:root {
    --bg: #f6f8fb;
    --surface: #ffffff;
    --surface-soft: #edf4f1;
    --ink: #17211f;
    --muted: #5c6966;
    --line: #dce5e2;
    --primary: #126b5a;
    --primary-dark: #0b4d40;
    --accent: #b64f4a;
    --gold: #a47b18;
    --radius: 8px;
    --shadow: 0 18px 50px rgba(31, 45, 43, 0.12);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    line-height: 1.5;
}

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

a {
    color: inherit;
}

h1,
h2,
h3,
p {
    overflow-wrap: anywhere;
}

h1 {
    max-width: 760px;
    margin: 0;
    color: var(--ink);
    font-size: clamp(2.6rem, 5vw, 5.1rem);
    line-height: 0.96;
}

h2 {
    max-width: 760px;
    margin: 0;
    font-size: clamp(2rem, 3vw, 3.2rem);
    line-height: 1.04;
}

h3 {
    margin: 14px 0 8px;
    font-size: 1.15rem;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 72px;
    padding: 0 32px;
    background: rgba(255, 255, 255, 0.94);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(12px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--ink);
    font-weight: 800;
    text-decoration: none;
}

.brand__mark {
    display: inline-grid;
    width: 34px;
    height: 34px;
    place-items: center;
    color: #ffffff;
    background: var(--primary);
    border-radius: var(--radius);
}

.brand__text {
    font-size: 1.1rem;
}

.site-header__nav {
    display: flex;
    align-items: center;
    gap: 14px;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.site-nav__link {
    padding: 9px 12px;
    color: var(--muted);
    border-radius: var(--radius);
    font-size: 0.93rem;
    font-weight: 700;
    text-decoration: none;
}

.site-nav__link:hover,
.site-nav__link.is-active {
    color: var(--primary-dark);
    background: var(--surface-soft);
}

.nav-toggle {
    display: none;
    padding: 9px 12px;
    color: var(--primary-dark);
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    font: inherit;
    font-weight: 700;
}

.language-switcher {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding-left: 12px;
    border-left: 1px solid var(--line);
}

.language-switcher__link {
    padding: 7px 8px;
    color: var(--muted);
    border-radius: var(--radius);
    font-size: 0.78rem;
    font-weight: 800;
    text-decoration: none;
}

.language-switcher__link:hover,
.language-switcher__link.is-active {
    color: #ffffff;
    background: var(--primary);
}

.eyebrow {
    margin: 0 0 12px;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 12px 18px;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-weight: 800;
    text-decoration: none;
}

.button--primary {
    color: #ffffff;
    background: var(--primary);
}

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

.button--secondary {
    color: var(--primary-dark);
    background: #ffffff;
    border-color: var(--line);
}

.auth-form {
    display: grid;
    gap: 16px;
    padding: 26px;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.auth-form label {
    display: grid;
    gap: 7px;
    color: var(--ink);
    font-weight: 800;
}

.auth-form input {
    width: 100%;
    min-height: 44px;
    padding: 10px 12px;
    color: var(--ink);
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    font: inherit;
}

.auth-form input:focus {
    border-color: var(--primary);
    outline: 3px solid rgba(18, 107, 90, 0.12);
}

.auth-form input[readonly] {
    color: var(--muted);
    background: #f6f8fb;
}

.auth-form__hint {
    margin: 0;
    color: var(--muted);
    font-size: 0.95rem;
}

.auth-form__hint a {
    color: var(--primary-dark);
    font-weight: 800;
}

.field-error {
    color: #b42318;
    font-size: 0.84rem;
    font-weight: 700;
}

.field-help {
    color: var(--muted);
    font-size: 0.84rem;
    font-weight: 700;
}

.form-alert {
    padding: 12px 14px;
    border-radius: var(--radius);
    font-weight: 800;
}

.form-alert--success {
    color: #0b4d40;
    background: #e9f5f1;
    border: 1px solid #9bc8b7;
}

.form-alert--error {
    color: #7a271a;
    background: #fff1ee;
    border: 1px solid #ffb4a8;
}

.feature-card {
    min-height: 245px;
    padding: 22px;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

.feature-card__number {
    color: var(--gold);
    font-size: 0.8rem;
    font-weight: 800;
}

.feature-card p {
    margin: 0;
    color: var(--muted);
}

.feature-card__link {
    display: inline-flex;
    margin-top: 16px;
    color: var(--primary-dark);
    font-weight: 800;
    text-decoration: none;
}

.site-footer {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    justify-content: space-between;
    padding: 28px 32px;
    color: var(--muted);
    background: #ffffff;
    border-top: 1px solid var(--line);
}

.site-footer div {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

@media (max-width: 980px) {
    .site-header {
        padding: 0 18px;
    }

    .nav-toggle {
        display: inline-flex;
    }

    .site-header__nav {
        position: absolute;
        top: 72px;
        right: 18px;
        left: 18px;
        display: none;
        padding: 10px;
        background: #ffffff;
        border: 1px solid var(--line);
        border-radius: var(--radius);
        box-shadow: var(--shadow);
    }

    .site-header__nav.is-open {
        display: grid;
        gap: 10px;
    }

    .site-nav {
        display: grid;
    }

    .language-switcher {
        justify-content: flex-start;
        padding-top: 10px;
        padding-left: 0;
        border-top: 1px solid var(--line);
        border-left: 0;
    }
}

@media (max-width: 680px) {
    h1 {
        font-size: 2.55rem;
    }

    .button {
        width: 100%;
    }
}