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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: #060a13;
    color: #f1f5f9;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

#matrix-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.login-container {
    position: relative;
    z-index: 10;
    background: rgba(15, 23, 42, 0.85);
    border: 1px solid rgba(56, 189, 248, 0.15);
    border-radius: 20px;
    padding: 48px 40px;
    width: 420px;
    max-width: 95%;
    backdrop-filter: blur(24px);
    box-shadow:
        0 0 40px rgba(56, 189, 248, 0.08),
        0 25px 50px rgba(0, 0, 0, 0.5);
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-header {
    text-align: center;
    margin-bottom: 36px;
}

.shield-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.15), rgba(129, 140, 248, 0.15));
    border: 2px solid rgba(56, 189, 248, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 20px rgba(56, 189, 248, 0.2); }
    50% { box-shadow: 0 0 40px rgba(56, 189, 248, 0.4); }
}

.shield-icon i {
    font-size: 32px;
    background: linear-gradient(135deg, #38bdf8, #818cf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-header h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, #38bdf8, #818cf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 1px;
}

.login-header p {
    color: #64748b;
    font-size: 13px;
    margin-top: 6px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.alert {
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-danger {
    background: rgba(244, 63, 94, 0.1);
    border: 1px solid rgba(244, 63, 94, 0.3);
    color: #f43f5e;
}

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

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: #94a3b8;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.form-group label i {
    margin-right: 6px;
    color: #38bdf8;
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(56, 189, 248, 0.12);
    border-radius: 10px;
    color: #f1f5f9;
    font-size: 14px;
    font-family: 'Inter', sans-serif;
    transition: all 0.3s;
    outline: none;
}

.form-group input:focus {
    border-color: rgba(56, 189, 248, 0.5);
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.1);
    background: rgba(15, 23, 42, 0.8);
}

.form-group input::placeholder {
    color: #475569;
}

.btn-login {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #38bdf8, #818cf8);
    border: none;
    border-radius: 10px;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    transition: all 0.3s;
    letter-spacing: 0.5px;
    margin-top: 8px;
}

.btn-login:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(56, 189, 248, 0.3);
}

.btn-login:active {
    transform: translateY(0);
}

.btn-login i {
    margin-right: 8px;
}

.login-footer {
    text-align: center;
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid rgba(56, 189, 248, 0.08);
}

.login-footer span {
    color: #475569;
    font-size: 12px;
    font-family: 'JetBrains Mono', monospace;
}

@media (max-width: 480px) {
    .login-container {
        padding: 32px 24px;
    }
}