:root {
    --bg-start: #e8f4e8;
    --bg-end: #f5f8f2;
    --text: #1f2a1f;
    --muted: #556353;
    --card: #ffffff;
    --card-border: #d7e3d1;
    --accent: #5f7f52;
    --accent-dark: #4e6a44;
    --shadow: 0 18px 40px rgba(55, 83, 48, 0.13);
}

* {
    box-sizing: border-box;
}

body {
    font-family: "Inter", "Segoe UI", Roboto, Arial, sans-serif;
    background: linear-gradient(140deg, var(--bg-start), var(--bg-end));
    color: var(--text);
    margin: 0;
    min-height: 100vh;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 56px 20px 42px;
    text-align: center;
}

h1 {
    margin: 0 0 10px;
    font-size: clamp(1.9rem, 3vw, 2.5rem);
}

.intro {
    color: var(--muted);
    margin-bottom: 34px;
    line-height: 1.5;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.card {
    background: var(--card);
    padding: 22px;
    border-radius: 16px;
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow);
    text-align: left;
}

.card h2 {
    margin: 0 0 10px;
}

.card p {
    margin: 0 0 12px;
}

label {
    font-size: 0.92rem;
    font-weight: 600;
    color: #465245;
}

input {
    width: 100%;
    padding: 10px 12px;
    margin: 8px 0 12px;
    border-radius: 10px;
    border: 1px solid #b6c5b0;
    background: #fcfdfb;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input:focus {
    outline: none;
    border-color: #7ca06f;
    box-shadow: 0 0 0 4px rgba(95, 127, 82, 0.18);
}

button,
.btn {
    display: inline-block;
    padding: 10px 14px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.15s ease, background-color 0.15s ease;
}

button:hover,
.btn:hover {
    background: var(--accent-dark);
    transform: translateY(-1px);
}

.small {
    font-size: 0.82rem;
    color: #63715f;
    margin-top: 12px;
}

@media (max-width: 760px) {
    .container {
        padding-top: 34px;
    }

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