:root {
    --blue-0304: #03045E;
    --blue-023E: #023E8A;
    --blue-0077: #0077B6;
    --blue-0096: #0096C7;
    --blue-00B4: #00B4D8;
    --blue-48CA: #48CAE4;
    --blue-90E0: #90E0EF;
    --blue-ADE8: #ADE8F4;
    --blue-CAF0: #CAF0F8;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius-lg: 18px;
    --radius-md: 12px;
    --transition: all 0.2s ease-in-out;
}

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

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background-image: radial-gradient(var(--blue-ADE8) 1px, transparent 1px);
    background-size: 20px 20px;
}

.login-container {
    width: 100%;
    max-width: 420px;
    background: var(--card-bg);
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 40px -15px rgba(3, 4, 94, 0.08), 0 1px 3px rgba(3, 4, 94, 0.02);
    border: 1px solid var(--border);
    margin-bottom: 24px;
}

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

.login-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--blue-023E), var(--blue-0096));
    color: #fff;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin: 0 auto 16px auto;
    box-shadow: 0 8px 16px -4px rgba(0, 119, 182, 0.3);
}

.login-header h1 {
    font-size: clamp(1.3rem, 4vw, 1.8rem);
    font-weight: 700;
    color: var(--blue-0304);
    margin-bottom: 8px;
}

.login-header p {
    font-size: clamp(0.9rem, 1.8vw, 1rem);
    color: var(--text-muted);
}

.form-group {
    margin-bottom: 20px;
    position: relative;
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: clamp(0.9rem, 1.5vw, 0.95rem);
    font-weight: 600;
    color: var(--text-main);
}

input[type="email"],
input[type="password"] {
    width: 100%;
    padding: clamp(10px, 2vw, 14px) clamp(12px, 2vw, 16px);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    font-size: clamp(0.95rem, 1.5vw, 1.05rem);
    font-weight: 500;
    color: var(--text-main);
    transition: var(--transition);
    background-color: #f8fafc;
    outline: none;
}

input[type="email"]:focus,
input[type="password"]:focus {
    border-color: var(--blue-0096);
    background-color: #fff;
    box-shadow: 0 0 0 4px var(--blue-CAF0);
}

.btn-login {
    width: 100%;
    background-color: var(--blue-0077);
    color: #ffffff;
    border: none;
    padding: clamp(12px, 2.5vw, 14px);
    font-size: clamp(0.95rem, 1.5vw, 1.05rem);
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(0, 119, 182, 0.15);
    margin-top: 24px;
}

.btn-login:hover {
    background-color: var(--blue-023E);
    box-shadow: 0 6px 16px rgba(2, 62, 138, 0.25);
    transform: translateY(-1px);
}

.btn-login:active {
    transform: translateY(1px);
}

.alert {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    font-size: clamp(0.9rem, 1.3vw, 0.95rem);
    display: flex;
    align-items: center;
    gap: 8px;
}

.alert-error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.login-note {
    margin-top: 20px;
    padding: 14px;
    background: var(--blue-CAF0);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--blue-0077);
    font-size: clamp(0.85rem, 1.3vw, 0.9rem);
    color: var(--blue-023E);
    line-height: 1.5;
}

.login-note a {
    color: var(--blue-0077);
    font-weight: 600;
    text-decoration: none;
}

footer {
    font-size: clamp(0.8rem, 1.2vw, 0.85rem);
    color: var(--text-muted);
    text-align: center;
    font-weight: 500;
}

footer span {
    color: var(--blue-0077);
    font-weight: 600;
}

@media (max-width: 400px) {
    body {
        padding: 12px;
    }

    .login-container {
        padding: 32px 20px;
    }
}