:root {
    --shadow-grey: #272A2F;
    --shadow-grey-2: #26292E;
    --pine-teal: #28473D;
    --jungle-green: #2EA46D;
    --white: #FEFEFF;
    --text-muted: #a0a6b1;

    --warning-bg: rgba(245, 158, 11, 0.15);
    --warning-border: rgba(245, 158, 11, 0.3);
    --warning-text: #f59e0b;
    --error-bg: rgba(239, 68, 68, 0.15);
    --error-border: rgba(239, 68, 68, 0.3);
    --error-text: #ef4444;
    --success-bg: rgba(46, 164, 109, 0.15);
    --success-border: rgba(46, 164, 109, 0.3);
    --success-text: var(--jungle-green);
}

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

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background-color: var(--shadow-grey);
    color: var(--white);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.shell {
    width: 100%;
    max-width: 680px;
    border-radius: 28px;
    overflow: hidden;
    background: var(--shadow-grey-2);
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.header {
    padding: 34px 34px 28px;
    background: var(--pine-teal);
    color: var(--white);
}

.eyebrow {
    display: inline-block;
    padding: 7px 12px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 14px;
    background: rgba(255, 255, 255, 0.05);
}

.header h1 {
    font-size: 32px;
    letter-spacing: -0.04em;
    margin-bottom: 10px;
}

.header p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-muted);
    max-width: 520px;
}

.body {
    padding: 30px 34px 34px;
}

.alert {
    padding: 14px 16px;
    border-radius: 16px;
    margin-bottom: 16px;
    font-size: 14px;
    line-height: 1.5;
}

.alert-error {
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    color: var(--error-text);
}

.alert-success {
    background: var(--success-bg);
    border: 1px solid var(--success-border);
    color: var(--success-text);
}

.alert-warning {
    background: var(--warning-bg);
    border: 1px solid var(--warning-border);
    color: var(--warning-text);
}

.copy {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.65;
    margin-bottom: 18px;
}

.steps {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 22px;
}

.step {
    padding: 14px 16px;
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    background: rgba(255, 255, 255, 0.02);
    transition: all 0.2s ease;
}

.step strong {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    color: var(--white);
}

.step span {
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.5;
}

.step.is-active {
    border-color: var(--jungle-green);
    background: rgba(46, 164, 109, 0.1);
}

.step.is-active strong {
    color: var(--jungle-green);
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-muted);
}

.auth-input {
    width: 100%;
    padding: 14px 16px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: var(--shadow-grey);
    color: var(--white);
    font-size: 15px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.auth-input:focus {
    outline: none;
    border-color: var(--jungle-green);
    box-shadow: 0 0 0 4px rgba(46, 164, 109, 0.15);
}

.field-errors {
    margin-top: 8px;
    color: var(--error-text);
    font-size: 13px;
}

.support-box {
    margin-bottom: 18px;
    padding: 14px 16px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.6;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.btn-primary,
.btn-secondary {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    border-radius: 18px;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary {
    border: none;
    background: var(--jungle-green);
    color: var(--white);
}

.btn-primary:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
    box-shadow: 0 10px 20px rgba(46, 164, 109, 0.3);
}

.btn-secondary {
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--white);
    background: rgba(255, 255, 255, 0.05);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--jungle-green);
}

@media (max-width: 560px) {
    body {
        padding: 0;
    }

    .shell {
        min-height: 100vh;
        border-radius: 0;
    }

    .header,
    .body {
        padding-left: 24px;
        padding-right: 24px;
    }

    .steps,
    .actions {
        grid-template-columns: 1fr;
        flex-direction: column;
    }
}