:root {
    --color-bg: #f4f8ff;
    --color-bg-panel: #e8f1fb;
    --color-bg-hero: linear-gradient(110deg, #e1f5fe 0%, #f4f8ff 70%, #c2f4ff 100%);
    --color-navy: #10213f;
    --color-cyan: #00bcd4;
    --color-lime: #a6e22e;
    --color-white: #fff;
    --color-border: #d8e3ef;
    --color-shadow: 0 2px 12px 0 rgba(16, 33, 63, 0.06);
    --color-footer-bg: #2d3042;
    --color-footer-text: #fff;
    --color-overlay: rgba(16, 33, 63, 0.65);
    --radius-lg: 24px;
    --radius-md: 14px;
    --radius-sm: 8px;
    --transition: 0.16s cubic-bezier(.4, .2, .2, 1);
    --font-stack: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html {
    box-sizing: border-box;
    font-size: 16px;
    scroll-behavior: smooth;
}

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

body {
    font-family: var(--font-stack);
    background: var(--color-bg);
    color: var(--color-navy);
    line-height: 1.2;
    margin: 0;
}

.site-header {
    background: var(--color-white);
    box-shadow: 0 1px 8px 0 rgba(16, 33, 63, 0.07);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 60;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 18px;
    height: 64px;
    gap: 40px;
}

.logo-link {
    display: flex;
    align-items: center;
    height: 42px;
}

.logo-link img {
    height: 38px;
    width: auto;
    display: block;
}

.main-nav {
    display: flex;
    align-items: center;
    position: relative;
}

.menu-list {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.menu-list>li {
    position: relative;
}

.menu-list>li>a {
    color: var(--color-navy);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: background var(--transition), color var(--transition);
    outline: none;
}

.menu-list>li>a:hover,
.menu-list>li>a:focus-visible {
    background: var(--color-bg-panel);
    color: var(--color-cyan);
}

.menu-list>li:focus-within>a {
    background: var(--color-bg-panel);
}


/* Dropdown menu */

.menu-list>li.has-submenu:hover>ul,
.menu-list>li.has-submenu:focus-within>ul {
    display: block;
}

.menu-list>li.has-submenu>ul {
    display: none;
    position: absolute;
    left: 0;
    top: 100%;
    min-width: 180px;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    box-shadow: 0 6px 24px 0 rgba(16, 33, 63, 0.12);
    border-radius: var(--radius-md);
    z-index: 10;
    margin-top: 10px;
    padding: 10px 0;
}

.menu-list>li.has-submenu>ul>li {
    width: 100%;
}

.menu-list>li.has-submenu>ul>li>a {
    padding: 10px 22px;
    display: block;
    font-size: 1rem;
    color: var(--color-navy);
    border-radius: 0;
    background: transparent;
    transition: background var(--transition), color var(--transition);
}

.menu-list>li.has-submenu>ul>li>a:hover,
.menu-list>li.has-submenu>ul>li>a:focus-visible {
    background: var(--color-bg-panel);
    color: var(--color-cyan);
}

.nav-toggle {
    display: inline-flex;
    flex-direction: column;
    gap: 5px;
    width: 38px;
    height: 38px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    margin-right: 0;
    border-radius: var(--radius-sm);
    transition: background var(--transition);
}

.nav-toggle:focus-visible {
    outline: 2px solid var(--color-cyan);
    outline-offset: 2px;
}

.nav-toggle-bar {
    display: block;
    width: 100%;
    height: 4px;
    background: var(--color-navy);
    border-radius: 2px;
    transition: all 0.22s cubic-bezier(.4, .2, .2, 1);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

.menu-list {
    display: none;
}

@media (min-width: 768px) {
    .menu-list {
        display: flex;
    }
    .nav-toggle {
        display: none;
    }
}

.site-main {
    min-height: 100vh;
    width: 100%;
    padding-bottom: 64px;
}

.hero-section {
    max-width: 900px;
    margin: 32px auto 44px auto;
    border-radius: var(--radius-lg);
    background: var(--color-bg-hero);
    box-shadow: var(--color-shadow);
    position: relative;
    overflow: hidden;
    padding: 42px 16px 46px 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-bg-shape {
    position: absolute;
    top: -40px;
    right: -80px;
    width: 360px;
    height: 220px;
    background: radial-gradient(circle at 70% 40%, #00bcd4 0%, #e1f5fe 70%, transparent 100%), repeating-linear-gradient(135deg, #a6e22e22 0 10px, transparent 10px 20px);
    opacity: 0.18;
    z-index: 1;
    pointer-events: none;
    border-radius: 60% 40% 50% 80%/40% 50% 60% 70%;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    text-align: center;
}

.hero-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-navy);
    margin: 0 0 26px 0;
    line-height: 1.18;
}

.hero-cta {
    margin-top: 0;
}

.cta-button {
    display: inline-block;
    padding: 10px 30px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-white);
    background: var(--color-cyan);
    border-radius: var(--radius-md);
    border: none;
    box-shadow: 0 2px 8px rgba(0, 188, 212, 0.08);
    cursor: pointer;
    text-decoration: none;
    transition: transform var(--transition), background var(--transition);
    outline: none;
    letter-spacing: 0.01em;
}

.cta-button:hover,
.cta-button:focus-visible {
    background: #009caf;
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 6px 18px 0 rgba(0, 188, 212, 0.18);
}

.cta-button:focus-visible {
    outline: 2px solid var(--color-lime);
    outline-offset: 2px;
}

.content-container {
    max-width: 760px;
    margin: 0 auto;
    padding: 0 16px 36px 16px;
}

.content-container>*:not(:last-child) {
    margin-bottom: 28px;
}

.content-container h2 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-navy);
    margin: 0 0 16px 0;
    line-height: 1.18;
}

.content-container h3 {
    font-size: 1.08rem;
    font-weight: 600;
    color: var(--color-navy);
    margin: 0 0 12px 0;
    line-height: 1.2;
}

.content-container p {
    font-size: 1rem;
    color: var(--color-navy);
    margin: 0 0 20px 0;
    line-height: 1.6;
}

.content-container .cta-button {
    display: flex;
    width: fit-content;
    text-align: center;
    margin: 0 auto 18px auto;
    font-size: 18px;
    padding: 10px 26px;
}

.content-container img,
.content-container .content-image {
    width: 100%;
    max-width: 100%;
    border-radius: var(--radius-md);
    box-shadow: 0 2px 8px 0 rgba(16, 33, 63, 0.06);
    margin: 18px 0 20px 0;
    display: block;
}

.content-container table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--color-bg-panel);
    border-radius: var(--radius-md);
    box-shadow: 0 2px 8px 0 rgba(16, 33, 63, 0.04);
    overflow: hidden;
    margin: 18px 0 24px 0;
    font-size: 0.99rem;
}

.content-container th,
.content-container td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-navy);
    text-align: left;
}

.content-container th {
    background: #f7faff;
    font-weight: 600;
    font-size: 1rem;
}

.content-container tr:last-child th,
.content-container tr:last-child td {
    border-bottom: none;
}

.content-container td {
    background: transparent;
}


/* Mobile menu */

.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    background: var(--color-overlay);
    opacity: 0;
    pointer-events: none;
    z-index: 80;
    transition: opacity var(--transition);
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100vw;
    width: 84vw;
    max-width: 340px;
    height: 100vh;
    background: var(--color-white);
    box-shadow: -2px 0 24px 0 rgba(16, 33, 63, 0.14);
    transition: right 0.28s cubic-bezier(.4, .2, .2, 1);
    z-index: 100;
    padding: 0 10px;
    overflow-y: auto;
    overscroll-behavior: contain;
    display: flex;
    flex-direction: column;
}

.mobile-menu.open {
    right: 0;
}

.mobile-menu-list {
    list-style: none;
    padding: 36px 0 12px 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.mobile-menu-list>li>a {
    display: block;
    padding: 13px 16px;
    color: var(--color-navy);
    font-size: 1.1rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-sm);
    background: none;
    transition: background var(--transition), color var(--transition);
    outline: none;
}

.mobile-menu-list>li>a:hover,
.mobile-menu-list>li>a:focus-visible {
    background: var(--color-bg-panel);
    color: var(--color-cyan);
}

.mobile-menu-list>li.has-submenu>button {
    display: inline-flex;
    align-items: center;
    background: none;
    border: none;
    color: var(--color-navy);
    padding: 13px 16px;
    font-size: 1.1rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
}

.mobile-menu-list>li.has-submenu>button:after {
    content: '';
    display: inline-block;
    margin-left: 10px;
    border: solid var(--color-cyan);
    border-width: 0 2px 2px 0;
    padding: 4px;
    transform: rotate(45deg);
    transition: transform 0.16s;
}

.mobile-menu-list>li.has-submenu.open>button:after {
    transform: rotate(-135deg);
}

.mobile-menu-list>li.has-submenu>ul {
    display: none;
    flex-direction: column;
    margin-left: 10px;
    margin-top: 2px;
    border-left: 2px solid var(--color-bg-panel);
    padding-left: 8px;
    background: none;
    box-shadow: none;
    border-radius: 0;
    position: static;
    min-width: 0;
}

.mobile-menu-list>li.has-submenu.open>ul {
    display: flex;
}

.mobile-menu-list>li.has-submenu>ul>li>a {
    padding: 11px 10px 11px 18px;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    color: var(--color-navy);
    background: none;
}

.mobile-menu-list>li.has-submenu>ul>li>a:hover,
.mobile-menu-list>li.has-submenu>ul>li>a:focus-visible {
    background: var(--color-bg-panel);
    color: var(--color-cyan);
}

.mobile-menu.open {
    right: 0;
}

.mobile-menu-overlay.open {
    opacity: 1;
    pointer-events: all;
}

body.menu-open {
    overflow: hidden;
    touch-action: none;
}

.site-footer {
    background: var(--color-footer-bg);
    color: var(--color-footer-text);
    padding: 22px 0 16px 0;
    margin-top: 36px;
}

.footer-container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 18px;
    text-align: center;
    font-size: 1rem;
    letter-spacing: 0.01em;
    font-weight: 400;
}


/* Focus-visible for all interactive elements */

a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid var(--color-cyan);
    outline-offset: 2px;
}


/* Responsive adjustments */

@media (min-width: 768px) {
    .header-container {
        padding: 0 32px;
        height: 74px;
    }
    .hero-section {
        padding: 58px 38px 62px 38px;
        margin: 46px auto 56px auto;
    }
    .content-container {
        padding: 0 32px 46px 32px;
    }
}

@media (min-width: 1024px) {
    .header-container {
        max-width: 1260px;
    }
    .content-container {
        max-width: 820px;
        padding-bottom: 64px;
    }
    .hero-section {
        max-width: 1040px;
        margin: 60px auto 68px auto;
    }
}