/* =========================
   BASE
   ========================= */

:root {
    --background: #f7f8f5;
    --surface: #ffffff;
    --text: #14211a;
    --text-muted: #5e6b63;
    --primary: #1f6b4f;
    --primary-dark: #15523c;
    --primary-light: #e5f1eb;
    --border: #dfe5e0;
    --dark: #102018;

    --container: 1160px;
    --radius: 18px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family:
        Inter,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;

    background: var(--background);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
}

button,
input,
select {
    font: inherit;
}

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


/* =========================
   HEADER
   ========================= */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;

    background: rgba(247, 248, 245, 0.92);
    backdrop-filter: blur(14px);

    border-bottom: 1px solid rgba(20, 33, 26, 0.08);
}

.header-inner {
    min-height: 74px;

    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    text-decoration: none;
    font-size: 1.55rem;
    font-weight: 800;
    letter-spacing: -0.04em;
}

.header-cta {
    text-decoration: none;

    padding: 10px 18px;

    border: 1px solid var(--border);
    border-radius: 999px;

    background: var(--surface);

    font-size: 0.9rem;
    font-weight: 700;

    transition:
        border-color 0.2s ease,
        transform 0.2s ease;
}

.header-cta:hover {
    border-color: var(--primary);
    transform: translateY(-1px);
}


/* =========================
   GENERAL COMPONENTS
   ========================= */

.eyebrow {
    margin-bottom: 18px;

    color: var(--primary);

    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.13em;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-height: 52px;
    padding: 0 24px;

    border: 0;
    border-radius: 12px;

    text-decoration: none;
    font-weight: 750;

    cursor: pointer;

    transition:
        transform 0.2s ease,
        background 0.2s ease,
        box-shadow 0.2s ease;
}

.button-primary {
    background: var(--primary);
    color: white;

    box-shadow: 0 8px 24px rgba(31, 107, 79, 0.18);
}

.button-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);

    box-shadow: 0 12px 30px rgba(31, 107, 79, 0.24);
}


/* =========================
   HERO
   ========================= */

.hero {
    position: relative;
    overflow: hidden;

    min-height: 690px;

    display: flex;
    align-items: center;

    padding: 110px 0 120px;
}

.hero::before {
    content: "";

    position: absolute;

    width: 550px;
    height: 550px;

    right: -160px;
    top: -170px;

    border-radius: 50%;

    background:
        radial-gradient(
            circle,
            rgba(31, 107, 79, 0.12),
            rgba(31, 107, 79, 0)
        );

    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;

    max-width: 900px;
}

.hero h1 {
    max-width: 850px;

    font-size: clamp(3.2rem, 8vw, 6.7rem);
    line-height: 0.95;
    letter-spacing: -0.065em;
    font-weight: 800;
}

.hero h1 span {
    color: var(--primary);
}

.hero-description {
    max-width: 670px;

    margin-top: 34px;

    color: var(--text-muted);

    font-size: clamp(1.05rem, 2vw, 1.28rem);
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 22px;

    margin-top: 38px;
}

.hero-note {
    color: var(--text-muted);
    font-size: 0.9rem;
}


/* =========================
   PROBLEM / FEATURES
   ========================= */

.problem {
    padding: 110px 0;

    background: var(--dark);
    color: white;
}

.section-heading {
    max-width: 760px;
}

.section-heading h2 {
    font-size: clamp(2.2rem, 5vw, 4rem);
    line-height: 1.08;
    letter-spacing: -0.045em;
}

.section-heading > p:last-child {
    max-width: 620px;

    margin-top: 24px;

    color: #b9c6be;

    font-size: 1.08rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;

    margin-top: 70px;
}

.feature-card {
    min-height: 280px;

    padding: 32px;

    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);

    background: rgba(255, 255, 255, 0.035);
}

.feature-number {
    display: block;

    margin-bottom: 70px;

    color: #74b899;

    font-size: 0.8rem;
    font-weight: 800;
}

.feature-card h3 {
    margin-bottom: 12px;

    font-size: 1.35rem;
    letter-spacing: -0.02em;
}

.feature-card p {
    color: #b9c6be;
}


/* =========================
   EARLY ACCESS
   ========================= */

.early-access {
    padding: 120px 0;
}

.early-access-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 90px;
    align-items: start;
}

.early-access-copy {
    padding-top: 30px;
}

.early-access-copy h2 {
    max-width: 520px;

    font-size: clamp(2.3rem, 5vw, 4rem);
    line-height: 1.08;
    letter-spacing: -0.045em;
}

.early-access-copy > p:not(.eyebrow) {
    max-width: 520px;

    margin-top: 22px;

    color: var(--text-muted);
    font-size: 1.05rem;
}

.tester-count {
    display: flex;
    align-items: center;
    gap: 18px;

    margin-top: 42px;
    padding-top: 30px;

    border-top: 1px solid var(--border);
}

.tester-count strong {
    color: var(--primary);

    font-size: 3rem;
    line-height: 1;
    letter-spacing: -0.05em;
}

.tester-count span {
    max-width: 110px;

    color: var(--text-muted);

    font-size: 0.9rem;
    line-height: 1.3;
}


/* =========================
   FORM
   ========================= */

.signup-card {
    padding: 42px;

    border: 1px solid var(--border);
    border-radius: 24px;

    background: var(--surface);

    box-shadow: 0 24px 70px rgba(20, 33, 26, 0.08);
}

.signup-card h3 {
    font-size: 1.6rem;
    letter-spacing: -0.03em;
}

.signup-card > p {
    margin-top: 8px;
    margin-bottom: 30px;

    color: var(--text-muted);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;

    margin-bottom: 7px;

    font-size: 0.9rem;
    font-weight: 700;
}

.form-group input,
.form-group select {
    width: 100%;
    min-height: 52px;

    padding: 0 14px;

    border: 1px solid #ccd5ce;
    border-radius: 10px;

    outline: none;

    background: white;
    color: var(--text);

    transition:
        border-color 0.2s ease,
        box-shadow 0.2s ease;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--primary);

    box-shadow: 0 0 0 3px rgba(31, 107, 79, 0.12);
}

.form-button {
    width: 100%;

    margin-top: 8px;
}

.form-privacy {
    margin-top: 16px;

    color: var(--text-muted);

    text-align: center;
    font-size: 0.78rem;
}


/* =========================
   FOOTER
   ========================= */

.site-footer {
    padding: 55px 0;

    border-top: 1px solid var(--border);

    background: white;
}

.footer-inner {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 30px;
}

.footer-logo {
    display: block;

    margin-bottom: 5px;

    font-size: 1.3rem;
    letter-spacing: -0.04em;
}

.footer-inner p {
    color: var(--text-muted);
    font-size: 0.88rem;
}

.copyright {
    text-align: right;
}


/* =========================
   RESPONSIVE
   ========================= */

@media (max-width: 850px) {

    .hero {
        min-height: auto;
        padding: 90px 0;
    }

    .hero-actions {
        align-items: flex-start;
        flex-direction: column;
    }

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

    .feature-card {
        min-height: auto;
    }

    .feature-number {
        margin-bottom: 40px;
    }

    .early-access-grid {
        grid-template-columns: 1fr;
        gap: 55px;
    }

    .early-access-copy {
        padding-top: 0;
    }
}


@media (max-width: 560px) {

    .container {
        width: min(calc(100% - 28px), var(--container));
    }

    .header-inner {
        min-height: 66px;
    }

    .logo {
        font-size: 1.35rem;
    }

    .header-cta {
        padding: 8px 13px;
        font-size: 0.82rem;
    }

    .hero {
        padding: 75px 0 85px;
    }

    .hero h1 {
        font-size: clamp(3rem, 16vw, 4.6rem);
    }

    .problem {
        padding: 80px 0;
    }

    .feature-grid {
        margin-top: 45px;
    }

    .feature-card {
        padding: 26px;
    }

    .early-access {
        padding: 80px 0;
    }

    .signup-card {
        padding: 26px 20px;
        border-radius: 18px;
    }

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

    .copyright {
        text-align: left;
    }
}

.form-status {
    min-height: 24px;
    margin-top: 16px;
    font-size: 0.95rem;
    font-weight: 600;
    text-align: center;
}

.form-status.success {
    color: #167c5a;
}

.form-status.error {
    color: #b42318;
}