:root {
    --bg: #f6f8f7;
    --bg-alt: #ffffff;
    --surface: #ffffff;
    --text: #162220;
    --muted: #526463;
    --primary: #006a61;
    --primary-dark: #00544d;
    --accent: #ee7d21;
    --border: #d9e2df;
    --shadow: 0 14px 40px rgba(14, 33, 30, 0.12);
    --radius-xl: 28px;
    --radius-lg: 18px;
    --radius-md: 12px;
    --danger-bg: #fff0ed;
    --danger-text: #8a2e1f;
    --danger-border: #f6c6bd;
    --info-bg: #eef8f6;
    --info-text: #0f4f48;
    --info-border: #c6dfda;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    font-family: "Barlow", "Segoe UI", sans-serif;
    color: var(--text);
    background:
        radial-gradient(1000px 500px at 95% -5%, #d8ece8 0%, transparent 60%),
        radial-gradient(900px 500px at -5% 30%, #ffe9d2 0%, transparent 55%),
        var(--bg);
    line-height: 1.5;
}

a {
    color: inherit;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: #fff;
    color: #000;
    padding: 0.75rem 1rem;
    border-radius: 0 0 10px 10px;
    z-index: 1000;
}

.skip-link:focus {
    left: 1rem;
}

.container {
    width: min(1120px, 92vw);
    margin: 0 auto;
}

.site-header {
    padding: 0.9rem 0;
    border-bottom: 1px solid rgba(8, 37, 33, 0.08);
    backdrop-filter: blur(6px);
    background: rgba(246, 248, 247, 0.76);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.brand-top {
    margin: 0;
    font-family: "Oswald", "Barlow", sans-serif;
    letter-spacing: 0.02em;
    font-size: 1.32rem;
    line-height: 1;
}

.brand-sub {
    margin: 0.3rem 0 0;
    color: var(--muted);
    font-size: 0.95rem;
}

.header-nav {
    display: flex;
    gap: 0.9rem;
    flex-wrap: wrap;
}

.header-nav a {
    color: #24423e;
    text-decoration: none;
    font-weight: 600;
}

.header-nav a:hover,
.header-nav a:focus-visible {
    text-decoration: underline;
}

.main-content {
    padding: 1.7rem 0 2.8rem;
}

.intro-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-xl);
    padding: clamp(1.4rem, 3vw, 2rem);
    color: #fff;
    background:
        radial-gradient(circle at 88% 18%, rgba(238, 125, 33, 0.72) 0%, transparent 42%),
        linear-gradient(150deg, #0f312d 0%, #00544d 50%, #006a61 100%);
    box-shadow: var(--shadow);
    margin-bottom: 1rem;
}

.intro-card::after {
    content: "";
    position: absolute;
    right: -70px;
    bottom: -70px;
    width: 240px;
    height: 240px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
}

.intro-card h1 {
    font-family: "Oswald", "Barlow", sans-serif;
    font-size: clamp(2rem, 4.5vw, 3rem);
    line-height: 1.05;
    letter-spacing: 0.02em;
    margin: 0;
}

.intro-subline {
    margin: 0.7rem 0 0;
    font-size: clamp(1.05rem, 2vw, 1.26rem);
    font-weight: 600;
}

.intro-meta {
    margin: 0.75rem 0 0;
    display: inline-flex;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.95rem;
    background: rgba(255, 255, 255, 0.15);
}

.intro-text {
    margin: 0.95rem 0 0;
    max-width: 68ch;
    color: rgba(255, 255, 255, 0.9);
}

.form-card,
.success-card,
.alert {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 24px rgba(9, 30, 26, 0.08);
}

.alert {
    padding: 0.9rem 1rem;
    margin-bottom: 1rem;
}

.alert-error {
    background: var(--danger-bg);
    border-color: var(--danger-border);
    color: var(--danger-text);
}

.alert-info {
    background: var(--info-bg);
    border-color: var(--info-border);
    color: var(--info-text);
}

.alert ul {
    margin: 0.65rem 0 0;
    padding-left: 1.1rem;
}

.form-card {
    padding: clamp(1.2rem, 2.2vw, 1.6rem);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.field-wide {
    grid-column: 1 / -1;
}

.field-empty {
    pointer-events: none;
}

label {
    font-weight: 700;
}

label span {
    color: #b42318;
}

input[type="text"],
input[type="email"] {
    width: 100%;
    border: 1px solid #bfceca;
    border-radius: 10px;
    padding: 0.76rem 0.8rem;
    font-size: 1rem;
    background: #fff;
    font-family: inherit;
}

input[type="text"]:focus,
input[type="email"]:focus {
    border-color: var(--primary);
    outline: 2px solid rgba(0, 106, 97, 0.18);
    outline-offset: 0;
}

.checks {
    margin: 1.2rem 0 0;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: #f9fbfa;
}

.terms-block {
    margin-top: 1.2rem;
    padding: 1rem;
    border: 1px solid #dce7e4;
    border-radius: var(--radius-md);
    background: #f6faf8;
    color: #37504d;
    font-size: 0.94rem;
    line-height: 1.52;
    scroll-margin-top: 1.25rem;
}

.terms-block h2 {
    margin: 0;
    font-family: "Oswald", "Barlow", sans-serif;
    font-size: 1.12rem;
    letter-spacing: 0.01em;
    line-height: 1.2;
    color: #17302d;
}

.terms-headline {
    margin: 0.45rem 0 0;
    font-weight: 600;
    color: #26413d;
}

.terms-block h3 {
    margin: 0.78rem 0 0.25rem;
    font-size: 0.98rem;
    line-height: 1.3;
    color: #1d3a36;
}

.terms-block p {
    margin: 0.36rem 0 0;
}

.checks legend {
    padding: 0 0.35rem;
    font-weight: 800;
}

.check-item {
    display: grid;
    grid-template-columns: 20px 1fr;
    align-items: start;
    gap: 0.7rem;
    margin: 0.75rem 0;
    font-weight: 500;
}

.check-item input {
    margin-top: 0.18rem;
}

.check-item a {
    color: var(--primary-dark);
}

.footnote {
    margin: 1rem 0 0;
    color: var(--muted);
    font-size: 0.95rem;
}

.submit-btn,
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 700;
    font-size: 1rem;
    line-height: 1.2;
    padding: 0.86rem 1.22rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    cursor: pointer;
}

.submit-btn:not(:disabled):hover,
.btn:hover,
.submit-btn:not(:disabled):focus-visible,
.btn:focus-visible {
    transform: translateY(-1px);
}

.submit-btn:focus-visible,
.btn:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 2px;
}

.submit-btn {
    margin-top: 1.1rem;
    width: 100%;
    background: var(--accent);
    color: #1f1103;
    box-shadow: 0 8px 18px rgba(238, 125, 33, 0.38);
    padding-top: 0.95rem;
    padding-bottom: 0.95rem;
}

.submit-btn:not(:disabled):hover,
.submit-btn:not(:disabled):focus-visible {
    background: #ff8b2b;
}

.submit-btn:disabled {
    background: #c3cdca;
    color: #556462;
    box-shadow: none;
    cursor: not-allowed;
}

.success-wrap {
    padding-top: 0.4rem;
}

.success-card {
    padding: clamp(1.2rem, 2.2vw, 1.6rem);
}

.success-card h1 {
    margin-top: 0;
    font-family: "Oswald", "Barlow", sans-serif;
    font-size: clamp(1.85rem, 3.2vw, 2.4rem);
}

.success-email {
    background: #f3f9f7;
    border: 1px solid #cce0db;
    border-radius: 10px;
    padding: 0.6rem 0.75rem;
}

.success-actions {
    margin-top: 1rem;
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover,
.btn-primary:focus-visible {
    background: var(--primary-dark);
}

.btn-secondary {
    background: #e9f1ef;
    color: #17302d;
    border-color: #d1e0dc;
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
    background: #dbe9e5;
}

.hp-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.site-footer {
    border-top: 1px solid var(--border);
    background: #fff;
}

.footer-inner {
    padding: 1rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.footer-inner p {
    margin: 0;
    color: var(--muted);
}

.footer-nav {
    display: flex;
    gap: 0.9rem;
    flex-wrap: wrap;
}

.footer-nav a {
    text-decoration: none;
    color: #224743;
    font-weight: 600;
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
    text-decoration: underline;
}

@media (max-width: 780px) {
    .main-content {
        padding-top: 1rem;
    }

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

    .field-empty {
        display: none;
    }

    .terms-block {
        padding: 0.9rem;
        font-size: 0.92rem;
    }

    .header-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .success-actions .btn {
        width: 100%;
    }
}