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

:root {
    --bg:       #f0f4f8;
    --white:    #ffffff;
    --primary:  #1d4ed8;
    --primary-h:#1e40af;
    --text:     #1e293b;
    --muted:    #64748b;
    --border:   #e2e8f0;
    --danger:   #dc2626;
    --danger-bg:#fef2f2;
    --sans:     'Inter', 'Sora', sans-serif;
    --radius:   12px;
}

body {
    font-family: var(--sans);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-wrap {
    width: 100%;
    max-width: 420px;
    padding: 24px 16px;
}

.brand {
    text-align: center;
    margin-bottom: 32px;
}

.brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -.4px;
}

.brand p {
    font-size: .85rem;
    color: var(--muted);
    margin-top: 4px;
}

.card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px 32px;
    box-shadow: 0 4px 24px rgba(0,0,0,.07);
}

.card h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 24px;
}

.field {
    margin-bottom: 18px;
}

.field label {
    display: block;
    font-size: .8rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 6px;
}

.field input {
    width: 100%;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 11px 14px;
    font-size: .95rem;
    color: var(--text);
    outline: none;
    transition: border-color .2s, box-shadow .2s;
}

.field input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(29,78,216,.1);
}

.field input::placeholder { color: #b0bec5; }

.error-box {
    background: var(--danger-bg);
    border: 1px solid #fecaca;
    border-radius: var(--radius);
    padding: 11px 14px;
    font-size: .85rem;
    color: var(--danger);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-login {
    width: 100%;
    padding: 12px;
    background: var(--primary);
    border: none;
    border-radius: var(--radius);
    font-size: .95rem;
    font-weight: 600;
    color: #fff;
    cursor: pointer;
    transition: background .2s, box-shadow .2s;
    margin-top: 4px;
}

.btn-login:hover {
    background: var(--primary-h);
    box-shadow: 0 4px 16px rgba(29,78,216,.25);
}

.footer-note {
    text-align: center;
    margin-top: 20px;
    font-size: .78rem;
    color: var(--muted);
}