.provider-login-body {
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(192,57,43,0.16), transparent 32%),
        radial-gradient(circle at bottom right, rgba(192,57,43,0.12), transparent 28%),
        linear-gradient(180deg, #f8fafc 0%, #eef2f7 100%);
}

.provider-login-main {
    min-height: calc(100vh - 140px);
    padding: 54px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.provider-login-card {
    position: relative;
    width: min(440px, 100%);
    background: rgba(255,255,255,0.96);
    border: 1px solid rgba(226,232,240,0.95);
    border-radius: 28px;
    padding: 0 30px 30px;
    box-shadow: 0 24px 60px rgba(15,23,42,0.10);
    backdrop-filter: blur(10px);
    overflow: hidden;
}

.provider-login-topbar {
    height: 6px;
    margin: 0 -30px 24px;
    background: linear-gradient(90deg, #C0392B 0%, #e74c3c 100%);
}

.provider-login-header {
    text-align: center;
    margin-bottom: 22px;
}

.provider-login-logo {
    width: 66px;
    height: 66px;
    margin: 0 auto 14px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 1px solid #edf2f7;
    box-shadow: 0 10px 24px rgba(15,23,42,0.08);
    overflow: hidden;
}

.provider-login-logo img {
    width: 90%;
    height: 90%;
    object-fit: contain;
}

.provider-login-header span {
    display: inline-block;
    margin-bottom: 8px;
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #C0392B;
}

.provider-login-header h1 {
    margin: 0 0 8px;
    font-size: 32px;
    line-height: 1.1;
    color: #0f172a;
}

.provider-login-header p {
    margin: 0;
    color: #64748b;
    font-size: 15px;
    line-height: 1.45;
}

.provider-login-alert {
    margin-bottom: 16px;
    padding: 12px 14px;
    border-radius: 14px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #b91c1c;
    font-size: 14px;
    font-weight: 800;
}

.provider-login-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.provider-login-form .form-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.provider-login-form label {
    font-size: 14px;
    font-weight: 800;
    color: #334155;
}

.provider-login-form input {
    height: 52px;
    border: 1px solid #dbe4ee;
    border-radius: 16px;
    padding: 0 16px;
    font-size: 15px;
    background: #fff;
    color: #0f172a;
    transition: border-color .18s ease, box-shadow .18s ease;
}

.provider-login-form input::placeholder {
    color: #94a3b8;
}

.provider-login-form input:focus {
    outline: none;
    border-color: rgba(192,57,43,0.55);
    box-shadow: 0 0 0 4px rgba(192,57,43,0.10);
}

.provider-login-form button {
    height: 52px;
    margin-top: 6px;
    border: none;
    border-radius: 16px;
    background: linear-gradient(135deg, #C0392B 0%, #d94a3a 100%);
    color: #fff;
    font-size: 15px;
    font-weight: 900;
    cursor: pointer;
    box-shadow: 0 16px 28px rgba(192,57,43,0.22);
    transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
}

.provider-login-form button:hover {
    transform: translateY(-1px);
    box-shadow: 0 18px 30px rgba(192,57,43,0.26);
    filter: saturate(1.05);
}

@media (max-width: 640px) {
    .provider-login-main {
        padding: 34px 18px;
    }

    .provider-login-card {
        border-radius: 24px;
        padding: 0 22px 24px;
    }

    .provider-login-topbar {
        margin: 0 -22px 20px;
    }
}