--score-f); left: 2%; top: 18%; }
.traffic-orb--amber { background: var(--score-c); right: 16%; top: 0; animation-delay: -3s; }
.traffic-orb--green { background: var(--score-a); right: 0; top: 35%; animation-delay: -6s; }

@keyframes floaty {
    0%, 100% { transform: translate3d(0,0,0) scale(1); }
    50% { transform: translate3d(18px, -22px, 0) scale(1.06); }
}

.dd-hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    background: var(--accent-subtle);
    color: var(--accent-hover);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.55rem 0.85rem;
    border-radius: 999px;
    border: 1px solid color-mix(in srgb, var(--accent), transparent 55%);
    margin-bottom: var(--sp-5);
    box-shadow: 0 16px 36px rgba(0,0,0,0.14);
}

.dd-hero__title,
.content-title {
    font-size: clamp(2.8rem, 7.2vw, 6.9rem);
    font-weight: 800;
    letter-spacing: -0.065em;
    line-height: 0.91;
    margin: 0 auto var(--sp-5);
    max-width: 980px;
}

.content-title { font-size: clamp(2.4rem, 5vw, 5.4rem); max-width: 900px; }

.dd-hero__title em {
    font-style: normal;
    color: transparent;
    background: linear-gradient(100deg, var(--score-a), var(--score-c), var(--hot));
    -webkit-background-clip: text;
    background-clip: text;
}

.dd-hero__subtitle,
.muted-large {
    font-size: clamp(1.05rem, 2vw, 1.28rem);
    color: var(--text-secondary);
    max-width: 730px;
    margin: 0 auto var(--sp-8);
    line-height: 1.55;
}

.hero-dashboard {
    max-width: 850px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--sp-4);
    align-items: stretch;
    padding: var(--sp-3);
    border-radius: calc(var(--radius-xl) + 8px);
    background: linear-gradient(135deg, rgba(255,255,255,0.12), rgba(255,255,255,0.03));
    border: 1px solid var(--border-default);
    box-shadow: 0 28px 90px rgba(0,0,0,0.3);
    backdrop-filter: blur(16px);
}

.signal-stack {
    width: 68px;
    min-height: 100%;
    border-radius: 30px;
    background: #111827;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    border: 2px solid rgba(255,255,255,0.12);
    box-shadow: inset 0 -18px 30px rgba(0,0,0,0.34), 0 18px 38px rgba(0,0,0,0.22);
}

.signal-light {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: block;
    opacity: 0.35;
}
.signal-light--red { background: var(--score-f); }
.signal-light--amber { background: var(--score-c); }
.signal-light--green { background: var(--score-a); }
.signal-light.is-on { opacity: 1; box-shadow: 0 0 24px currentColor; animation: pulseLight 1.8s ease-in-out infinite; }
.signal-light--red.is-on { color: var(--score-f); }
.signal-light--amber.is-on { color: var(--score-c); }
.signal-light--green.is-on { color: var(--score-a); }

@keyframes pulseLight {
    50% { transform: scale(1.14); filter: brightness(1.24); }
}

.dd-search { width: 100%; margin: 0 auto; }

.dd-search__row {
    display: grid;
    grid-template-columns: 1fr 1fr 0.58fr auto;
    gap: var(--sp-2);
    background: color-mix(in srgb, var(--bg-card), black 10%);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    padding: var(--sp-2);
    transition: border-color var(--duration) var(--ease-out), box-shadow var(--duration) var(--ease-out);
}

.dd-search__row:focus-within {
    border-color: color-mix(in srgb, var(--accent), white 10%);
    box-shadow: 0 0 0 4px var(--accent-subtle), 0 16px 60px var(--glow);
}

.dd-search select,
.dd-search__btn {
    font-family: var(--font-body);
    font-size: 1rem;
    border: none;
    outline: none;
}

.dd-search select {
    background-color: var(--bg-input);
    color: var(--text-primary);
    padding: 1rem 2.35rem 1rem 1rem;
    border-radius: 18px;
    cursor: pointer;
    appearance: none;
    min-width: 0;
    border: 1px solid transparent;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='13' height='13' fill='%23a7b4c8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
}

.dd-search select:hover:not(:disabled),
.dd-search select:focus:not(:disabled) {
    border-color: var(--border-default);
    background-color: color-mix(in srgb, var(--bg-input), white 4%);
}

.dd-search select:disabled { opacity: 0.48; cursor: not-allowed; }

.dd-search__btn {
    color: #09111f;
    background: linear-gradient(135deg, var(--accent), var(--sun));
    padding: 1rem 1.4rem;
    border-radius: 18px;
    font-weight: 800;
    cursor: pointer;
    white-space: nowrap;
    box-shadow: 0 15px 34px var(--glow);
    transition: all var(--duration) var(--ease-out);
}

.dd-search__btn:hover:not(:disabled) { transform: translateY(-2px) rotate(-0.5deg); filter: brightness(1.04); }
.dd-search__btn:disabled { opacity: 0.45; cursor: not-allowed; box-shadow: none; }

.search-hint {
    color: var(--text-tertiary);
    font-size: 0.92rem;
    margin: var(--sp-3) var(--sp-2) 0;
    text-align: left;
}

.road-ribbon {
    position: relative;
    height: 86px;
    max-width: 840px;
    margin: var(--sp-8) auto 0;
    border-radius: 999px;
    background:
        linear-gradient(90deg, transparent 0 5%, rgba(255,255,255,0.14) 5% 7%, transparent 7% 12%) 0 50% / 150px 4px repeat-x,
        linear-gradient(180deg, #30394c, #151923);
    border: 1px solid var(--border-default);
    box-shadow: inset 0 10px 28px rgba(255,255,255,0.06), 0 24px 60px rgba(0,0,0,0.28);
    overflow: hidden;
}

.mini-car {
    position: absolute;
    left: 8%;
    top: 24px;
    font-size: 2rem;
    animation: carScoot 6s ease-in-out infinite;
}

@keyframes carScoot {
    0%, 100% { transform: translateX(0) rotate(-2deg); }
    50% { transform: translateX(560px) rotate(2deg); }
}

.traffic-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--sp-3);
    margin: 0 0 var(--sp-8);
}

.traffic-strip__item {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--sp-4);
    display: grid;
    gap: 0.1rem;
    box-shadow: 0 18px 44px rgba(0,0,0,0.15);
}

.traffic-strip__item span { font-size: 1.7rem; margin-bottom: 0.15rem; }
.traffic-strip__item strong { font-size: 1.05rem; letter-spacing: -0.02em; }
.traffic-strip__item small { color: var(--text-tertiary); font-weight: 600; }

.dd-section {
    margin-top: var(--sp-10);
}

.section-kicker {
    color: var(--accent-hover);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.78rem;
    margin-bottom: var(--sp-2);
}

.dd-section__title {
    font-size: clamp(1.8rem, 3.4vw, 3rem);
    line-height: 1;
    letter-spacing: -0.055em;
    margin-bottom: var(--sp-5);
    font-weight: 800;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--sp-4);
}

.feature-grid--two { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.dd-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--sp-5);
    transition: transform var(--duration) var(--ease-out), border-color var(--duration) var(--ease-out), background var(--duration) var(--ease-out), box-shadow var(--duration) var(--ease-out);
    box-shadow: 0 18px 50px rgba(0,0,0,0.16);
    backdrop-filter: blur(10px);
}

.dd-card:hover {
    transform: translateY(-3px);
    border-color: var(--border-default);
    background: var(--bg-card-hover);
    box-shadow: 0 24px 70px rgba(0,0,0,0.22);
}

.dd-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--sp-3);
}

.dd-card__title {
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.feature-card p,
.legal-card p,
.method-note {
    color: var(--text-secondary);
    font-size: 1rem;
}

.feature-card__icon {
    width: 54px;
    height: 54px;
    display: grid;
    place-items: center;
    background: var(--accent-subtle);
    border: 1px solid var(--border-subtle);
    border-radius: 18px;
    font-size: 1.8rem;
    margin-bottom: var(--sp-4);
}

.score-lights {
    padding: var(--sp-8);
    border-radius: var(--radius-xl);
    background:
        radial-gradient(circle at 10% 40%, rgba(255, 77, 94, 0.15), transparent 20rem),
        radial-gradient(circle at 90% 10%, rgba(39, 209, 127, 0.16), transparent 22rem),
        var(--bg-card);
    border: 1px solid var(--border-subtle);
    box-shadow: 0 22px 70px rgba(0,0,0,0.18);
}

.score-roadmap {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: var(--sp-3);
}

.score-token {
    position: relative;
    min-height: 128px;
    border-radius: 28px;
    padding: var(--sp-4);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.12);
    background: rgba(255,255,255,0.06);
}

.score-token::before {
    content: '';
    position: absolute;
    inset: auto var(--sp-4) 72px var(--sp-4);
    height: 18px;
    border-radius: 999px;
    background: currentColor;
    box-shadow: 0 0 30px currentColor;
}

.score-token strong {
    font-family: var(--font-mono);
    font-size: 1.35rem;
    color: var(--text-primary);
}

.score-token span { color: var(--text-secondary); font-weight: 700; }
.score-token--a { color: var(--score-a); }
.score-token--b { color: var(--score-b); }
.score-token--c { color: var(--score-c); }
.score-token--d { color: var(--score-d); }
.score-token--f { color: var(--score-f); }

.split-panel {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: var(--sp-5);
    align-items: center;
    padding: var(--sp-6);
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, var(--bg-card), color-mix(in srgb, var(--bg-card), var(--accent) 10%));
    border: 1px solid var(--border-subtle);
    box-shadow: 0 24px 70px rgba(0,0,0,0.18);
}

.split-panel--calm { background: var(--bg-card); }

.checklist-card {
    background: color-mix(in srgb, var(--bg-input), var(--accent) 7%);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--sp-4);
    display: grid;
    gap: var(--sp-3);
}

.checklist-card div {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    color: var(--text-secondary);
    font-weight: 700;
}

.content-hero {
    text-align: center;
    max-width: 940px;
    margin: 0 auto var(--sp-8);
    padding: var(--sp-8) 0 var(--sp-4);
}

.formula-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--sp-3);
    margin-bottom: var(--sp-4);
}

.formula-card {
    padding: var(--sp-4);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    display: grid;
    gap: 0.35rem;
}

.formula-card span { font-size: 1.55rem; }
.formula-card strong { letter-spacing: -0.02em; }
.formula-card em { color: var(--text-tertiary); font-style: normal; font-family: var(--font-mono); font-size: 0.82rem; }

.compare-teaser {
    margin: var(--sp-8) auto 0;
    max-width: 620px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: var(--sp-4);
}

.teaser-car {
    min-height: 170px;
    border-radius: var(--radius-xl);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    display: grid;
    place-items: center;
    font-size: 4rem;
    box-shadow: 0 22px 60px rgba(0,0,0,0.18);
}

.teaser-car span { display: block; font-size: 0.9rem; color: var(--text-tertiary); font-weight: 800; }

.teaser-vs {
    width: 62px;
    height: 62px;
    display: grid;
    place-items: center;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--hot), var(--sun));
    color: #111827;
    font-family: var(--font-mono);
    font-weight: 900;
    box-shadow: 0 18px 44px rgba(0,0,0,0.22);
}

.pill-link {
    display: inline-flex;
    padding: 0.75rem 1.1rem;
    border-radius: 999px;
    color: var(--text-inverse);
    background: var(--accent);
    font-weight: 800;
}

.dd-score-hero {
    text-align: center;
    padding: var(--sp-8) var(--sp-5);
    background:
        radial-gradient(circle at 50% 0%, currentColor, transparent 24rem),
        var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
    box-shadow: 0 26px 80px rgba(0,0,0,0.22);
}

.dd-score-hero::after {
    content: '';
    position: absolute;
    inset: auto 0 0;
    height: 80px;
    background:
        linear-gradient(90deg, transparent 0 8%, rgba(255,255,255,0.35) 8% 12%, transparent 12% 20%) 0 50% / 140px 5px repeat-x,
        linear-gradient(180deg, transparent, rgba(0,0,0,0.18));
    opacity: 0.5;
    pointer-events: none;
}

.score-excellent { color: rgba(39, 209, 127, 0.18); }
.score-good { color: rgba(155, 230, 63, 0.18); }
.score-average { color: rgba(255, 209, 102, 0.18); }
.score-below { color: rgba(255, 159, 28, 0.18); }
.score-risk { color: rgba(255, 77, 94, 0.18); }

.dd-score__number {
    font-size: clamp(4rem, 11vw, 7.5rem);
    font-weight: 900;
    letter-spacing: -0.08em;
    line-height: 0.9;
    font-family: var(--font-mono);
    position: relative;
    z-index: 1;
}
.score-excellent .dd-score__number { color: var(--score-a); }
.score-good .dd-score__number { color: var(--score-b); }
.score-average .dd-score__number { color: var(--score-c); }
.score-below .dd-score__number { color: var(--score-d); }
.score-risk .dd-score__number { color: var(--score-f); }

.dd-score__grade {
    font-size: 1.25rem;
    font-weight: 800;
    margin-top: var(--sp-2);
    color: var(--text-primary);
    position: relative;
    z-index: 1;
}

.dd-score__label {
    font-size: 0.9rem;
    color: var(--text-tertiary);
    margin-top: var(--sp-1);
    position: relative;
    z-index: 1;
}

.dd-score__vehicle-name {
    font-size: clamp(1.4rem, 3vw, 2rem);
    font-weight: 800;
    margin-bottom: var(--sp-5);
    letter-spacing: -0.04em;
    color: var(--text-primary);
    position: relative;
    z-index: 1;
}

.dd-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--sp-3);
    margin: var(--sp-5) 0;
}

.dd-stat {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--sp-4);
    text-align: center;
    box-shadow: 0 14px 38px rgba(0,0,0,0.12);
}

.dd-stat__value {
    font-family: var(--font-mono);
    font-size: clamp(1.55rem, 4vw, 2.35rem);
    font-weight: 800;
    letter-spacing: -0.05em;
    color: var(--text-primary);
}

.dd-stat__label {
    color: var(--text-tertiary);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-top: 0.2rem;
}

.dd-complaint-list {
    list-style: none;
    display: grid;
    gap: var(--sp-3);
}

.dd-complaint {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-left: 5px solid var(--accent);
    border-radius: var(--radius-lg);
    padding: var(--sp-4);
    box-shadow: 0 14px 38px rgba(0,0,0,0.12);
}

.dd-complaint--severe { border-left-color: var(--score-f); }

.dd-complaint__meta {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    margin-bottom: var(--sp-2);
    flex-wrap: wrap;
}

.dd-complaint__component {
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-inverse);
    background: var(--accent);
    padding: 0.25rem 0.55rem;
    border-radius: 999px;
}

.dd-complaint__date {
    font-size: 0.78rem;
    color: var(--text-tertiary);
    font-family: var(--font-mono);
}

.dd-complaint__badge {
    font-size: 0.68rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    background: rgba(255, 77, 94, 0.14);
    color: var(--score-f);
}

.dd-complaint__summary {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

.dd-recall {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--sp-4);
    border: 1px solid var(--border-subtle);
    border-left: 5px solid var(--score-d);
    margin-bottom: var(--sp-3);
    box-shadow: 0 14px 38px rgba(0,0,0,0.12);
}

.dd-recall__campaign {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-tertiary);
}

.dd-recall__component {
    font-weight: 800;
    font-size: 1rem;
    margin: var(--sp-1) 0;
}

.dd-recall__text {
    font-size: 0.93rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

.dd-chart-container,
.dd-chart-wrap {
    position: relative;
    width: 100%;
    max-width: 680px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--sp-4);
    box-shadow: 0 18px 44px rgba(0,0,0,0.14);
}

.dd-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--sp-12) 0;
    gap: var(--sp-4);
}

.dd-spinner {
    width: 46px;
    height: 46px;
    border: 5px solid var(--border-default);
    border-top-color: var(--accent);
    border-right-color: var(--sun);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.dd-loading__text {
    font-size: 1rem;
    color: var(--text-tertiary);
    font-weight: 700;
}

.dd-empty {
    text-align: center;
    padding: var(--sp-10) var(--sp-5);
    color: var(--text-tertiary);
}

.dd-empty__icon {
    font-size: 3.5rem;
    margin-bottom: var(--sp-3);
}

.dd-empty__title {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--sp-2);
}

.dd-star-btn {
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    font-size: 1.6rem;
    transition: transform var(--duration) var(--ease-out), color var(--duration) var(--ease-out);
}

.dd-star-btn:hover,
.dd-star-btn.active {
    color: var(--sun);
    transform: translateY(-2px) scale(1.08);
}

.dd-footer {
    border-top: 1px solid var(--border-subtle);
    margin-top: var(--sp-12);
    padding: var(--sp-8) var(--sp-5) var(--sp-6);
    background: linear-gradient(180deg, transparent, rgba(0,0,0,0.16));
}

.dd-footer__inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--sp-5);
    align-items: start;
}

.dd-footer__logo {
    font-weight: 900;
    font-size: 1.2rem;
    letter-spacing: -0.04em;
}

.dd-footer__brand p,
.dd-footer__legal p {
    color: var(--text-tertiary);
    font-size: 0.92rem;
    margin-top: var(--sp-2);
}

.dd-footer__links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-3);
    justify-content: flex-end;
}

.dd-footer__links a {
    color: var(--text-secondary);
    font-weight: 800;
}

.dd-footer__links a:hover { color: var(--accent-hover); }

.dd-footer__legal { grid-column: 1 / -1; }

.dd-bottom-nav {
    display: none;
    position: fixed;
    left: var(--sp-4);
    right: var(--sp-4);
    bottom: var(--sp-4);
    z-index: 99;
    grid-template-columns: repeat(4, 1fr);
    background: color-mix(in srgb, var(--bg-primary), transparent 8%);
    border: 1px solid var(--border-default);
    border-radius: 24px;
    box-shadow: 0 22px 70px rgba(0,0,0,0.36);
    backdrop-filter: blur(18px);
    overflow: hidden;
}

.dd-bottom-nav__item {
    display: grid;
    place-items: center;
    gap: 0.18rem;
    padding: 0.72rem 0.2rem;
    color: var(--text-tertiary);
    font-size: 0.72rem;
    font-weight: 800;
}

.dd-bottom-nav__item.active,
.dd-bottom-nav__item:hover {
    color: var(--accent-hover);
    background: var(--accent-subtle);
}

.dd-animate {
    animation: riseIn 0.7s var(--ease-out) both;
}
.dd-animate--d1 { animation-delay: 0.08s; }
.dd-animate--d2 { animation-delay: 0.16s; }
.dd-animate--d3 { animation-delay: 0.24s; }
.dd-animate--d4 { animation-delay: 0.32s; }

@keyframes riseIn {
    from { opacity: 0; transform: translateY(22px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
}

@media (max-width: 900px) {
    .dd-nav__links a:not(.nav-cta) { display: none; }
    .hero-dashboard { grid-template-columns: 1fr; }
    .signal-stack { display: none; }
    .dd-search__row { grid-template-columns: 1fr 1fr; }
    .dd-search__btn { grid-column: 1 / -1; }
    .traffic-strip { grid-template-columns: repeat(2, 1fr); }
    .feature-grid,
    .feature-grid--two,
    .formula-grid,
    .split-panel,
    .score-roadmap { grid-template-columns: 1fr; }
    .score-lights { padding: var(--sp-5); }
    .compare-teaser { grid-template-columns: 1fr; }
    .teaser-vs { margin: 0 auto; }
    @keyframes carScoot {
        0%, 100% { transform: translateX(0) rotate(-2deg); }
        50% { transform: translateX(260px) rotate(2deg); }
    }
}

@media (max-width: 640px) {
    :root { --nav-height: 62px; }
    .dd-main { padding: var(--sp-5) var(--sp-4) 6.6rem; }
    .dd-nav__inner { padding: 0 var(--sp-4); }
    .nav-cta { display: none; }
    .dd-hero { padding-top: var(--sp-10); }
    .dd-hero__title { font-size: clamp(2.55rem, 14vw, 4.2rem); }
    .dd-search__row { grid-template-columns: 1fr; border-radius: var(--radius-lg); }
    .search-hint { text-align: center; }
    .traffic-strip { grid-template-columns: 1fr; }
    .road-ribbon { height: 68px; }
    .mini-car { top: 17px; }
    .dd-footer__inner { grid-template-columns: 1fr; }
    .dd-footer__links { justify-content: flex-start; }
    .dd-bottom-nav { display: grid; }
    .dd-stat { padding: var(--sp-3); }
    .dd-section { margin-top: var(--sp-8); }
    .split-panel { padding: var(--sp-4); }
}