:root {
    --primary: #0d6efd;
    --primary-dark: #0a58ca;
    --text: #1f2937;
    --muted: #6b7280;
    --background: #f4f8ff;
    --white: #ffffff;
    --border: #d9e6ff;
    --shadow: 0 12px 30px rgba(13, 110, 253, 0.12);
    --radius: 18px;
}

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

body {
    font-family: Arial, sans-serif;
    color: var(--text);
    background: linear-gradient(180deg, #eef5ff 0%, #ffffff 100%);
    line-height: 1.6;
}

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

img {
    max-width: 100%;
    display: block;
}

ul {
    list-style: none;
}

.container {
    width: min(1120px, calc(100% - 2rem));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(13, 110, 253, 0.08);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 0;
}

.site-logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-list a {
    padding: 0.65rem 1rem;
    border-radius: 999px;
    font-weight: 600;
    color: var(--text);
    transition: 0.3s ease;
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--primary);
    background: rgba(13, 110, 253, 0.1);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: 0;
    cursor: pointer;
}

.menu-toggle span {
    width: 26px;
    height: 3px;
    border-radius: 50px;
    background: var(--primary);
}

.hero {
    padding: 5.5rem 0 4rem;
}

.hero-content {
    display: grid;
    gap: 2rem;
}

.hero-text {
    background: var(--white);
    border: 1px solid rgba(13, 110, 253, 0.12);
    border-radius: 28px;
    padding: 3rem;
    box-shadow: var(--shadow);
    text-align: center;
}

.eyebrow {
    display: inline-block;
    margin-bottom: 1rem;
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    background: rgba(13, 110, 253, 0.1);
    color: var(--primary);
    font-weight: 700;
    font-size: 0.9rem;
}

.hero h1,
.page-banner h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    line-height: 1.15;
    margin-bottom: 1rem;
}

.hero p,
.page-banner p,
.section-heading p,
.tool-card p,
.content-card p,
.contact-form,
.footer-content p {
    color: var(--muted);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.4rem;
    border-radius: 999px;
    font-weight: 700;
    transition: 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: rgba(13, 110, 253, 0.1);
    color: var(--primary);
}

.btn-secondary:hover {
    background: rgba(13, 110, 253, 0.18);
}

.page-banner,
.section {
    padding: 4rem 0;
}

.section-heading {
    text-align: center;
    margin-bottom: 2rem;
}

.section-heading h2,
.content-card h2 {
    margin-bottom: 0.75rem;
    font-size: 2rem;
}

.tool-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.5rem;
}

.tool-card,
.content-card,
.contact-form {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.tool-card {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.tool-icon {
    width: 58px;
    height: 58px;
    display: grid;
    place-items: center;
    border-radius: 16px;
    background: linear-gradient(135deg, #0d6efd, #66a6ff);
    color: var(--white);
    font-weight: 700;
    letter-spacing: 0.08em;
}

.contact-layout {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 1.1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.45rem;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    border: 1px solid #cddcff;
    border-radius: 14px;
    padding: 0.9rem 1rem;
    font: inherit;
    outline: none;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(13, 110, 253, 0.12);
}

.site-footer {
    margin-top: 2rem;
    padding: 1.5rem 0;
    background: #0d1d38;
    color: rgba(255, 255, 255, 0.8);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.footer-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.footer-links a:hover {
    color: var(--white);
}

@media (max-width: 900px) {
    .tool-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .contact-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .site-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        border-bottom: 1px solid rgba(13, 110, 253, 0.1);
        padding: 0 1rem 1rem;
        display: none;
    }

    .site-nav.is-open {
        display: block;
    }

    .nav-list {
        flex-direction: column;
        align-items: stretch;
        padding-top: 1rem;
    }

    .nav-list a {
        display: block;
        text-align: center;
    }

    .hero {
        padding-top: 4rem;
    }

    .hero-text {
        padding: 2rem;
    }
}

@media (max-width: 560px) {
    .tool-grid {
        grid-template-columns: 1fr;
    }

    .page-banner,
    .section {
        padding: 3rem 0;
    }
}