@font-face {
    font-family: 'Montserrat';
    font-style: normal;
    font-weight: 300 800;
    font-display: swap;
    src: url('../fonts/montserrat-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: 'Montserrat';
    font-style: normal;
    font-weight: 300 800;
    font-display: swap;
    src: url('../fonts/montserrat-latin-ext.woff2') format('woff2');
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
    color-scheme: dark;
    --bg: #1b1b1b;
    --text: #ffffff;
    --accent: #8354f7;
    --accent-hover: #6f3ee0;
    --accent-text: #9b72f9;
    --card-bg: #242424;
    --border-color: #333333;
    --text-muted: #a5a5ab;
    --text-body: #d7d7dc;
    --font-main: 'Codec Pro', 'Montserrat', sans-serif;
}

:root[data-theme="light"] {
    color-scheme: light;
    --bg: #f5f5f7;
    --text: #17171a;
    --accent: #8354f7;
    --accent-hover: #6f3ee0;
    --accent-text: #6f3ee0;
    --card-bg: #ffffff;
    --border-color: #e3e3e8;
    --text-muted: #5f5f68;
    --text-body: #2c2c33;
}

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

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-main);
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 50px 20px 60px;
}

main {
    width: 100%;
    max-width: 760px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 36px 32px;
}

.back {
    display: inline-block;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 22px;
}

.back:hover {
    color: var(--accent-text);
}

h1 {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 24px;
}

h2 {
    font-size: 1.05rem;
    font-weight: 800;
    margin: 28px 0 8px;
}

p,
address,
ul {
    font-size: 0.92rem;
    color: var(--text-body);
    margin-bottom: 12px;
}

address {
    font-style: normal;
}

ul {
    padding-left: 22px;
}

li {
    margin-bottom: 4px;
}

a {
    color: var(--accent-text);
}

a:hover {
    color: #b09afc;
}

a:focus-visible,
button:focus-visible {
    outline: 3px solid var(--accent-text);
    outline-offset: 3px;
}

.theme-toggle {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 1100;
    width: 44px;
    height: 44px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    color: var(--text);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

.theme-toggle:hover {
    border-color: var(--accent);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    display: block;
}

.theme-toggle .icon-moon {
    display: none;
}

:root[data-theme="light"] .theme-toggle .icon-sun {
    display: none;
}

:root[data-theme="light"] .theme-toggle .icon-moon {
    display: block;
}

.stand {
    margin-top: 28px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

footer {
    margin-top: 30px;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

footer a {
    color: var(--text);
    text-decoration: none;
    font-weight: 700;
    margin: 0 6px;
}

footer a:hover {
    color: var(--accent-text);
}

@media (max-width: 520px) {
    main {
        padding: 26px 20px;
    }
}