:root {
    --color-primary: #6d4aff;
    --color-primary-dark: #4f35cc;
    --color-secondary: #f04aa4;
    --color-accent: #ff8a3d;
    --color-teal: #12b8b3;
    --color-text: #15151f;
    --color-text-muted: #66667a;
    --color-background: #ffffff;
    --color-background-soft: #f7f5ff;
    --color-background-warm: #fff8f1;
    --color-background-dark: #12101f;
    --color-border: rgba(21, 21, 31, 0.1);
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 32px;
    --radius-pill: 999px;
    --shadow-sm: 0 10px 30px rgba(50, 35, 120, 0.08);
    --shadow-md: 0 20px 60px rgba(50, 35, 120, 0.14);
    --container-width: 1180px;
    --transition-fast: 180ms ease;
    --transition-default: 320ms ease;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--color-text);
    background:
        radial-gradient(circle at 12% 4%, rgba(18, 184, 179, 0.13), transparent 26%),
        radial-gradient(circle at 88% 0%, rgba(240, 74, 164, 0.15), transparent 30%),
        var(--color-background-soft);
    font-family: Inter, "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

body.nav-open {
    overflow: hidden;
}

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

button,
input {
    font: inherit;
}

:focus-visible {
    outline: 3px solid rgba(109, 74, 255, 0.45);
    outline-offset: 3px;
}

.skip-link {
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 2000;
    padding: 10px 14px;
    border-radius: var(--radius-pill);
    background: var(--color-text);
    color: #fff;
    transform: translateY(-160%);
}

.skip-link:focus {
    transform: translateY(0);
}

.container {
    width: min(100% - 40px, var(--container-width));
    margin: 0 auto;
}

.site-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 1000;
    padding: 18px 0;
    transition: background var(--transition-default), box-shadow var(--transition-default), padding var(--transition-default);
}

.site-header.is-scrolled,
.site-header.is-open {
    padding: 12px 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(18px);
    box-shadow: var(--shadow-sm);
}

.site-header__content {
    display: flex;
    align-items: center;
    gap: 22px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--color-text);
    font-size: 24px;
    font-weight: 800;
    letter-spacing: 0;
}

.brand__mark {
    display: grid;
    width: 40px;
    height: 40px;
    place-items: center;
    border-radius: 11px;
    color: #fff;
    font-size: 15px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    box-shadow: 0 10px 24px rgba(109, 74, 255, 0.25);
}

.site-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 26px;
    margin-left: auto;
    color: var(--color-text-muted);
    font-size: 15px;
    font-weight: 700;
}

.site-nav a:hover {
    color: var(--color-primary);
}

.button {
    display: inline-flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-pill);
    border: 1px solid transparent;
    padding: 12px 22px;
    font-weight: 800;
}

.button--primary {
    color: #fff;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    box-shadow: 0 16px 36px rgba(109, 74, 255, 0.28);
}

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    background: #fff;
    color: var(--color-text);
}

.page-hero {
    padding: 138px 0 74px;
    background:
        radial-gradient(circle at 80% 15%, rgba(240, 74, 164, 0.2), transparent 28%),
        radial-gradient(circle at 18% 24%, rgba(18, 184, 179, 0.15), transparent 28%),
        linear-gradient(140deg, #fff 0%, #f7f5ff 58%, #fff8f1 100%);
    text-align: center;
}

.eyebrow {
    margin: 0 0 14px;
    color: var(--color-primary-dark);
    font-size: 13px;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.page-hero h1 {
    max-width: 820px;
    margin: 0 auto;
    color: var(--color-text);
    font-size: clamp(42px, 7vw, 76px);
    line-height: 1.04;
    letter-spacing: 0;
}

.page-hero p:not(.eyebrow) {
    max-width: 760px;
    margin: 22px auto 0;
    color: var(--color-text-muted);
    font-size: 20px;
}

.support-search {
    position: relative;
    max-width: 640px;
    margin: 34px auto 0;
}

.search-input {
    width: 100%;
    min-height: 58px;
    border: 1px solid rgba(109, 74, 255, 0.16);
    border-radius: var(--radius-pill);
    padding: 16px 22px 16px 52px;
    background: rgba(255, 255, 255, 0.9);
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
}

.search-icon {
    position: absolute;
    top: 50%;
    left: 22px;
    color: var(--color-primary);
    transform: translateY(-50%);
}

.support-content {
    padding: 76px 0 96px;
}

.content-container {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 34px;
    align-items: start;
}

.sidebar {
    position: sticky;
    top: 108px;
    padding: 24px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.86);
    box-shadow: var(--shadow-sm);
}

.sidebar-title {
    margin: 0 0 16px;
    color: var(--color-text);
    font-size: 18px;
}

.sidebar-links {
    margin: 0;
    padding: 0;
    list-style: none;
}

.sidebar-links li + li {
    margin-top: 10px;
}

.sidebar-links a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    color: var(--color-text-muted);
    font-weight: 800;
}

.sidebar-links i {
    color: var(--color-primary);
}

.main-content {
    min-width: 0;
}

.section-title {
    margin: 0 0 24px;
    color: var(--color-text);
    font-size: clamp(28px, 4vw, 40px);
    line-height: 1.1;
}

.faq-section,
.contact-section {
    padding: 30px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: #fff;
    box-shadow: var(--shadow-sm);
}

.contact-section {
    margin-top: 28px;
}

.faq-items {
    display: grid;
    gap: 12px;
}

.faq-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: #fff;
    overflow: hidden;
}

.faq-question {
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 20px;
    color: var(--color-text);
    cursor: pointer;
    font-weight: 900;
}

.faq-question i {
    color: var(--color-primary);
    transition: transform var(--transition-fast);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0 20px;
    color: var(--color-text-muted);
    transition: max-height var(--transition-default), padding var(--transition-default);
}

.faq-item.active .faq-answer {
    max-height: 1200px;
    padding: 0 20px 20px;
}

.faq-answer p {
    margin: 0 0 14px;
}

.faq-answer ul,
.faq-answer ol {
    margin: 0 0 14px;
    padding-left: 22px;
}

.faq-answer li {
    margin-top: 8px;
}

.faq-answer a,
.contact-value {
    color: var(--color-primary-dark);
    font-weight: 900;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.contact-card {
    padding: 24px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-background-soft);
}

.contact-icon {
    display: grid;
    width: 52px;
    height: 52px;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
}

.contact-card-title {
    margin: 18px 0 8px;
    color: var(--color-text);
    font-size: 18px;
}

.contact-card-text,
.contact-value {
    margin: 0;
}

.contact-card-text {
    color: var(--color-text-muted);
}

.site-footer {
    padding: 56px 0 28px;
    color: rgba(255, 255, 255, 0.74);
    background: #0d0b16;
}

.site-footer__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(150px, 0.55fr));
    gap: 34px;
}

.brand--footer {
    color: #fff;
}

.site-footer h2 {
    margin: 0 0 12px;
    color: #fff;
    font-size: 16px;
}

.site-footer nav a {
    display: block;
    margin-top: 8px;
}

.copyright {
    margin-top: 38px;
    padding-top: 22px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
}

@media (max-width: 1040px) {
    .site-nav {
        gap: 16px;
        font-size: 14px;
    }

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

@media (max-width: 820px) {
    .container {
        width: min(100% - 28px, var(--container-width));
    }

    .site-header__content {
        gap: 12px;
    }

    .site-nav {
        position: fixed;
        inset: 70px 14px auto;
        display: grid;
        justify-content: stretch;
        gap: 0;
        padding: 14px;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        background: #fff;
        box-shadow: var(--shadow-md);
        opacity: 0;
        pointer-events: none;
        transform: translateY(-10px);
        transition: opacity var(--transition-fast), transform var(--transition-fast);
    }

    .site-nav.is-open {
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
    }

    .site-nav a {
        padding: 13px 10px;
    }

    .site-header__cta {
        margin-left: auto;
        padding-inline: 16px;
    }

    .menu-toggle {
        display: inline-grid;
        place-items: center;
    }

    .page-hero {
        padding: 112px 0 58px;
    }

    .content-container,
    .site-footer__grid {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }
}

@media (max-width: 620px) {
    .brand {
        font-size: 0;
    }

    .site-header__cta {
        min-height: 42px;
        font-size: 14px;
    }

    .page-hero h1 {
        font-size: 42px;
    }

    .page-hero p:not(.eyebrow) {
        font-size: 18px;
    }

    .faq-section,
    .contact-section {
        padding: 18px;
        border-radius: var(--radius-md);
    }

    .section-title {
        font-size: 30px;
    }

    .faq-question {
        padding: 16px;
        font-size: 15px;
    }

    .support-content {
        padding: 54px 0 72px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 1ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 1ms !important;
    }
}