:root {
    --bg: #07050d;
    --bg-soft: #0f0b1a;
    --card: rgba(255, 255, 255, 0.065);
    --card-border: rgba(255, 255, 255, 0.12);
    --text: #f6f2ff;
    --muted: #b8adc9;
    --accent: #7B3FE4;
    --accent-2: #a77cff;
    --danger: #ff6b6b;
    --success: #77e29a;
    --radius: 24px;
    --shadow: 0 30px 90px rgba(0, 0, 0, 0.35);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at top left, rgba(123, 63, 228, 0.35), transparent 32rem),
        radial-gradient(circle at 80% 20%, rgba(167, 124, 255, 0.16), transparent 24rem),
        var(--bg);
    color: var(--text);
    line-height: 1.6;
}

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

.container {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(7, 5, 13, 0.78);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav {
    min-height: 74px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    letter-spacing: -0.04em;
    font-size: 1.25rem;
}

.logo-mark {
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    box-shadow: 0 12px 34px rgba(123, 63, 228, 0.35);
}

.accent {
    color: var(--accent-2);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-links a {
    padding: 10px 14px;
    border-radius: 999px;
    color: var(--muted);
    transition: 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text);
    background: rgba(255, 255, 255, 0.08);
}

.nav-toggle {
    display: none;
    background: var(--card);
    color: var(--text);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 8px 12px;
    font-size: 1.2rem;
}

.hero,
.calculator-hero {
    padding: 76px 0 48px;
}

.hero {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 34px;
    align-items: center;
}

.eyebrow {
    color: var(--accent-2);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.78rem;
    margin: 0 0 14px;
}

h1,
h2,
h3 {
    line-height: 1.08;
    letter-spacing: -0.055em;
    margin-top: 0;
}

h1 {
    font-size: clamp(2.45rem, 7vw, 5.25rem);
    max-width: 850px;
    margin-bottom: 18px;
}

h2 {
    font-size: clamp(1.9rem, 4vw, 3.2rem);
    margin-bottom: 16px;
}

h3 {
    font-size: 1.25rem;
}

.hero-text,
.calculator-hero p,
.section p {
    color: var(--muted);
    font-size: 1.05rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 30px;
}

.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    min-height: 48px;
    padding: 0 20px;
    border-radius: 999px;
    font-weight: 800;
    border: 0;
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn.primary {
    color: white;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    box-shadow: 0 16px 34px rgba(123, 63, 228, 0.35);
}

.btn.secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text);
    border: 1px solid var(--card-border);
}

.btn.full {
    width: 100%;
}

.trust-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
}

.trust-row span {
    color: var(--muted);
    border: 1px solid var(--card-border);
    background: rgba(255, 255, 255, 0.045);
    padding: 8px 12px;
    border-radius: 999px;
    font-size: 0.9rem;
}

.glass-card,
.feature-card,
.blog-card,
.notice-card {
    border: 1px solid var(--card-border);
    background: linear-gradient(180deg, rgba(255,255,255,0.085), rgba(255,255,255,0.035));
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.hero-card {
    padding: 26px;
}

.hero-card p {
    color: var(--muted);
    margin: 10px 0;
}

.hero-card strong {
    color: var(--text);
}

.mini-chart {
    height: 160px;
    display: flex;
    align-items: end;
    gap: 14px;
    margin-bottom: 20px;
}

.mini-chart span {
    flex: 1;
    min-height: 24px;
    border-radius: 16px 16px 5px 5px;
    background: linear-gradient(180deg, var(--accent-2), var(--accent));
}

.small-muted {
    color: var(--muted);
    font-size: 0.92rem;
}

.section {
    padding: 52px 0;
}

.cards-grid,
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.feature-card,
.blog-card,
.notice-card {
    padding: 24px;
}

.feature-card p,
.blog-card p {
    color: var(--muted);
}

.split-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: center;
}

.roadmap {
    display: grid;
    gap: 12px;
}

.roadmap div {
    padding: 18px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.065);
    border: 1px solid var(--card-border);
}

.roadmap span {
    display: inline-grid;
    place-items: center;
    width: 34px;
    height: 34px;
    margin-right: 10px;
    border-radius: 50%;
    background: rgba(123, 63, 228, 0.25);
    color: var(--accent-2);
    font-weight: 800;
}

.blog-card span {
    color: var(--accent-2);
    font-weight: 700;
    font-size: 0.85rem;
}

.blog-card a {
    color: var(--accent-2);
    font-weight: 800;
}

.calculator-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.9fr);
    gap: 22px;
    align-items: start;
    padding-bottom: 42px;
}

.calc-form,
.results {
    padding: 24px;
}

.results {
    position: sticky;
    top: 96px;
}

.form-section {
    padding-bottom: 22px;
    margin-bottom: 22px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.form-section:last-child {
    border-bottom: 0;
    margin-bottom: 0;
    padding-bottom: 0;
}

label {
    display: grid;
    gap: 8px;
    color: var(--muted);
    margin-bottom: 16px;
    font-weight: 650;
}

input,
select {
    width: 100%;
    min-height: 48px;
    border: 1px solid rgba(255,255,255,0.14);
    background: rgba(0,0,0,0.28);
    color: var(--text);
    border-radius: 16px;
    padding: 0 14px;
    outline: none;
    font-size: 1rem;
}

input:focus,
select:focus {
    border-color: var(--accent-2);
    box-shadow: 0 0 0 4px rgba(123, 63, 228, 0.18);
}

.two-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.toggle-line {
    display: flex;
    align-items: center;
    gap: 10px;
}

.toggle-line input {
    width: 18px;
    min-height: 18px;
    accent-color: var(--accent);
}

.result-main {
    padding: 20px;
    border-radius: 20px;
    background: rgba(123, 63, 228, 0.18);
    border: 1px solid rgba(167, 124, 255, 0.25);
    margin: 18px 0;
}

.result-main span,
.annual-box span {
    display: block;
    color: var(--muted);
}

.result-main strong {
    display: block;
    font-size: clamp(2rem, 5vw, 3rem);
    letter-spacing: -0.06em;
}

.secondary-result {
    background: rgba(255, 255, 255, 0.055);
}

.breakdown {
    display: grid;
    gap: 8px;
    margin-top: 20px;
}

.breakdown-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    color: var(--muted);
}

.breakdown-row strong {
    color: var(--text);
    white-space: nowrap;
}

.annual-box {
    margin-top: 24px;
    padding: 18px;
    border-radius: 18px;
    background: rgba(255,255,255,0.055);
}

.annual-box strong {
    font-size: 1.7rem;
}

.negative {
    color: var(--danger);
}

.error {
    color: var(--danger);
}

.site-footer {
    margin-top: 40px;
    padding: 44px 0;
    border-top: 1px solid rgba(255,255,255,0.08);
    background: rgba(0,0,0,0.18);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 1fr;
    gap: 24px;
}

.footer-grid p,
.footer-grid li {
    color: var(--muted);
}

.footer-grid ul {
    padding-left: 18px;
}

.footer-logo {
    margin-bottom: 12px;
}

@media (max-width: 860px) {
    .hero,
    .split-section,
    .calculator-layout,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .cards-grid,
    .blog-grid {
        grid-template-columns: 1fr;
    }

    .results {
        position: static;
    }

    .nav-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 74px;
        left: 16px;
        right: 16px;
        padding: 14px;
        border-radius: 20px;
        background: rgba(15, 11, 26, 0.96);
        border: 1px solid var(--card-border);
        flex-direction: column;
        align-items: stretch;
    }

    .nav-links.open {
        display: flex;
    }
}

@media (max-width: 560px) {
    .hero,
    .calculator-hero {
        padding-top: 46px;
    }

    .two-cols {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .calc-form,
    .results,
    .feature-card,
    .blog-card,
    .notice-card {
        padding: 18px;
    }
}