* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.login-card {
    background: white;
    border-radius: 32px;
    padding: 40px;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    transition: transform 0.2s;
}
.login-card:hover {
    transform: translateY(-4px);
}
.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 32px;
    font-size: 28px;
    font-weight: 700;
    color: #0f172a;
}
.logo i {
    font-size: 32px;
    color: #f59e0b;
}
.logo span {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
}
h2 {
    text-align: center;
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #0f172a;
}
.subtitle {
    text-align: center;
    color: #64748b;
    margin-bottom: 32px;
    font-size: 14px;
}
.input-group {
    margin-bottom: 20px;
}
label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #334155;
    margin-bottom: 6px;
}
input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    font-size: 15px;
    transition: all 0.2s;
    background-color: #f8fafc;
}
input:focus {
    outline: none;
    border-color: #f59e0b;
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
    background-color: white;
}
button {
    width: 100%;
    padding: 12px;
    background: #f59e0b;
    color: white;
    border: none;
    border-radius: 40px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 8px;
}
button:hover {
    background: #d97706;
    transform: scale(1.01);
}
.error-message {
    background: #fee2e2;
    color: #dc2626;
    padding: 12px;
    border-radius: 16px;
    font-size: 14px;
    margin-bottom: 20px;
    text-align: center;
    display: none;
}
.footer {
    text-align: center;
    margin-top: 24px;
    font-size: 12px;
    color: #94a3b8;
}
@media (max-width: 480px) {
    .login-card { padding: 32px 24px; }
}