:root {
    --background: #f7f8fa;
    --surface: #ffffff;
    --text: #111827;
    --muted: #667085;
    --border: #e5e7eb;
    --primary: #111827;
    --primary-hover: #28303d;
    --radius: 14px;
    --max-width: 1120px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--background);
    color: var(--text);
    font-family:
        Inter,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    line-height: 1.5;
}

a {
    color: inherit;
}

.container {
    width: min(calc(100% - 40px), var(--max-width));
    margin: 0 auto;
}


/* Navigation */

.site-header {
    background: rgba(255, 255, 255, 0.94);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    text-decoration: none;
    font-size: 21px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-link {
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
}

.nav-email {
    color: var(--muted);
    font-size: 13px;
}


/* Buttons */

.button,
.button-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 22px;
    border-radius: 10px;
    text-decoration: none;
    font-size: 15px;
    font-weight: 700;
    transition: 0.15s ease;
    cursor: pointer;
}

.button {
    background: var(--primary);
    color: #ffffff;
    border: 1px solid var(--primary);
}

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

.button-secondary {
    background: #ffffff;
    border: 1px solid var(--border);
}

.button-secondary:hover {
    background: #f9fafb;
}

.button-small {
    min-height: 38px;
    padding: 0 16px;
    font-size: 14px;
}


/* Hero */

.hero {
    padding: 110px 0 100px;
    text-align: center;
}

.hero-content {
    max-width: 820px;
}

.eyebrow,
.section-label {
    margin-bottom: 18px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 1.6px;
}

.hero h1 {
    margin: 0;
    font-size: clamp(48px, 8vw, 82px);
    line-height: 0.98;
    letter-spacing: -4px;
}

.hero-text {
    max-width: 650px;
    margin: 30px auto 0;
    color: var(--muted);
    font-size: 19px;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 34px;
}

.hero-content > .button {
    margin-top: 34px;
}

.hero-note {
    margin-top: 24px;
    color: var(--muted);
    font-size: 13px;
}


/* Features */

.feature-section {
    padding: 80px 0 110px;
    background: #ffffff;
}

.feature-section h2 {
    max-width: 620px;
    margin: 0 0 42px;
    font-size: clamp(34px, 5vw, 52px);
    line-height: 1.05;
    letter-spacing: -2px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature-card {
    padding: 30px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.feature-icon {
    margin-bottom: 35px;
    font-size: 26px;
}

.feature-card h3 {
    margin: 0 0 10px;
    font-size: 18px;
}

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


/* Auth */

.auth-page {
    padding: 75px 0 110px;
}

.auth-card {
    width: min(calc(100% - 40px), 460px);
    margin: 0 auto;
    padding: 36px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.auth-card h1 {
    margin: 0 0 8px;
    font-size: 32px;
    letter-spacing: -1px;
}

.auth-intro {
    margin: 0 0 28px;
    color: var(--muted);
}

.auth-form p {
    margin: 0 0 18px;
}

.auth-form label {
    display: block;
    margin-bottom: 7px;
    font-size: 14px;
    font-weight: 650;
}

.auth-form input {
    width: 100%;
    min-height: 46px;
    padding: 10px 12px;
    border: 1px solid #d0d5dd;
    border-radius: 8px;
    background: #ffffff;
    font: inherit;
}

.auth-form input:focus {
    outline: 2px solid #cfd5df;
    border-color: var(--primary);
}

.auth-form .button {
    width: 100%;
    margin-top: 8px;
}

.auth-links {
    margin-top: 24px;
    text-align: center;
    color: var(--muted);
    font-size: 14px;
}

.auth-links a {
    color: var(--text);
    font-weight: 650;
}

.errorlist {
    margin: 7px 0;
    padding: 0;
    list-style: none;
    color: #b42318;
    font-size: 13px;
}

.helptext {
    display: block;
    margin-top: 6px;
    color: var(--muted);
    font-size: 12px;
}

.messages {
    margin-top: 18px;
}

.message {
    padding: 12px 14px;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
}


/* Mobile */

@media (max-width: 760px) {

    .nav-email {
        display: none;
    }

    .hero {
        padding: 80px 0 75px;
    }

    .hero h1 {
        letter-spacing: -2.5px;
    }

    .hero-text {
        font-size: 17px;
    }

    .hero-actions {
        flex-direction: column;
    }

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

    .auth-card {
        padding: 28px 22px;
    }
}