:root {
    --green-primary: #0f9b8e;
    --green-dark: #0c7b6f;
    --bg-light: #f4f7f9;
    --text-main: #102027;
    --text-muted: #5f7a87;
    --card-shadow: 0 18px 45px rgba(16, 32, 39, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Inter", "Segoe UI", Arial, sans-serif;
    background: linear-gradient(180deg, #ffffff 0%, #eef5f7 100%);
    color: var(--text-main);
    min-height: 100vh;
}

.register-page {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 1.25rem;
}

.register-wrapper {
    width: 100%;
    max-width: 720px;
}

.register-headline {
    text-align: center;
    margin-bottom: 2rem;
}

.register-headline h1 {
    margin: 0 0 0.5rem;
    font-size: clamp(1.75rem, 5vw, 2.5rem);
    color: var(--green-primary);
    letter-spacing: -0.02em;
}

.register-headline p {
    margin: 0;
    font-size: 1rem;
    color: var(--text-muted);
}

.register-card {
    background: #fff;
    border-radius: 22px;
    padding: clamp(1.5rem, 4vw, 2.25rem);
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(15, 155, 142, 0.08);
}

.register-errors {
    background: #ffe6e6;
    border-radius: 14px;
    padding: 1rem 1.25rem;
    margin-bottom: 1.25rem;
    border: 1px solid rgba(255, 107, 107, 0.35);
    color: #a11616;
}

.register-errors ul {
    margin: 0;
    padding-left: 1.25rem;
}

.register-form {
    display: grid;
    gap: 1.25rem;
}

.register-fieldset {
    display: grid;
    gap: 1rem;
}

.register-fieldset.three {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.register-fieldset.two {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.register-group label {
    display: block;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.45rem;
    color: var(--text-main);
}

.register-input,
.register-select,
.register-textarea {
    width: 100%;
    border: 1px solid rgba(16, 32, 39, 0.12);
    border-radius: 14px;
    padding: 0.85rem 1rem;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    background-color: #fff;
}

.register-input:focus,
.register-select:focus,
.register-textarea:focus {
    outline: none;
    border-color: rgba(15, 155, 142, 0.6);
    box-shadow: 0 0 0 4px rgba(15, 155, 142, 0.15);
}

.register-input::placeholder,
.register-textarea::placeholder {
    color: rgba(16, 32, 39, 0.45);
}

.register-textarea {
    min-height: 120px;
    resize: vertical;
}

.register-note {
    margin-top: 1.75rem;
    font-size: 0.95rem;
    color: var(--text-muted);
    text-align: center;
}

.register-submit {
    border: none;
    background: var(--green-primary);
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    padding: 0.9rem 1.2rem;
    border-radius: 999px;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    width: min(100%, 260px);
    justify-self: center;
    box-shadow: 0 14px 30px rgba(15, 155, 142, 0.25);
}

.register-submit:hover {
    background: var(--green-dark);
    transform: translateY(-1px);
}

.register-submit:active {
    transform: translateY(0);
}

@media (max-width: 640px) {
    .register-page {
        padding: 2.5rem 1rem;
    }

    .register-card {
        padding: 1.5rem;
    }
}