:root {
    --bg: #09111f;
    --bg-soft: #0f1a2f;
    --surface: rgba(255, 255, 255, 0.08);
    --surface-strong: rgba(255, 255, 255, 0.14);
    --text: #edf3ff;
    --muted: #b8c7df;
    --primary: #68a4ff;
    --secondary: #8a77ff;
    --success: #74d99f;
    --danger: #ff9a9a;
    --border: rgba(255, 255, 255, 0.12);
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.26);
    --radius: 14px;
    --radius-lg: 24px;
    --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: 'Instrument Sans', Arial, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(104, 164, 255, 0.22), transparent 30%),
        radial-gradient(circle at top right, rgba(138, 119, 255, 0.18), transparent 28%),
        linear-gradient(180deg, #08111f 0%, #09111c 100%);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
svg { width: 100%; height: 100%; fill: currentColor; }
h1, h2, h3, h4, strong { font-family: 'Manrope', Arial, sans-serif; }
p { line-height: 1.8; color: var(--muted); }
.container { width: min(var(--container), calc(100% - 2rem)); margin: 0 auto; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(9, 17, 31, 0.78);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.nav-wrap {
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.9rem;
}
.brand small, .mini-text, .meta-line { color: var(--muted); font-size: 0.9rem; }
.brand-mark, .icon-box {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    color: #fff;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    box-shadow: 0 12px 30px rgba(104, 164, 255, 0.28);
}
.main-nav { display: flex; gap: 0.5rem; }
.main-nav a {
    padding: 0.75rem 1rem;
    border-radius: 999px;
    color: var(--muted);
}
.main-nav a:hover, .main-nav a.active {
    background: var(--surface);
    color: #fff;
}
.mobile-toggle { display: none; background: transparent; border: 0; }
.mobile-toggle span { display: block; width: 24px; height: 2px; background: #fff; margin: 5px 0; }

.breadcrumbs {
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(255, 255, 255, 0.02);
}
.breadcrumbs .container {
    padding: 0.9rem 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    color: var(--muted);
    font-size: 0.92rem;
}
.breadcrumbs-separator { opacity: 0.6; }

.hero, .page-hero { padding: 4rem 0 2rem; }
.hero-panel, .card, .tool-card, .feature-card, .faq-card, .form-card, .content-card, .ad-placeholder {
    border: 1px solid var(--border);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.05));
    backdrop-filter: blur(16px);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}
.hero-panel { padding: 2.5rem; }
.hero-grid, .two-col, .tool-layout {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 1.5rem;
    align-items: center;
}
.tool-layout { align-items: start; }
.hero h1, .page-hero h1 { font-size: clamp(2.4rem, 6vw, 4.6rem); line-height: 1.03; letter-spacing: -0.04em; margin: 1rem 0; }
.eyebrow, .pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    font-size: 0.85rem;
    background: var(--surface);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--muted);
}
.eyebrow-icon { width: 16px; height: 16px; color: var(--primary); }
.button-row { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 1.5rem; }
.btn, button, input[type="submit"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0.9rem 1.35rem;
    border-radius: 14px;
    border: 1px solid transparent;
    font-weight: 600;
    cursor: pointer;
}
.btn-primary, button, input[type="submit"] {
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
}
.btn-secondary {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.12);
    color: #fff;
}

.section { padding: 1rem 0 4rem; }
.section-header { max-width: 760px; margin-bottom: 1.7rem; }
.grid-3, .grid-4, .tool-grid, .blog-grid, .feature-grid, .faq-grid {
    display: grid;
    gap: 1.2rem;
}
.grid-3, .tool-grid, .blog-grid, .feature-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4, .faq-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.tool-card, .content-card, .feature-card, .faq-card, .form-card { padding: 1.5rem; }
.tool-card h3, .content-card h3, .feature-card h3, .faq-card h3 { margin-bottom: 0.7rem; }
.stat-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.stat-card {
    padding: 1.25rem;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
}
.stat-card strong { display: block; font-size: 1.9rem; margin-bottom: 0.4rem; }

input, select, textarea {
    width: 100%;
    padding: 0.95rem 1rem;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
    font: inherit;
}
textarea { min-height: 160px; resize: vertical; }
.field-group { margin-bottom: 1rem; }
.result-box {
    padding: 1.4rem;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
}
.result-highlight { font-size: 2rem; margin: 0.5rem 0; }
.content-flow, .faq-flow { display: grid; gap: 1rem; }
ul { color: var(--muted); line-height: 1.8; }
.ad-placeholder {
    min-height: 110px;
    display: grid;
    place-items: center;
    padding: 1rem;
    text-align: center;
    color: var(--muted);
}
.success-message, .error-message {
    padding: 1rem 1.2rem;
    border-radius: 14px;
    margin-bottom: 1rem;
}
.success-message { background: rgba(116, 217, 159, 0.12); border: 1px solid rgba(116, 217, 159, 0.26); }
.error-message { background: rgba(255, 154, 154, 0.12); border: 1px solid rgba(255, 154, 154, 0.26); }

.site-footer {
    margin-top: 3rem;
    padding: 4rem 0 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr; gap: 1.5rem; }
.footer-grid a, .footer-grid p { display: block; margin-bottom: 0.8rem; }
.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2rem;
    padding-top: 1.2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

@media (max-width: 1024px) {
    .hero-grid, .two-col, .tool-layout, .footer-grid, .grid-3, .grid-4, .tool-grid, .blog-grid, .feature-grid, .faq-grid {
        grid-template-columns: 1fr 1fr;
    }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
    .container { width: min(var(--container), calc(100% - 1.2rem)); }
    .mobile-toggle { display: block; }
    .main-nav {
        position: absolute;
        top: 78px;
        left: 0.6rem;
        right: 0.6rem;
        display: none;
        flex-direction: column;
        padding: 1rem;
        border-radius: 18px;
        background: rgba(9, 17, 31, 0.96);
        border: 1px solid rgba(255, 255, 255, 0.08);
    }
    .main-nav.open { display: flex; }
    .hero-grid, .two-col, .tool-layout, .grid-3, .grid-4, .tool-grid, .blog-grid, .feature-grid, .faq-grid, .footer-grid, .stat-grid {
        grid-template-columns: 1fr;
    }
    .hero-panel { padding: 1.4rem; }
    .button-row { flex-direction: column; }
    .btn, button, input[type="submit"] { width: 100%; }
}