:root {
    --background-brown: #2b1f18;
    --background-tan: #6e4a36;
    --background-gold: #c79a2a;
    --background-blue: #4aa6bf;
    --background-sand: #d4b192;
    --panel: rgba(15, 15, 40, 0.72);
    --panel-border: rgba(184, 168, 255, 0.3);
    --text: #eae7e2;
    --text-muted: #cfcfff;
    --link: #a9c8ff;
    --link-hover: #d5e3ff;
    --focus: #ffd86b;
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
}

body {
    min-height: 100vh;
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text);
    line-height: 1.6;
    background:
        radial-gradient(circle at 15% 25%, rgba(199, 154, 42, 0.2) 0%, transparent 30%),
        radial-gradient(circle at 80% 70%, rgba(74, 166, 191, 0.14) 0%, transparent 35%),
        radial-gradient(circle at 40% 80%, rgba(212, 177, 146, 0.1) 0%, transparent 28%),
        linear-gradient(135deg, var(--background-brown) 0%, var(--background-tan) 30%, var(--background-gold) 55%, var(--background-blue) 85%, var(--background-sand) 100%);
    background-attachment: fixed;
}

a {
    color: var(--link);
    text-decoration: underline;
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.18em;
}

a:hover {
    color: var(--link-hover);
}

a:focus-visible {
    color: #111122;
    background: var(--focus);
    outline: 3px solid var(--focus);
    outline-offset: 3px;
    border-radius: 2px;
}

.site-header {
    background-color: rgba(10, 10, 30, 0.92);
    border-bottom: 1px solid var(--panel-border);
    backdrop-filter: blur(10px);
}

.navbar {
    max-width: 1180px;
    min-height: 88px;
    margin: 0 auto;
    padding: 12px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: #ffffff;
    font-size: 1.6rem;
    font-weight: 700;
    text-decoration: none;
}

.brand:hover {
    color: #ffffff;
}

.brand-logo {
    width: 65px;
    height: 65px;
}

.nav-links {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px 24px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-links a {
    color: #d7d7ff;
    font-weight: 600;
    text-decoration: underline;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
    color: #ffffff;
}

.container {
    width: min(100% - 40px, 1100px);
    margin: 0 auto;
    padding: 40px 0;
}

.hero,
.content {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
}

.hero {
    margin-bottom: 40px;
    padding: 96px 24px;
    text-align: center;
}

.hero h1 {
    margin: 0 0 14px;
    color: #ffffff;
    font-size: clamp(2.2rem, 6vw, 3.2rem);
    line-height: 1.15;
}

.hero p {
    margin: 0;
    color: var(--text-muted);
    font-size: clamp(1.05rem, 3vw, 1.3rem);
}

.content {
    padding: 40px;
    color: #e8e8ff;
}

.content p {
    margin: 0 0 16px;
}

.section-title {
    margin: 0 0 8px;
    color: #ffffff;
    font-size: 1.8rem;
    line-height: 1.25;
}

.section-title-spaced {
    margin-top: 44px;
}

.link-list {
    margin: 10px 0 0;
    padding-left: 24px;
    line-height: 2.2;
}

.site-footer {
    background-color: rgba(10, 10, 30, 0.92);
    border-top: 1px solid var(--panel-border);
}

.footer-inner {
    width: min(100% - 40px, 1100px);
    margin: 0 auto;
    padding: 28px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px 28px;
}

.footer-inner p {
    margin: 0;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 24px;
}

.error-hero {
    min-height: 480px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.error-code {
    margin: 0 0 4px;
    color: var(--focus);
    font-size: clamp(4rem, 15vw, 8rem);
    font-weight: 800;
    line-height: 1;
    letter-spacing: 0.04em;
}

.button-link {
    display: inline-block;
    margin-top: 28px;
    padding: 10px 20px;
    color: #111122;
    background: var(--focus);
    border-radius: 6px;
    font-weight: 700;
    text-decoration: none;
}

.button-link:hover {
    color: #111122;
    background: #ffe699;
}

@media (max-width: 700px) {
    body {
        background-attachment: scroll;
    }

    .navbar {
        padding: 12px 20px;
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .nav-links {
        width: 100%;
        justify-content: space-between;
        gap: 8px 14px;
    }

    .container {
        width: min(100% - 24px, 1100px);
        padding: 24px 0;
    }

    .hero {
        margin-bottom: 24px;
        padding: 56px 18px;
    }

    .content {
        padding: 24px 20px;
    }

    .section-title-spaced {
        margin-top: 34px;
    }

    .footer-inner {
        width: min(100% - 32px, 1100px);
        padding: 24px 0;
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 420px) {
    .brand-logo {
        width: 54px;
        height: 54px;
    }

    .brand {
        font-size: 1.4rem;
    }

    .nav-links {
        justify-content: flex-start;
    }

    .hero {
        padding: 42px 16px;
    }
}