body {
    margin: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    background:
        radial-gradient(circle at top left, rgba(31, 168, 122, 0.16), transparent 30%),
        radial-gradient(circle at bottom right, rgba(31, 122, 168, 0.12), transparent 26%),
        linear-gradient(180deg, #f7f9fb 0%, #eef3f6 100%);
    color: #1f2d3d;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow-x: hidden;
}

.login-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.login-box {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(10px);
    padding: 40px 30px 28px;
    border-radius: 18px;
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.12);
    width: 100%;
    max-width: 460px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.title {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 2.5rem;
    color: #1fa87a;
    margin: 0 0 10px;
}

.title-logo {
    display: block;
    margin: 0 auto;
    width: 220px;
    height: 48px;
    object-fit: cover;
    object-position: center;
}

.subtitle {
    color: #4b5563;
    margin: 0 0 28px;
}

.input-group {
    text-align: left;
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    color: #374151;
}

.input-group input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #d9e1ea;
    border-radius: 10px;
    box-sizing: border-box;
    background: #fff;
}

.input-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #e1e7ef;
    border-radius: 8px;
    box-sizing: border-box;
    background: #fff;
}

.input-group input:focus,
.input-group input:focus-visible,
.input-group select:focus,
.input-group select:focus-visible {
    outline: none;
    border-color: #1fa87a;
    box-shadow: 0 0 0 2px rgba(31, 168, 122, 0.15);
}

.btn-login {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, #2a9d8f, #1fa87a);
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: opacity 0.2s;
}

.btn-login:hover {
    opacity: 0.9;
}

.error-message {
    color: #ef4444;
    margin-top: 15px;
    font-weight: 600;
    min-height: 20px;
}

.success-message {
    color: #1f7a5a;
    margin-top: 15px;
    font-weight: 600;
    min-height: 20px;
}

.login-help {
    margin: 14px 0 4px;
    font-size: 0.9rem;
}

.login-help a {
    color: #1fa87a;
    text-decoration: none;
}

.login-help a:hover {
    text-decoration: underline;
}

.footer-container {
    position: absolute;
    bottom: 20px;
    color: #6b7280;
    font-size: 0.9rem;
}

.hidden {
    display: none;
}

.form-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 20px 0;
    color: #6b7280;
    font-size: 0.9rem;
}

.form-divider::before,
.form-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #e5e7eb;
}

.signup-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
}

.auth-brand {
    margin-bottom: 6px;
}

.auth-screen {
    text-align: left;
}

.flow-header {
    margin-bottom: 18px;
}

.flow-kicker {
    margin: 0 0 6px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #1fa87a;
}

.flow-title {
    margin: 0;
    font-size: 1.55rem;
    line-height: 1.2;
    color: #102131;
}

.flow-copy {
    margin: 8px 0 0;
    color: #516071;
    line-height: 1.45;
}

.flow-card {
    background: linear-gradient(180deg, #ffffff 0%, #f9fbfc 100%);
    border: 1px solid #e5ebf1;
    border-radius: 16px;
    padding: 18px;
}

.btn-secondary,
.btn-link {
    width: 100%;
    margin-top: 10px;
    border: 1px solid #d6dee6;
    border-radius: 10px;
    padding: 11px 12px;
    background: #fff;
    color: #274255;
    font-weight: 700;
    cursor: pointer;
}

.btn-link {
    background: transparent;
    border-color: transparent;
    color: #1fa87a;
    padding: 8px 12px;
}

.btn-link:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

.flow-message {
    min-height: 20px;
    margin: 12px 0 0;
    color: #1f7a5a;
    font-weight: 600;
}

.mask-badge {
    display: inline-flex;
    margin-bottom: 16px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(31, 168, 122, 0.12);
    color: #156a4d;
    font-size: 0.88rem;
    font-weight: 700;
}

.success-panel {
    text-align: center;
    padding: 8px 6px 2px;
}

.success-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 14px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, #2a9d8f, #1fa87a);
    color: #fff;
    font-size: 1.65rem;
    font-weight: 800;
}

.success-panel .flow-copy {
    max-width: 320px;
    margin: 8px auto 20px;
}

@media (max-width: 768px) {
    body {
        align-items: flex-start;
        justify-content: flex-start;
        min-height: 100dvh;
        padding: 12px;
    }

    .login-container {
        width: 100%;
    }

    .login-box {
        max-width: none;
        padding: 24px 16px 20px;
        border-radius: 16px;
    }

    .title {
        font-size: 1.9rem;
    }

    .flow-title {
        font-size: 1.25rem;
    }

    .flow-copy {
        font-size: 0.94rem;
        line-height: 1.5;
    }

    .flow-card {
        padding: 14px 12px;
    }

    .input-group {
        margin-bottom: 16px;
    }

    .input-group label {
        font-size: 0.95rem;
    }

    .input-group input,
    .input-group select {
        min-height: 46px;
        padding: 13px 12px;
        font-size: 16px;
    }

    .btn-login,
    .btn-secondary,
    .btn-link {
        min-height: 44px;
        padding: 12px 12px;
    }

    .footer-container {
        position: static;
        margin: 18px 0 4px;
        text-align: center;
    }
}

@media (max-width: 420px) {
    .login-box {
        padding: 22px 14px 18px;
    }

    .title {
        font-size: 1.75rem;
    }

    .title-logo {
        max-width: 150px;
    }

    .flow-title {
        font-size: 1.18rem;
    }
}