:root {
    color-scheme: light;
    --blue: #00a5df;
    --blue-dark: #007da9;
    --grey: #62676c;
    --ink: #333b42;
    --muted: #69747b;
    --background: #f2f4f5;
    --line: #dbe1e5;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--background);
    color: var(--ink);
    font-family: "Segoe UI", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--blue-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

a:focus-visible, button:focus-visible, input:focus-visible {
    outline: 3px solid var(--blue-dark);
    outline-offset: 4px;
}

.page {
    max-width: 1380px;
    min-height: 100vh;
    margin: auto;
    padding: 0 clamp(22px, 5vw, 76px);
}

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 32px 0;
    border-bottom: 1px solid var(--line);
}

.brand { display: inline-flex; }
.brand img { width: 204px; height: auto; }
.header-link { font-size: 13px; color: var(--grey); }
.header-link span { margin-left: 10px; color: var(--blue-dark); }

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(320px, 1fr);
    align-items: center;
    gap: clamp(36px, 6vw, 96px);
    padding: 52px 0 60px;
}

.eyebrow {
    margin: 0 0 23px;
    color: var(--grey);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.8px;
    text-transform: uppercase;
}

.status-dot {
    display: inline-block;
    width: 7px;
    height: 7px;
    margin-right: 9px;
    border-radius: 50%;
    background: var(--blue);
}

h1 {
    margin: 0;
    font-size: clamp(40px, 4.5vw, 68px);
    line-height: 1.1;
    font-weight: 650;
    letter-spacing: -2.5px;
}

h1 span { color: var(--blue); }

.hero-description {
    max-width: 440px;
    margin: 25px 0 30px;
    color: var(--muted);
    font-size: 18px;
    line-height: 1.7;
}

.explore-link { font-size: 13px; font-weight: 600; }
.explore-link span { margin-left: 15px; }

.account-panel {
    padding: 30px;
    background: #fff;
    border: 1px solid #e3e8eb;
    border-radius: 16px;
    box-shadow: 0 16px 48px rgb(51 59 66 / 5%);
}

.account-panel .eyebrow { margin-bottom: 12px; font-size: 10px; }
.account-panel h2 { margin: 0; font-size: 23px; font-weight: 650; letter-spacing: -.5px; }
.account-description { margin: 10px 0 24px; color: var(--muted); font-size: 13px; line-height: 1.6; }
.login-error { margin: 0 0 18px; color: #a32929; font-size: 13px; line-height: 1.6; }
.hero-registration { align-items: start; }
.hero-registration .hero-copy { padding-top: 60px; }
.registration-form .form-field { margin-bottom: 12px; }
.registration-message { font-size: 13px; line-height: 1.6; padding: 10px 12px; border-left: 3px solid var(--blue-dark); background: #f1faff; }
.registration-note { margin: 6px 0 12px; font-size: 11px; color: var(--muted); line-height: 1.6; }
.registration-trap { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.registration-tests { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.resend-code { margin-top: 12px; }
.form-field { margin-bottom: 17px; }
label { display: block; color: var(--grey); font-size: 12px; font-weight: 600; }
.label-row { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.label-row a { font-size: 11px; }

input {
    width: 100%;
    min-height: 46px;
    margin-top: 8px;
    padding: 11px 13px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: #fafbfc;
    color: var(--ink);
    font: inherit;
    font-size: 14px;
}

input::placeholder { color: #737d84; }
input:focus { border-color: var(--blue-dark); }

.button {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    min-height: 46px;
    padding: 12px 18px;
    border-radius: 7px;
    font: inherit;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color .15s ease;
}

.button:hover { text-decoration: none; }
.button-primary { position: relative; border: 1px solid var(--blue-dark); background: var(--blue-dark); color: white; }
.button-primary span { position: absolute; right: 18px; font-size: 18px; }
.button-primary:hover { background: #006b91; }
.button-secondary { border: 1px solid #c7e9f5; background: #f1faff; color: var(--blue-dark); }
.button-secondary:hover { background: #e2f4fc; }
.register-block { margin-top: 22px; padding-top: 20px; border-top: 1px solid #edf0f2; }
.register-block p { margin: 0 0 12px; text-align: center; color: var(--muted); font-size: 12px; }
.account-links { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; font-size: 11px; }
.account-links span { color: #a3acb2; }

.possibilities { border-top: 1px solid var(--line); padding: 27px 0 34px; scroll-margin-top: 24px; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.section-heading h2 { margin: 0; color: var(--grey); font-size: 18px; font-weight: 600; }
.section-heading > p { margin: 0; color: var(--muted); font-size: 12px; }
.feature-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.feature img { display: block; width: 100%; height: auto; border-radius: 9px; }
.feature-heading { display: flex; align-items: baseline; gap: 9px; margin-top: 16px; }
.feature-heading span { color: var(--blue-dark); font-size: 10px; font-weight: 700; }
.feature h3 { margin: 0; font-size: 14px; font-weight: 650; }
.feature p { margin: 10px 0 0; color: var(--muted); font-size: 12px; line-height: 1.8; }
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 16px; border-top: 1px solid var(--line); padding: 19px 0 24px; color: var(--muted); font-size: 11px; }
.site-footer p { margin: 0; }
.site-footer p span { margin: 0 6px; }

@media (min-width: 1600px) {
    .hero { padding-top: 80px; padding-bottom: 80px; }
}

@media (max-width: 1050px) {
    .hero { gap: 32px; grid-template-columns: minmax(0, 1fr) minmax(300px, 1fr); }
    h1 { font-size: clamp(38px, 4.5vw, 48px); letter-spacing: -1.8px; }
    .feature-grid { gap: 18px; }
}

@media (max-width: 760px) {
    .hero-registration .hero-copy { padding-top: 0; }
    .site-header { padding: 24px 0; }
    .brand img { width: 160px; }
    .hero { grid-template-columns: 1fr; gap: 36px; padding: 36px 0; }
    h1 { font-size: clamp(40px, 7.5vw, 60px); }
    .hero-description { margin: 20px 0; font-size: 16px; }
    .account-panel { width: 100%; max-width: 480px; }
    .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 20px; }
    .section-heading { align-items: flex-start; flex-direction: column; gap: 8px; }
}

@media (max-width: 420px) {
    .header-link { font-size: 11px; }
    .header-link span { margin-left: 3px; }
    .brand img { width: 136px; }
    .account-panel { padding: 23px; }
    .account-panel h2 { font-size: 21px; }
    .feature-grid { grid-template-columns: 1fr; }
    .site-footer { align-items: flex-start; flex-direction: column; gap: 12px; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .button { transition: none; }
}