:root {
    --color-bg: #f7f8fc;
    --color-surface: #ffffff;
    --color-text: #14161f;
    --color-text-muted: #5c6472;
    --color-border: #e6e9f0;
    --color-accent: #2563eb;
    --color-accent-hover: #1d4ed8;
    --color-accent-soft: #eef4ff;
    --color-green: #16a34a;
    --color-green-soft: #e9faf0;
    --color-ink: #0d1220;
    --color-ink-2: #151b2e;
    --color-ink-text: #eef1f8;

    --grad-brand: linear-gradient(135deg, #2563eb 0%, #1e9e5a 100%);
    --grad-brand-soft: linear-gradient(135deg, rgba(37, 99, 235, 0.12) 0%, rgba(22, 163, 74, 0.12) 100%);
    --grad-ink: linear-gradient(135deg, #10162a 0%, #0c1424 60%, #0a1a1c 100%);

    --font-sans: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-2xl: 28px;

    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 24px;
    --spacing-2xl: 32px;
    --spacing-3xl: 48px;
    --spacing-4xl: 72px;

    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 24px 60px rgba(15, 23, 42, 0.14);

    --container: 1140px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
    line-height: 1.15;
    letter-spacing: -0.02em;
}

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

a:hover {
    text-decoration: none;
}

img {
    max-width: 100%;
}

.container {
    width: min(100% - 2 * var(--spacing-xl), var(--container));
    margin-inline: auto;
}

.text-gradient {
    color: var(--color-accent);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 11px 18px;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.2;
    border: 1px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    transition: transform 0.12s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
    text-decoration: none;
}

.btn:active {
    transform: translateY(1px);
}

.btn svg {
    width: 18px;
    height: 18px;
}

.btn-sm {
    padding: 8px 14px;
    font-size: 14px;
}

.btn-lg {
    padding: 14px 24px;
    font-size: 16px;
}

.btn-primary {
    background: var(--color-accent);
    color: #fff;
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.22);
}

.btn-primary:hover {
    color: #fff;
    background: var(--color-accent-hover);
    box-shadow: 0 12px 26px rgba(37, 99, 235, 0.28);
}

.btn-outline {
    background: var(--color-surface);
    color: var(--color-text);
    border-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.btn-outline:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-white {
    background: #fff;
    color: var(--color-ink);
}

.btn-white:hover {
    color: var(--color-accent);
}

.btn-glass {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.28);
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
}

/* ---------- Header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    min-height: 66px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--color-text);
    font-weight: 700;
}

.brand-logo {
    width: 38px;
    height: 38px;
    object-fit: contain;
    flex-shrink: 0;
    border-radius: var(--radius-md);
}

.brand-name {
    font-size: 18px;
    letter-spacing: -0.01em;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.header-nav a:not(.btn) {
    color: var(--color-text-muted);
    font-size: 15px;
    font-weight: 500;
}

.header-nav a:not(.btn):hover {
    color: var(--color-text);
}

.nav-toggle,
.nav-toggle-btn {
    display: none;
}

/* ---------- Hero ---------- */
.hero {
    position: relative;
    padding: var(--spacing-4xl) 0;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image: radial-gradient(var(--color-border) 1px, transparent 1px);
    background-size: 22px 22px;
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
    mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
    opacity: 0.6;
}

.hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 6px 14px;
    border-radius: 999px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
}

.pill-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-green);
}

.hero h1 {
    margin: 0 0 var(--spacing-lg);
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 800;
}

.hero-lead {
    margin: 0 0 var(--spacing-2xl);
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--color-text-muted);
    max-width: 54ch;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.hero-checks {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin: 0;
    padding: 0;
    list-style: none;
    font-size: 14px;
    color: var(--color-text-muted);
}

.hero-checks li {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.check {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-green-soft);
    color: var(--color-green);
    font-size: 11px;
    font-weight: 700;
}

/* ---------- Hero preview card ---------- */
.hero-panel {
    position: relative;
    display: flex;
    justify-content: center;
}

.preview-card {
    width: 100%;
    max-width: 420px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    display: grid;
    gap: var(--spacing-lg);
    animation: floaty 6s ease-in-out infinite;
}

@keyframes floaty {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.preview-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.preview-title {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: 15px;
}

.preview-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-accent);
}

.preview-tabs {
    display: inline-flex;
    gap: 4px;
    background: var(--color-bg);
    border-radius: 999px;
    padding: 3px;
}

.preview-tab {
    font-size: 11px;
    font-weight: 600;
    color: var(--color-text-muted);
    padding: 4px 10px;
    border-radius: 999px;
}

.preview-tab.active {
    background: var(--color-surface);
    color: var(--color-accent);
    box-shadow: var(--shadow-sm);
}

.preview-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.preview-stat {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    display: grid;
    gap: 2px;
}

.preview-stat-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
}

.preview-stat-value {
    font-size: 18px;
    font-weight: 700;
}

.preview-trend {
    font-size: 11px;
    font-weight: 600;
    color: var(--color-text-muted);
}

.preview-trend.up {
    color: var(--color-green);
}

.preview-chart {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    height: 96px;
    padding: var(--spacing-md);
    background: var(--color-bg);
    border-radius: var(--radius-lg);
}

.preview-chart span {
    flex: 1;
    border-radius: 4px 4px 0 0;
    background: var(--color-accent);
    opacity: 0.85;
}

.preview-rows {
    display: grid;
    gap: var(--spacing-sm);
}

.preview-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 13px;
}

.preview-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent-soft);
    color: var(--color-accent);
    font-weight: 700;
    font-size: 12px;
}

.preview-row-main {
    flex: 1;
    font-weight: 500;
}

.preview-badge {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 999px;
}

.preview-badge.success {
    background: var(--color-green-soft);
    color: var(--color-green);
}

.preview-badge.warn {
    background: #fff3e0;
    color: #c2660a;
}

/* ---------- Trust strip ---------- */
.trust-strip {
    border-block: 1px solid var(--color-border);
    background: var(--color-surface);
    padding: var(--spacing-lg) 0;
}

.trust-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    text-align: center;
}

.trust-label {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
}

.trust-tags {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
}

/* ---------- Sections ---------- */
.eyebrow {
    display: inline-block;
    margin-bottom: var(--spacing-md);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-accent);
}

.section-heading {
    max-width: 640px;
    margin-bottom: var(--spacing-3xl);
}

.section-heading.center {
    margin-inline: auto;
    text-align: center;
}

.section-heading h2 {
    margin: 0 0 var(--spacing-md);
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 800;
}

.section-heading p {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 17px;
}

.features {
    padding: var(--spacing-4xl) 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: color-mix(in srgb, var(--color-accent) 25%, var(--color-border));
}

.feature-card h3 {
    margin: 0 0 var(--spacing-sm);
    font-size: 18px;
    font-weight: 700;
}

.feature-card p {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 15px;
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    background: var(--color-accent-soft);
    color: var(--color-accent);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

/* ---------- How it works ---------- */
.how {
    padding: var(--spacing-4xl) 0;
    background: var(--color-surface);
    border-block: 1px solid var(--color-border);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-xl);
}

.step-card {
    position: relative;
    padding: var(--spacing-2xl) var(--spacing-xl) var(--spacing-xl);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: var(--color-bg);
}

.step-num {
    position: absolute;
    top: calc(-1 * var(--spacing-lg));
    left: var(--spacing-xl);
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--color-accent);
    color: #fff;
    font-weight: 800;
    box-shadow: 0 8px 18px rgba(37, 99, 235, 0.22);
}

.step-card h3 {
    margin: var(--spacing-sm) 0 var(--spacing-sm);
    font-size: 18px;
    font-weight: 700;
}

.step-card p {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 15px;
}

/* ---------- Stats band ---------- */
.stats-band {
    padding: var(--spacing-3xl) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    text-align: center;
}

.stat-item {
    display: grid;
    gap: 4px;
}

.stat-num {
    font-size: clamp(1.4rem, 2.5vw, 1.9rem);
    font-weight: 800;
    color: var(--color-ink);
}

.stat-cap {
    font-size: 14px;
    color: var(--color-text-muted);
}

/* ---------- CTA band ---------- */
.cta-band {
    padding: var(--spacing-3xl) 0;
}

.cta-inner {
    background: var(--grad-ink);
    border-radius: var(--radius-2xl);
    padding: clamp(var(--spacing-2xl), 5vw, var(--spacing-4xl));
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-2xl);
    flex-wrap: wrap;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.cta-inner::before {
    content: "";
    position: absolute;
    width: 300px;
    height: 300px;
    top: -120px;
    right: -60px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.4), transparent 70%);
    filter: blur(40px);
}

.cta-text {
    position: relative;
    z-index: 1;
}

.cta-inner h2 {
    margin: 0 0 var(--spacing-sm);
    color: #fff;
    font-size: clamp(1.5rem, 3vw, 2.1rem);
    font-weight: 800;
}

.cta-inner p {
    margin: 0;
    color: #b9c2d6;
    font-size: 16px;
}

.cta-actions {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

/* ---------- Footer ---------- */
.site-footer {
    background: var(--color-ink);
    color: var(--color-ink-text);
    padding-top: var(--spacing-4xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    padding-bottom: var(--spacing-3xl);
}

.footer-tagline {
    margin: var(--spacing-md) 0 0;
    color: #97a1b6;
    font-size: 14px;
    max-width: 32ch;
}

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: #fff;
    font-size: 18px;
}

.footer-brand .brand-logo {
    width: 32px;
    height: 32px;
}

.footer-heading {
    margin: 0 0 var(--spacing-lg);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #7c869c;
}

.footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: var(--spacing-md);
}

.footer-links a {
    color: #c3cbdb;
    font-size: 14px;
}

.footer-links a:hover {
    color: #fff;
}

.footer-bottom {
    padding: var(--spacing-lg) 0 var(--spacing-2xl);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 13px;
    color: #7c869c;
}

/* ---------- Legal pages ---------- */
.legal-page {
    padding: var(--spacing-4xl) 0;
}

.legal-content {
    max-width: 780px;
    margin-inline: auto;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: clamp(var(--spacing-xl), 4vw, var(--spacing-3xl));
    box-shadow: var(--shadow-sm);
}

.legal-content h1 {
    margin-top: 0;
    font-size: 2rem;
    font-weight: 800;
}

.legal-content h2 {
    margin-top: var(--spacing-2xl);
    font-size: 1.3rem;
    font-weight: 700;
}

.legal-content ul {
    padding-left: var(--spacing-xl);
}

.legal-content li {
    margin-bottom: var(--spacing-sm);
}

.legal-updated {
    color: var(--color-text-muted);
    font-size: 14px;
}

.alert-banner {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    background: #fff3e0;
    border: 1px solid #ffd8a8;
    color: #b45309;
    font-size: 14px;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-3xl);
    }

    .hero-panel {
        order: -1;
    }

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

@media (max-width: 640px) {
    .nav-toggle-btn {
        display: inline-flex;
        flex-direction: column;
        justify-content: center;
        gap: 5px;
        width: 42px;
        height: 42px;
        padding: 10px;
        border-radius: var(--radius-md);
        border: 1px solid var(--color-border);
        background: var(--color-surface);
        cursor: pointer;
    }

    .nav-toggle-btn span {
        display: block;
        height: 2px;
        border-radius: 2px;
        background: var(--color-text);
        transition: transform 0.2s ease, opacity 0.2s ease;
    }

    .header-nav {
        position: absolute;
        top: 66px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
        padding: var(--spacing-lg);
        background: var(--color-surface);
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
        transform: translateY(-8px);
        opacity: 0;
        pointer-events: none;
        transition: transform 0.18s ease, opacity 0.18s ease;
    }

    .nav-toggle:checked ~ .header-nav {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .header-nav a:not(.btn) {
        padding: var(--spacing-sm) 0;
    }

    .nav-toggle:checked ~ .nav-toggle-btn span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle:checked ~ .nav-toggle-btn span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle:checked ~ .nav-toggle-btn span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .cta-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .hero-checks {
        gap: var(--spacing-md);
    }
}

@media (prefers-reduced-motion: reduce) {
    .preview-card {
        animation: none;
    }
}